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Supramolecular self-assembled graphitic carbon nitride catalyst:A comprehensive review on design principle,synthesis strategy,functionalization and application 认领 引用 被引量：2
1
作者 Hao Yang Shaodong Sun +1 位作者 Qing Yang Jie Cui 《Nano Materials Science》 EI CAS CSCD 2026年第2期364-437,共74页
Graphitic carbon nitride(g-CN)stands out as the most promising candidate for solar energy conversion owing to its easy preparation,metal-free nature,flexible molecular structure,moderate bandgap,and excellent thermal/... Graphitic carbon nitride(g-CN)stands out as the most promising candidate for solar energy conversion owing to its easy preparation,metal-free nature,flexible molecular structure,moderate bandgap,and excellent thermal/chemical stability.To enhance the performance of intrinsic g-CN,a supramolecular self-assembly strategy has been proposed to regulate the molecular structure of supramolecular precursors through non-covalent interactions across molecular building blocks,thereby optimizing the electronic structure of g-CN.This review provides a comprehensive overview of the recent progress in supramolecular self-assembly-derived graphitic carbon nitride(SM-CN)from both experimental and theoretical computational research in synthesis strategies,including synthesis methods and influencing factors,providing a theoretical foundation for the design of supramolecular assembly.It also discusses modification strategies,such as internal modification of the conjugated plane,interlayer optimization,and construction of heterointerfaces to improve the electronic structure of SM-CN owing to its unique layered structure.This review further summarizes the applications of SM-CN in environment and energy,including wastewater treatment,sterilization and disinfection/air purification,water splitting,H2O2production,organic synthesis/biomass conversion,CO2reduction,photocatalytic coupling technology.Finally,perspectives and outlooks for the future development of SM-CN aim to inspire further innovation in the design and construction of high-performance SM-CN for broader applications. 展开更多
关键词 Graphitic carbon nitride Photocatalysis Supramolecular self-assembly Functionalization Application
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Nickel-Catalyzed Borylation of Aryl Nonaflates for the Efficient Synthesis of Arylboronates via C—O Bond Functionalization 认领 引用
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作者 Liang Yuan Gui Chao +3 位作者 Wang Wenwen Chu Xueqiang Xu Hao Shen Zhiliang 《有机化学》 SCIE CAS CSCD 北大核心 2026年第1期207-214,共8页
Nickel-catalyzed borylation of aryl nonaflates with B2pin2 could be realized,which proceeded effectively by means of C—O bond functionalization to afford a wide variety of valuable arylboronates in moderate to excell... Nickel-catalyzed borylation of aryl nonaflates with B2pin2 could be realized,which proceeded effectively by means of C—O bond functionalization to afford a wide variety of valuable arylboronates in moderate to excellent yields with good functionality compatibility.In addition,the gram-scale synthesis and the application of the approach in the late-stage elaboration of aryl nonaflate derived from pterostilbene could also be achieved. 展开更多
关键词 nickel catalysis borylation aryl nonaflates arylboronates C-O bond functionalization
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Facile and regioselective B-H bond functionalization of carboranes via cage···Ⅰ(Ⅲ)interaction 认领 引用
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作者 Ping Zhang Hongyuan Ren +6 位作者 Zhaofeng Sun Hou-Ji Cao Deshuang Tu Chang-Sheng Lu Jordi Poater Miquel Solà Hong Yan 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第5期320-326,共7页
The development of innovative strategies for inert B–H bond functionalization of carboranes and exploration of their potential applications represents a central task in organic chemistry.Here,we demonstrate the facil... The development of innovative strategies for inert B–H bond functionalization of carboranes and exploration of their potential applications represents a central task in organic chemistry.Here,we demonstrate the facile B–H bond functionalization in carboranes through a cage···Ⅰ(Ⅲ)interaction between a nido–carborane cluster and a hypervalent iodine(Ⅲ)unit.Both experimental and theoretical investigations reveal that the cage···Ⅰ(Ⅲ)interaction induces a charge transfer from the boron cage to the iodine moiety,which leads to a significant decrease of the negative charge at the B(9)–H site of nido–carborane.This facilitates the activation of the B–H bond and subsequent chemical transformations.The unprecedented cage···Ⅰ(Ⅲ)interaction offers a similar B–H bond activation mode as metal mediation.Furthermore,the treatment of nido–carboranes with the iodide(Ⅲ)reagent of Ph I(OAc)2affords nido–carborane-phenyl iodonium zwitterions as versatile synthons,which enable the modular construction of exopolyhedral B–O,B–N,B–P,and B–S bonds of carborane derivatives.This approach provides an efficient and scalable synthetic platform for metal-free and site-selective B–H bond functionalization of nido–carboranes under mild conditions.Notably,the developed 2D-3D fused structures can be used as ligands for the facile construction of novel boron cluster-fused hetero-polycyclic metal complexes in one step.These compounds demonstrate intriguing photophysical properties including aggregation-induced emission,tunable emission wavelength,and oxygen sensing. 展开更多
