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Colloidal synthesis of lead chalcogenide/lead chalcohalide core/shell nanostructures and structural evolution 认领 引用 被引量：2
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作者 Yang Liu Kunyuan Lu +11 位作者 Yujie Zhu Xudong Hu Yusheng Li Guozheng Shi Xingyu Zhou Lin Yuan Xiang Sun Xiaobo Ding Irfan Ullah Muhammad Qing Shen Zeke Liu Wanli Ma 《Journal of Semiconductors》 EI CAS CSCD 2025年第4期38-44,共7页
Lead chalcohalides(PbYX,X=Cl,Br,I;Y=S,Se)is an extension of the classic Pb chalcogenides(PbY).Constructing the heterogeneous integration with PbYX and PbY material systems makes it possible to achieve significantly im... Lead chalcohalides(PbYX,X=Cl,Br,I;Y=S,Se)is an extension of the classic Pb chalcogenides(PbY).Constructing the heterogeneous integration with PbYX and PbY material systems makes it possible to achieve significantly improved optoelectronic performance.In this work,we studied the effect of introducing halogen precursors on the structure of classical PbS nanocrystals(NCs)during the synthesis process and realized the preparation of PbS/Pb3S2X2 core/shell structure for the first time.The core/shell structure can effectively improve their optical properties.Furthermore,our approach enables the synthesis of Pb3S2Br2 that had not yet been reported.Our results not only provide valuable insights into the heterogeneous integration of PbYX and PbY materials to elevate material properties but also provide an effective method for further expanding the preparation of PbYX material systems. 展开更多
关键词 lead chalcohalides lead chalcogenides PbS nanocrystal core/shell structure Pb3S2X2nanocrystal
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Synergistic Enhancement of Mechanical and Tribological Properties in TiB2/Mo Composites via Core-Shell Structure Mediated Dislocations Migration 认领 引用
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作者 Dongting Li Liyu Zhou +6 位作者 Jie Yu Wanjie Sun Kaiqiang Wang Lu Wang Renquan Wang Chang Liu Ying Liu 《Rare Metals》 SCIE EI CAS CSCD 2026年第4期729-743,共15页
Ceramic reinforcement is crucial for crafting ultrastrong and wear-resistant metallic components.However,pronounced stress concentration and strain incompatibility at ceramic-metal interfaces often trigger microcrack ... Ceramic reinforcement is crucial for crafting ultrastrong and wear-resistant metallic components.However,pronounced stress concentration and strain incompatibility at ceramic-metal interfaces often trigger microcrack initiation and ceramic spalling exacerbating friction under sliding conditions.This study presents a heavily reinforced TiB2/Mo composite(20 vol%TiB2)that exhibits remarkably reduced friction-wear and enhanced strength-ductility synergy.Relying on a"borrowing-dislocations"strategy,the TiB2/Mo composite enables ultrahigh strength and excellent wear resistance-lubrication simultaneously,it provides a gigapascal compressive strength of 1987±45 MPa with an engineering strain of about 19.7%and a high hardness of680±28 HV5 combining the low friction coefficient of 0.332 and wear rate of 3.38×10-5 mm3 N-1 m-1 under 30 N(contact stress 3.1 GPa).These outstanding properties stem from the formation of a Mo-Mo2B-(Mo,Ti)B2 dislocation-slip channel,such a self-assembled core-shell structure with coherent interfacial bonding facilitates dislocation transfer from the metal matrix into the ceramic phase during deformation.The unique core-shell structure effectively mitigates interfacial stress concentration enabling an exceptional combination of strength and ductility.The significant friction reduction is attributed to the in situ formation of a wear-induced oxide film,high damage tolerance,and effective load support during repetitive sliding.This study provides new insights to overcome the strength-ductility trade-off and enhance wear resistance in metal matrix composites via the"borrowing-dislocations"strategy. 展开更多
关键词 core‑shell structure mechanical properties Mo composites tribological properties
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ZIF-Derived Co@Fe-P Electrocatalyst With Core-Shell Structure for Efficient Oxygen Evolution Reaction 认领 引用