关键词 Carboranes B-H functionalization Boron chemistry Boron cluster-based luminogens Aggregation induced emission
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Covalent Aminopropyl Functionalization Tailors Ti3C2TxMXene for High-Performance Flexible NIR Photodetectors 认领 引用
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作者 Chu-Qiao Hu Qi-Cheng Duan +8 位作者 Yu-Meng Bai Guang-Li Zhang Zhe Zhang Pei-Lun Qiu Di Wu Ce Fu Jian-Qiao Liu La Li Guo-Zhen Shen 《Rare Metals》 SCIE EI CAS CSCD 2026年第5期750-761,共12页
Ti3C2TxMXene,with its exceptional electrical conductivity,mechanical flexibility,and processability,compatible with wearable and integrated systems,plays a crucial role in advancing flexible photodetectors fo... Ti3C2TxMXene,with its exceptional electrical conductivity,mechanical flexibility,and processability,compatible with wearable and integrated systems,plays a crucial role in advancing flexible photodetectors for intelligent perception systems and bioinspired artificial vision.However,its intrinsic narrow bandgap(<0.1 eV)and the limited diversity of surface functionalization strategies severely constrain its use as a photosensitive layer in photodetectors.Herein,a surface engineering strategy is developed to covalently graft aminopropyl groups onto the surface of Ti3C2Txvia Si-O-Ti linkages,thereby successfully widening its bandgap to 1.46 eV.The resulting Au/Ti3C2Tx-NH2/Au flexible photodetector exhibits excellent bending resistance and demonstrates an ultrahigh on-off ratio of 1012 under 808 nm laser excitation,along with an excellent responsivity of 3.72×104A W-1and high specific detectivity of 1.03×1018 Jones.Additionally,the fabricated 147-pixel image sensor achieves high-contrast imaging of the"MAX"pattern,providing a new pathway for advancing high-performance flexible near-infrared photodetector technologies in bioinspired vision and flexible wearable image sensing. 展开更多
关键词 flexible electronics functionalization image sensors photodetectors Ti3C2TxMXene
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Non-canonical bio-inspired iron catalysis for aliphatic C–H functionalization 认领 引用
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作者 Xiao-Hua Chen Yifan Fan +1 位作者 Zitong Wu Tao Tu 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第3期4-5,共2页
Cytochromes P450(P450s or CYPs)constitute a largesuperfamily of heme-thiolate monooxygenases that are ubiquitous in nature.These remarkable enzymes serve as highly versatile biocatalysts capable of mediating selective... Cytochromes P450(P450s or CYPs)constitute a largesuperfamily of heme-thiolate monooxygenases that are ubiquitous in nature.These remarkable enzymes serve as highly versatile biocatalysts capable of mediating selective oxidations across an exceptionally broad range of organic substrates. 展开更多
关键词 organic substrates aliphatic C H functionalization mediating selective oxidations cytochromes p p s biocatalysts cytochromes P iron catalysis bioinspired
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Smart Nano-Cellulosic-Based Materials as Antiviral Agents:A Brief Insight into Scientific Advances and Functionalization Strategies 认领 引用
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作者 Tamer Y.A.Fahmy Samir Kamel Ahmed M.Khalil 《Journal of Renewable Materials》 EI CAS 2026年第6期102-131,共30页
The growing threat of viral pandemics necessitates innovative antiviral strategies that are effective,sustainable,and scalable.This review highlights nanocellulose as a renewable,biocompatible nanomaterial and a promi... The growing threat of viral pandemics necessitates innovative antiviral strategies that are effective,sustainable,and scalable.This review highlights nanocellulose as a renewable,biocompatible nanomaterial and a promising multifunctional antiviral platform.We examine cellulose nanocrystals,nanofibrils,and bacterial nanocellulose,emphasizing their synergistic antiviral mechanisms,including nanoscale viral entrapment and surface-mediated inactivation via sulfation,cationic groups,and metal nanoparticles.Key advances include photothermally active nanocellulosegraphene composites for on-demand viral deactivation,sulfated nanocellulose mimicking heparin’s virus-trapping properties,and engineered biopolymer hybrids for targeted drug delivery and mucosal immunity.Translational applications span antiviral coatings,self-sterilizing filters,and regenerative wound dressings.The review also addresses scalability and regulatory challenges,integrating computational modeling and structure-activity relationships to guide real-world implementation.Nanocellulose-based technologies offer a transformative approach to antiviral defense,merging adaptability,sustainability,and multifunctionality to meet the demands of pandemic preparedness and redefine the future of biomedical materials. 展开更多
关键词 Nanocellulose antiviral materials surface functionalization viral inhibition biomedical applications
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Next-generation biochar adsorbents from waste biomass: functionalization strategies and real-world water treatment applications 认领 引用
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作者 Mohssine Ghazoui Otmane Boudouch +4 位作者 Rajaa Zahnoune Aboubacar Sidigh Sylla Safa Aharrouy Siham Dabali Reda Elkacmi 《ENGINEERING Environment》 SCIE EI CAS CSCD 2026年第1期177-203,共27页
Biochar has emerged as a sustainable and cost-effective adsorbent for the removal of emerging contaminants from wastewater. This review critically explores recent advances in the design and application of engineered b... Biochar has emerged as a sustainable and cost-effective adsorbent for the removal of emerging contaminants from wastewater. This review critically explores recent advances in the design and application of engineered biochars derived from diverse waste biomasses, focusing on the link between structural modifications and pollutant-specific removal mechanisms. Functionalization strategies including physical and chemical activation, heteroatom doping, surface grafting, and hybrid composite formation are systematically analyzed for their impact on adsorption efficiency and selectivity toward dyes, heavy metals, pharmaceuticals, and per- and polyfluoroalkyl substances. Particular attention is paid to performance in column systems, regeneration potential, and behaviour in complex real-world matrices, which remain underexplored in current literature. The diversity of adsorption mechanisms such as electrostatic interactions, π–π stacking, hydrogen bonding, ion exchange, and surface complexation is discussed in relation to surface chemistry and pollutant type. Despite promising results, critical challenges persist, including biochar heterogeneity, lack of standard production protocols, potential leaching of dopants, and limitations in large-scale implementation. This review highlights the need for unified assessment frameworks, life cycle analyses, and integration strategies aligned with circular economy principles. By bridging the gap between laboratory innovation and field-scale application, this work provides a comprehensive roadmap for researchers, engineers, and stakeholders seeking to deploy next-generation biochar-based sorbents in sustainable water treatment systems. 展开更多
关键词 Biochar Waste biomass valorization Surface functionalization Adsorption mechanisms Emerging contaminants Water treatment
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Rare earth-based auxiliary agents in synthesis and functionalization of biodegradable polymers:Application and prospect 认领 引用
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作者 Yuxuan Qi Jia Niu +4 位作者 Huhu Tian Tingting Lu Hongzhang Cao Yanlin Feng Xiaoli Yu 《Journal of Rare Earths》 SCIE EI CAS CSCD 2026年第6期1646-1667,I0001,共22页
Biodegradable polymers have emerged as pivotal materials in addressing global environmental challenges,driven by their eco-friendly characteristics and alignment with carbon neutrality goals.Through continuous researc... Biodegradable polymers have emerged as pivotal materials in addressing global environmental challenges,driven by their eco-friendly characteristics and alignment with carbon neutrality goals.Through continuous research and innovation,the synthesis and functionalization of biodegradable polymers using chemical and physical methods has made great progress and have enabled significant applications in food packaging,medical and health care,agriculture,and textile industry.Rare earths are often termed"industrial vitamins"and have demonstrated unique catalytic and functional properties due to their 4f electronic configurations and lanthanide contraction effects.These attributes make rare earth indispensable in enhancing the synthesis efficiency,mechanical performance,and functional versatility of biodegradable polymers.This review systematically explores the role of rare earth as catalysts in synthesizing key biodegradable polymers,including polyesters,polycarbonates,polyanhydrides,polyamino acids,etc.Meanwhile,the utility of rare earth in polymer functionalization for improved thermal stability,biodegradability,and mechanical strength.We critically analyze the mechanisms underlying ra re earth-mediated polyme rization,including coo rdinatio n-insertion and stereoselective catalysis,and highlight their low toxicity and multifunctionality.Challenges such as catalyst recyclability,costeffectiveness,and scalability are discussed,alongside future directions for leveraging rare earth in sustainable polymer design.This work provides a roadmap for advancing biodegradable polymers through REE-based innovations,addressing both environmental and industrial demands. 展开更多