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作者 Hongyu Gong Henghui Chen +6 位作者 Wanghuan Duan Yandi Rao Ailing Song Xiaorui Wang Jing Wang Yaru Zhang Tifeng Jiao 《Carbon Energy》 SCIE EI CAS CSCD 2026年第2期34-43,共10页
Rational design of non-noble electrocatalysts with high performance for oxygen evolution reaction(OER)still remains a challenge.In this study,a ZIF-derived electrocatalyst(Co@Fe-P)with a core-shell structure is design... Rational design of non-noble electrocatalysts with high performance for oxygen evolution reaction(OER)still remains a challenge.In this study,a ZIF-derived electrocatalyst(Co@Fe-P)with a core-shell structure is designed by using Co-compounds as the core and PO43-decorated Fe-compounds as the shell.The inner Co-core and outer Fe-shell are connected through Co-O-Fe and Fe-O-P linkage.The Co@Fe-P electrocatalyst exhibits an enhanced performance for OER with a low overpotential(280 mV),low Tafel slope(41.9 mV dec-1)at 10 mA cm-2,and a 60-h durability.The electron transfer from the CoOOH-core to the FeOOH-shell is greatly facilitated,which improves the OER activity of Co@Fe-P kinetically.Theoretical calculations indicate that the interaction of Co-O-Fe and Fe-O-P in Co@Fe-P reduces the overlap between the O 2p and Fe 3d orbitals,which greatly facilitates the transformation from*OH to*O during the OER process via the adsorbate evolution mechanism(AEM)pathway.This finding provides insight for the design of efficient electrocatalysts for OER. 展开更多
关键词 Co@Fe‐P core‐shell structure OER ZIF‐derived electrocatalyst
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Design of CoSn2/Sn@C core-shell structure for stable lithium-ion batteries 认领 引用
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作者 Dan ZHANG Lu-zhen GUO +5 位作者 Da-xu ZHANG Wen-qiang FANG Yuan-hang GAO Zuo-su QIN Ning ZHANG Gen CHEN 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2026年第5期1659-1671,共13页
To mitigate the issues of severe volume expansion(>259%)and electrode pulverization in Sn-based anodes(theoretical specific capacity:993 mA·h/g)for next-generation lithium-ion batteries(LIBs),we designed a CoS... To mitigate the issues of severe volume expansion(>259%)and electrode pulverization in Sn-based anodes(theoretical specific capacity:993 mA·h/g)for next-generation lithium-ion batteries(LIBs),we designed a CoSn2/Sn@C core−shell structure to accommodate the volume change and stabilize the cycling performance of LIBs.The Co3O4/SnO2 nanocubes were firstly prepared from CoSn(OH)6 precursor via a sintering and oxidation process in an air atmosphere.Subsequently,glucose was coated on Co3O4/SnO2 nanocubes,and then the composites were sintered under a reduction atmosphere to form CoSn2/Sn@C nanocubes with a core−shell structure.The CoSn2/Sn@C nanocubes exhibited shortened ion transport paths and excellent reaction kinetics due to their well-designed structures and controlled compositions.The electrochemical test results show that an excellent specific capacity of 672.2 mA·h/g after 500 cycles at a current density of 1 A/g was maintained for CoSn2/Sn@C electrode.The core−shell structure design of the elaborated CoSn2/Sn@C nanocubes holds significant implications for the development of high-performance anode materials for LIBs. 展开更多
关键词 lithium-ion batteries anode materials core−shell structure nanocube CoSn2/Sn@C composite electrochemical properties
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Energy‑Based Physics‑Informed Neural Network for Linear Elastic Analysis of Multi‑patch Plate and Shell Structures 认领 引用
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作者 GUO Boyu CHEN Yuhang +2 位作者 QIU Hao XU Xianhua GUO Yujie 《Transactions of Nanjing University of Aeronautics and Astronautics》 EI CSCD 2026年第3期463-474,共12页