关键词 Rare earths Biodegradable polymers Catalyzation Functionalization
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Csp2-H functionalization as an efficient catalytic route to carbazoles 认领 引用
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作者 Giulia Brufani Edoardo Bazzica +2 位作者 Yanlong Gu Francesco Mauriello Luigi Vaccaro 《Chinese Chemical Letters》 SCIE CAS CSCD 2026年第1期39-56,共18页
Given the broad applicability of carbazole structural moieties in materials science and medicinal chemistry,significant efforts have been devoted to developing efficient synthetic catalytic methodologies to access thi... Given the broad applicability of carbazole structural moieties in materials science and medicinal chemistry,significant efforts have been devoted to developing efficient synthetic catalytic methodologies to access this valuable scaffold.Catalyzed direct Csp2-H functionalization provides an effective and costefficient approach to synthesizing carbazoles from simple and readily available starting materials,ensuring a promising path characterized by excellent atom and step economy.This review highlights the substantial progress made in the last 10 years in advancing catalytic Csp2-H functionalization techniques for synthesizing carbazoles. 展开更多
关键词 C-H functionalization Carbazoles Synthetic methodologies Catalysis
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Nitrogen functionalization of natural hydroxyl cellulose induces a LiF-rich interphase for lithium metal batteries 认领 引用
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作者 Jie Deng Ningxin Chen +5 位作者 Sida Xie Shan Liu Zichan Yuan Shuaiming He Shi Chen Zhaohui Wang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第2期37-47,I0003,共11页
Cellulose,the most abundant and renewable biopolymer,offers a sustainable and cost-effective solution for regulating lithium electrodeposition toward safer lithium metal batteries,thanks to its high nanofibrous struct... Cellulose,the most abundant and renewable biopolymer,offers a sustainable and cost-effective solution for regulating lithium electrodeposition toward safer lithium metal batteries,thanks to its high nanofibrous structure and intrinsic lithiophilic property.In this work,we introduce interface-engineered cellulose-based separators by converting intrinsic hydroxyl groups on cellulose nanofibers(CNFs)to nitrogen functionalities through a trace conducting polymer coating.Both experimental and theoretical results reveal that the nitrogen moieties disrupt the compact hydrogen bond network within hydroxyl cellulose,enabling multiple nitrogen-lithium interactions that enhance lithium ion transport.In addition to an extraordinary Li+transference number of 0.86 and a high ionic conductivity of 1.1 mS cm-1,the nitrogen-functionalized CNF contributes to a uniform electric field and Li+concentration distribution across the lithium metal surface.This facilitates the formation of a LiF-rich solid electrolyte interface and suppresses Li dendrite growth.Consequently,Li‖Li cells demonstrate stable plating/stripping cycles for approximately 3000 h at a current density of 1 mA cm-2 with a fixed capacity of 1 mAh cm-2,while maintaining a low overpotential of 15 mV.Our work provides valuable insights into the surface functionalization of natural biomass for advancing sustainable energy storage technologies. 展开更多
关键词 Cellulose nanofiber Nitrogen functionalization Separator Solid electrolyte interphase Lithium metal anodes
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Rational design and functionalization of covalent organic frameworks for multivalent metal ion storage 认领 引用
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作者 Chaohui He Zhenyang Zhou +1 位作者 Liqiang Mai Qinyou An 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第6期418-435,I0011,共18页
Multivalent-ion batteries(MVIBs)have demonstrated considerable potential for scalable energy storage,owing to advantages including high energy density,enhanced safety,and environmental sustainability.However,the diffu... Multivalent-ion batteries(MVIBs)have demonstrated considerable potential for scalable energy storage,owing to advantages including high energy density,enhanced safety,and environmental sustainability.However,the diffusion dynamics of MVIBs in conventional electrode materials are sluggish due to MVIBs'high charge density and the large radius of hydrated ions,which can easily lead to severe degradation of the electrode structure,posing significant challenges for practical applications.COFs and their derivatives show considerable promise for application in MVIBs,owing to their programmable crystalline architectures,large specific surface areas,and precisely controllable active sites.Therefore,after a thorough discussion of the challenges facing MVIBs,including the storage and diffusion difficulties of multivalent ions and the side reactions of the battery,this paper provides a systematic overview of the recent advances of COFs for MVIBs.The structure–activity relationships of their structural design strategies and energy storage mechanisms are analyzed to illustrate their unique advantages.Finally,the properties and modification methods of COFs and their derived materials as electrode materials for MVIBs(Zn,Ca,Mg,and Al ion batteries)are discussed in detail.The paths forward are expected to provide theoretical references and technical routes for the design of advanced multivalent metal-ion batteries. 展开更多
关键词 Multivalent ion batteries Structural design Covalent organic frameworks Storage mechanism Functionalization strategy
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Recent Advances in Nanocellulose-Based Aerogels:Fabrication,Functionalization and Applications 认领 引用
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作者 Lin Jia Qiang He 《Journal of Polymer Materials》 SCIE CAS 2026年第1期38-63,共26页
Aerogels,renowned as ultra-lightweight solids with exceptional porosity and specific surface area,have emerged as pivotal materials for thermal insulation,catalysis,energy storage,and biomedicine.This review comprehen... Aerogels,renowned as ultra-lightweight solids with exceptional porosity and specific surface area,have emerged as pivotal materials for thermal insulation,catalysis,energy storage,and biomedicine.This review comprehensively evaluates the recent strides in sustainable,high-performance cellulose-based aerogels,emphasizing their fabrication,functionalization,and application prospects.It details the extraction of cellulose fromdiverse sources and its subsequent processing into nanocellulose(e.g.,cellulose nanofibrils and nanocrystals),which serves as the fundamental building block for aerogel synthesis.The critical sol-gel transition,solvent selection,and the pivotal role of drying techniques—freeze-drying,supercritical drying,and ambient pressure drying—in determining final aerogel architecture and properties are systematically analyzed.Special emphasis is placed on the advanced chemical modification of nanocellulose,including esterification,click chemistry,etherification,silanization,and amidation,which tailors surface chemistry to impart hydrophobicity,reactivity,or specific binding sites.The profound influence of cellulose source characteristics(aspect ratio,crystallinity,surface charge)on the pore-forming mechanism and aerogel performance is thoroughly discussed,bridging raw material selection with microstructure design.The review further elucidates the engineering of hybrid and composite aerogels by integrating silica,graphene,polymers,semiconductors,and metal-organic frameworks(MOFs),which synergistically enhance functionalities for targeted applications such as adsorption,photocatalysis,energy storage,sensing,and biomedical engineering.Despite significant progress,challenges remain in scalable green fabrication,balancing ultra-high porosity with mechanical robustness,and deepening the mechanistic understanding in complex applications.This work consolidates the current state-of-the-art,identifies key knowledge gaps,and provides a forward-looking perspective on the development of cellulose aerogels as versatile platforms for next-generation sustainable technologies. 展开更多
关键词 Nanocellulose aerogels functionalization nanocellulose-based composites drying methods hybrid materials
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Organic functionalization engineering in vanadium-based cathodes toward advanced aqueous zinc-ion batteries 认领 引用
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作者 Shile Liu Lingyun Chen 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2026年第2期1081-1109,I0022,共29页
Vanadium-based materials have emerged as promising cathode candidates for aqueous zinc-ion batteries(AZIBs)due to their multivalent redox characteristics and diverse crystal structures,which enable high energy storage... Vanadium-based materials have emerged as promising cathode candidates for aqueous zinc-ion batteries(AZIBs)due to their multivalent redox characteristics and diverse crystal structures,which enable high energy storage capacity.Nevertheless,practical applications are hindered by several critical challenges,including vanadium species dissolution,side-product formation,sluggish Zn2+diffusion kinetics,and low electrical conductivity.Organic functionalization,benefiting from its structural tunability and abundant functional groups,has been proven to be an effective strategy for enhancing the electrochemical performance of vanadium-based cathodes.This review systematically summarizes recent advances in organic-functionalized vanadium-based cathodes.First,the energy storage