Machine learning provides a fast and accurate tool for the prediction of a physical model.In this paper,a machine learning framework based on the physics-informed neural network(PINN)was established to predict the lin... Machine learning provides a fast and accurate tool for the prediction of a physical model.In this paper,a machine learning framework based on the physics-informed neural network(PINN)was established to predict the linear elastic static deformation of plate and shell structures.In contrast to the purely data-driven neural network,PINN incorporates the physical laws into the training process,thus reducing the required amount of data.The loss functions of the PINN are constructed based on the total potential energy functions of the thin-walled structure.Besides,the proposed PINN can be easily extended to shell structures with multiple patches by adding interface compatibility constraints into the loss function.The performance of the PINNs with the energy-based loss functions was evaluated with different shell structures and compared with the finite element results.Numerical examples show that the highly accurate results can be achieved based on the proposed framework which significantly reduces the amount of required training data compared to the data-driven neural network. 展开更多
关键词 physics-informed neural network(PINN) machine learning plate and shell structures total potential energy partial differential equations
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Boosting interfacial charge-transfer kinetics via core-shell MOF heterostructures with shared metal nodes 认领 引用
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作者 Weilai Yu 《Chinese Journal of Catalysis》 SCIE EI CAS CSCD 2025年第6期8-11,共4页
Artificial photosynthesis presents a sustainable and cost-effective approach to harnessing solar energy to produce value-added chemicals[1,2].In particular,the simultaneous photocatalytic conversion of CO2and H2... Artificial photosynthesis presents a sustainable and cost-effective approach to harnessing solar energy to produce value-added chemicals[1,2].In particular,the simultaneous photocatalytic conversion of CO2and H2O into formic acid(HCOOH)and hydrogen peroxide(H2O2)has emerged as a promising strategy to mitigate global warming driven by CO2emissions.HCOOH is a versatile chemical and hydrogen carrier,offering economic and practical advantages due to its compatibility with existing industrial processes and energy storage/conversion systems.Meanwhile,H2O2is among the world’s top 100 essential chemicals,with a global market valued at$4.0 billion in 2020 and projected to grow to$5.2 billion by 2026. 展开更多
关键词 interfacial charge transfer artificial photosynthesis mitigate global warming core shell formic acid hcooh photocatalytic conversion chemical hydrogen carrieroffering hydrogen peroxide h o
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Correction:Confining Li+Solvation in Core-Shell Metal-Organic Frameworks for Stable Lithium Metal Batteries at 100℃ 认领 引用
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作者 Minh Hai Nguyen Jeongmin Shin +3 位作者 Mee‑Ree Kim Quan Van Nguyen Jin-Hyeok Cha Sangbaek Park 《Nano-Micro Letters》 SCIE EI CAS CSCD 2026年第8期659-662,共4页
Correction to:Nano-Micro Lett.(2026)18:135 http://gffzzd3cc09b8251d45dfs0ffvx59owxnu6bfu.ffgz.tsg.suse.edu.cn/10.1007/s40820-025-01988-7 Following publication of the original article[1],the authors noticed that Fig.2 was published with an incorrect panel order,which d... Correction to:Nano-Micro Lett.(2026)18:135 http://gffzzd3cc09b8251d45dfs0ffvx59owxnu6bfu.ffgz.tsg.suse.edu.cn/10.1007/s40820-025-01988-7 Following publication of the original article[1],the authors noticed that Fig.2 was published with an incorrect panel order,which does not reflect the final intended version approved during the proof stage.As a result,the panel sequence in Fig.2 is inconsistent with the figure caption and manuscript text.This issue is limited strictly to the order and labeling of the figure panels.The experimental data,scientific interpretation,results,and conclusions of the paper remain completely unchanged. 展开更多
关键词 temperature lithium metal batteries solvation metal organic frameworks core shell structures stability
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CoSe2@MoS2core-shell nanocubes as highly efficient electrocatalysts for acidic and alkaline hydrogen evolution 认领 引用
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作者 Jun-Hui Cao Guang-Long Wang +6 位作者 Shu-Sen Hou Hu Zhou Chun Ouyang Long-Feng Lin Yan-Xin Qiao Yi-Shan Jiang Qi-Chao Zhang 《Journal of Iron and Steel Research International》 SCIE EI CSCD 2026年第6期56-67,共12页