mechanism of vanadiumbased cathodes and the fundamental properties of organic compounds relevant to cathode optimization are outlined.Then,the functions of organic compounds are comprehensively analyzed from four key perspectives:capacity improvement,conductivity enhancement,Zn2+diffusion kinetics optimization,and cycling stability promotion.Furthermore,the specific electrochemical performance modulation effects and practical application examples of this strategy are discussed in detail.Finally,current limitations and challenges in this field are highlighted,and corresponding solutions and future research directions are proposed,offering theoretical guidance and insights for the development of high-performance vanadium-based cathodes for AZIBs. 展开更多
关键词 Aqueous zinc-ion batteries Vanadium-based cathode Organic functionalization
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Self-Activating Integrated Carbon-Based Air Cathodes With In Situ Oxygen Functionalization for Durable and High-Performance Metal-Air Batteries 认领 引用
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作者 Funing Bian Yuexi Chen +3 位作者 Hongfei Zhang Junfang Cheng Shulin Gao Sujuan Hu 《Carbon Energy》 SCIE EI CAS CSCD 2026年第1期176-186,共11页
Carbon-based air cathodes offer low cost,high electrical conductivity,and structural tunability.However,they suffer from limited catalytic activity and inefficient gas transport,and they typically rely on noble metal ... Carbon-based air cathodes offer low cost,high electrical conductivity,and structural tunability.However,they suffer from limited catalytic activity and inefficient gas transport,and they typically rely on noble metal additives or complex multilayer configurations.To tackle these issues,this study devised a self-activated integrated carbon-based air cathode.By integrating in situ catalytic site construction with structural optimization,the strategy not only induces the formation of oxygen functional groups(─C─OH,─C═O,─COOH),hierarchical pores,and uniformly distributed active sites,but also establishes a favorable electronic and mass-transport environment.Furthermore,the roll-pressing-based integrated design streamlines electrode construction,reinforces interfacial bonding,and significantly enhances mechanical stability.Density functional theory(DFT)calculations show that oxygen functional groups initiate hydrogen bonding interaction and promote charge enrichment,which improves the activity of the cathode and facilitates intermediate adsorption/desorption in oxygen reduction and evolution reactions processes.As a result,the integrated air cathode-based rechargeable zinc-air batteries(RZABs)achieve a high specific capacity of 811 mAh g-1.It also performs well in quasi-solid-state RZABs and silicon-air batteries systems across a wide temperature range,demonstrating strong adaptability and application potential.This study provides a scalable and cost-effective design strategy for high-performance carbon-based air cathodes,offering new insights into advancing durable and practical metal-air energy systems. 展开更多
关键词 integrated air cathode metal-air batteries ORR/OER oxygen functional group engineering self-activation
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Chemical functionalization of helical carbon nanotubes using a low-molarity nitric acid solution for high-performance structural applications of nanocomposites 认领 引用
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作者 Sean R.Taklimi Ali Ghazinezami Davood Askari 《Frontiers of Materials Science》 SCIE CAS CSCD 2026年第2期145-157,共13页
Helical carbon nanotubes(HCNTs)offer unique geometrical characteristics and capabilities;however,their properties,functionalization,and applications have not been sufficiently explored,compared to the straight CNTs th... Helical carbon nanotubes(HCNTs)offer unique geometrical characteristics and capabilities;however,their properties,functionalization,and applications have not been sufficiently explored,compared to the straight CNTs that have different crystallinity and structural characteristics.The coil-shaped geometries of HCNTs can substantially increase their mechanical entanglement/interlocking with solidified host-resins and the microfiber-reinforcements in fiber-reinforced composites.As a result,it can considerably improve the mechanical,thermal,electrical,and magnetic properties of the composites.To further improve their effectiveness,HCNTs should be chemically treated to promote their molecular interactions and bonding-effectiveness with the resin molecules,as well as to enhance their dispersion-uniformity and suspension-stability in the host-resin.In this study,a reflux method was deployed to chemically functionalize HCNTs with a low-molarity nitric acid-solution and then effects of reflux time and temperature on surface-modification and dispersion-homogeneity of the functionalized HCNTs(FHCNTs)were investigated.The results from SEM,FTIR,XRD,Raman spectroscopy,and visual dispersion-test showed that changes in reflux time and temperature were mostly effective in atomic scale structural alteration of the HCNTs.Except for the FHCNTs that were treated at higher temperatures for a longer time,the rest showed improvements in their dispersion,an increase in ID/IG Raman ratios,and changes in FTIR spectra. 展开更多
关键词 carbon nanotubes with helical geometries chemical functionalization characterization reflux time and temperature low molarity acid nanocomposites
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Recent Advances toward Electro- and Electrophotochemical 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ)-Catalyzed C—H/C—F Bonds Functionalization 认领 引用 被引量：2
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作者 Yongmei Li Liangbo Sun +1 位作者 Kun Xu Chengchu Zeng 《有机化学》 SCIE CAS CSCD 北大核心 2025年第2期668-676,共9页
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) is a stoichiometric oxidant that is frequently used in traditional organic synthesis. Recently, the rapid development of organic electrochemistry has led to new advancem... 2,3-Dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) is a stoichiometric oxidant that is frequently used in traditional organic synthesis. Recently, the rapid development of organic electrochemistry has led to new advancements in DDQ-catalyzed C—H bonds functionalization. Moreover, the challenging C—H functionalization of electron-deficient arenes has been achieved through the merger of electrochemical DDQ catalysis and photoirradiation. In addition, the synthetic utility of electrophotochemical DDQ catalysis was further demonstrated by the nucleophilic aromatic substitution (SNAr) reaction of unactivated aryl fluorides. The recent developments in electro- and electrophotochemical DDQ-catalyzed C—H/C—F func- tionalizations with attention to their strategies and mechanistic insights are summarized. It is hoped that this not only deepens the understanding of this field, but also helps relevant researchers expand the application scope of DDQ catalysis. 展开更多
关键词 2 3-dichloro-5 6-dicyano-1 4-benzoquinone(DDQ) electrocatalysis organic electrosynthesis electrophotocatalysis C-H functionalization C-F functionalization
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Research on Surface Functionalization Modification and Photoelectric Properties of Single-Walled Carbon Nanotubes 认领 引用
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作者 Jingchun Zhang Wenqing Shen Zhikun Chen 《Journal of Electronic Research and Application》 2026年第5期194-200,共7页
Single-walled carbon nanotubes(SWCNTs)are regarded as the primary candidate materials for optoelectronic devices in the post-Moore era due to their unique two-dimensional quantum confinement effect,high carrier mobili... Single-walled carbon nanotubes(SWCNTs)are regarded as the primary candidate materials for optoelectronic devices in the post-Moore era due to their unique two-dimensional quantum confinement effect,high carrier mobility,and tunable bandgap structure.However,the intrinsic SWCNTs feature strong chemical inertness,easy agglomeration,and fixed band structure,which greatly restrict their performance in complex optoelectronic systems.Therefore,this paper focuses on bandgap renormalization induced by sp3 hybridization,Fermi level shift caused by charge-transfer doping,exciton binding energy modification via dielectric environment screening,and the influence of chiral-selective modification on circular dichroism.Based on the established Hamiltonian perturbation model and many-body Green’s function theory framework,the physical picture of macroscopic reconstruction of the photoelectric response of SWCNTs by functional groups as artificial defects or dielectric coating layers is revealed from a microscopic perspective,providing a theoretical basis for the design of high-performance and multifunctional carbon nanotube optoelectronic devices. 展开更多
关键词 Single-walled carbon nanotubes Surface Functionalization modification Photoelectric properties
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PEG-based passivation and functionalization of diamond surfaces for biomolecular quantum sensing 认领 引用
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作者 Ziting Sun Sanyou Chen +2 位作者 Wanhe Li Shijie Li Fazhan Shi 《Journal of University of Science and Technology of China》 CAS CSCD 北大核心 2025年第10期12-20,I0001,共9页
The reduction of nonspecific binding(NSB,or passivation)and functionalization of the diamond surface are crucial for nitrogen-vacancy(NV)center-based quantum sensing in biomedical systems,especially for biomolecular d... The reduction of nonspecific binding(NSB,or passivation)and functionalization of the diamond surface are crucial for nitrogen-vacancy(NV)center-based quantum sensing in biomedical systems,especially for biomolecular detection.In this work,we systematically investigated polyethylene glycol(PEG)-based treatment technologies for the passivation and functionalization of diamond surfaces.Specifically,we evaluated the passivation and functionalization effects of PEG with different chain lengths and then the impact of streptavidin proteins on these treatments.Our results show that either a mixture of 5 kDa PEG and biotin-PEG in a≥5∶1 ratio(PEG to biotin-PEG)or 20 kDa biotin-PEG alone coordinated the suppression of NSB and efficient specific binding of biomolecules and nanoparticles.In addition,we confirmed that the magnetic-sensing-related properties of NV centers were not affected by the PEGylation process and verified the applicability of our diamond treatment scheme with an immunomagnetic assay of antibodies in human serum samples.Overall,our study provides an effective biocompatible treatment strategy and practical protocols for diamond surfaces,promoting NV center-based quantum sensing of biomolecules. 展开更多
关键词 diamond surface PEGylation nonspecific binding functionalization quantum sensing
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Constructive Strategy of Amine Functionalization on Cu−In−Zn−S With N→Cu Coordination for Efficacious Photocatalytic Hydrogen Evolution 认领 引用
19
作者 Mengmeng Ma Runkang Lin +4 位作者 Kaige Huang Shizhong Yue Maohong Fan Zhijie Wang Shengchun Qu 《Carbon Energy》 SCIE EI CSCD 2025年第10期162-173,共12页
Functionalization has emerged as a pivotal endeavor to tailor the surface properties of photocatalysts.We propose a facile amine functionalization strategy to establish a Cu−In−Zn−S(CIZS)/NiSx hybrid with covalent bon... Functionalization has emerged as a pivotal endeavor to tailor the surface properties of photocatalysts.We propose a facile amine functionalization strategy to establish a Cu−In−Zn−S(CIZS)/NiSx hybrid with covalent bonds using individual ethylenediamine(EDA)molecules.Our approach witnesses a remarkable photocatalytic hydrogen evolution(PHE)competence of 65.93 mmol g−1h−1driven by visible light,the highest value yielded by CIZS to date.X-ray absorption spectra of CIZS and density functional theory(DFT)calculations confirm the crucial amine N→Cu coordination after amine functionalization.The new emerging coordination via lone-pair electron donation profitably accesses the regulation of the coordination environment,electronic structures,and carrier behavior.Moreover,individual EDA molecule with two-terminal−NH2 group serves as a molecular bridge to hybrid CIZS and NiSxcocatalyst via N→Cu and N→Ni coordination,favorably promoting efficient charge transport.This study provides advances in practical functionalizing photocatalysts. 展开更多
关键词 amine functionalization coordination Cu−In−Zn−S molecular bridges photocatalytic hydrogen evolution
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Recent Advancements in Biochar Functionalization from Crop Residues for a Green Future 认领 引用
20
作者 Omojola Awogbemi Daramy Vandi Von Kallon Ramesh CRay 《Journal of Renewable Materials》 EI CAS 2025年第11期2191-2233,共43页
Increased human and industrial activities have exacerbated the release of toxic materials and acute envi-ronmental pollution in recent times.Biochar,a carbon-rich material produced from biomass,is gaining momentum as ... Increased human and industrial activities have exacerbated the release of toxic materials and acute envi-ronmental pollution in recent times.Biochar,a carbon-rich material produced from biomass,is gaining momentum as a versatile material for attaining a sustainable environment.The study reviews the application of functionalized biochar for energy storage,environmental remediation,catalysis,and sustainable agriculture,aiming to achieve a greener future.Thedeployment of crop residues as a renewable feedstock for biochar,and their properties,compositions,modification,and functionalization techniques are also discussed.Additionally,the avenues for applying functionalized biochar to achieve a greener future,future trends and innovations,challenges,and future research directions are highlighted.Despite the limitations of scalability,ecotoxicological risks,logistical issues,lack of characterization protocols,high production costs,poor social acceptance,and inadequate policy and regulatory frameworks,functionalized biochar offers a better surface area,improved porosity,enhanced functional groups,and higher recoverability,leading to improved performance,adsorption capacity,biodegradability,and applications in specialized fields.Future research should prioritize standardization,scalability,cost reduction strategies,expansion of application areas,integration of emerging tools such as artificial intelligence and predictive modeling,and the development of policy and regulatory frameworks,ensuring that biochar’s full potential is harnessed effectively to support a low-carbon,resource-efficient future and global sustainability goals. 展开更多
关键词 Functionalization techniques biochar crop residues adsorption capacity green future energy storage
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