CoCo-Prussian blue analogue nanocubes were firstly synthesized via a co-precipitation method and subsequently converted into CoSe2nanocubes through a high-temperature selenization.The core-shell-structured CoSe2... CoCo-Prussian blue analogue nanocubes were firstly synthesized via a co-precipitation method and subsequently converted into CoSe2nanocubes through a high-temperature selenization.The core-shell-structured CoSe2@MoS2electrocatalyst was then fabricated via a hydrothermal process.The resulting material exhibits outstanding hydrogen evolution reaction performances in both acidic and alkaline electrolytes,achieving overpotentials of 229 and 247 mV at the current density of 10 mA cm-2,respectively,with the corresponding Tafel slopes of 79 and 115 mV dec-1.Notably,the CoSe2@MoS2catalyst maintains a high catalytic activity after extended cycles.The enhanced catalytic activity and durability are primarily ascribed to the core-shell architecture,wherein MoS2nanosheets uniformly anchored on the surface of CoSe2nanocubes effectively suppress the self-agglomeration of MoS2nanosheets,thus providing abundant active sites. 展开更多
关键词 Electrocatalyst Hydrogen evolution CoSe2 MoS2 Core−shell structure
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Analysis of the electromechanical coupling characteristics of piezoelectric semiconductor PN junction shell structures 认领 引用 被引量：3
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作者 Tiqing WANG Feng ZHU +4 位作者 Peng LI Zelin XU Tingfeng MA I.KUZNETSOVA Zhenghua QIAN 《Applied Mathematics and Mechanics(English Edition)》 SCIE EI CSCD 2025年第6期1167-1186,共20页
Based on the nonlinear drift-diffusion(NLDD)model,the coupled behavior between the mechanical and electrical fields in piezoelectric semiconductor(PS)PN junctions under two typical loading conditions is investigated.T... Based on the nonlinear drift-diffusion(NLDD)model,the coupled behavior between the mechanical and electrical fields in piezoelectric semiconductor(PS)PN junctions under two typical loading conditions is investigated.The governing equations for the general shell structure of the PS PN junction are derived within the framework of virtual work principles and charge continuity conditions.The distributions of the electromechanical coupling field are obtained by the Fourier series expansion and the differential quadrature method(DQM),and the nonlinearity is addressed with the iterative method.Several numerical examples are presented to investigate the effects of mechanical loading on the charge carrier transport characteristics.It is found that the barrier height of the heterojunction can be effectively modulated by mechanical loading.Furthermore,a nonlinearity index is introduced to quantify the influence of nonlinearity in the model.It is noted that,when the concentration difference between the two sides is considerable,the nonlinear results differ significantly from the linear results,thereby necessitating the adoption of the NLDD model. 展开更多
关键词 piezoelectric semiconductor(PS) PN junction shell structures nonlinear drift-diffusion(NLDD)model potential barrier(well)
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One-dimensional ZnS-based Hetero-,Core/shell and Hierarchical Nanostructures 认领 引用 被引量：4
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作者 Ujjal K.Gautam Yoshio BANDO Dmitri GOLBERG 《Journal of Materials Science & Technology》 SCIE EI CAS 2008年第4期520-528,共9页
A focus of the current nanotechnology has shifted from routine fabrication of nanostructures to designing functional electronic devices and realizing their immense potentials for applications. Due to infusion of multi... A focus of the current nanotechnology has shifted from routine fabrication of nanostructures to designing functional electronic devices and realizing their immense potentials for applications. Due to infusion of multi-functionality into a single system, the utilization of hetero-, core/shell and hierarchical nanostructures has become the key issue for building such devices. ZnS, due to its direct wide bandgap, high index of refraction, high transparency in the visible range and intrinsic polarity, is one of the most useful semiconductors for a wide range of electronics applications. This article provides a dense review of the state-of-the-art research activities in one-dimensional （1D） ZnS-based hetero-, core/shell and hierarchical nanostructures. The particular emphasis is put on their syntheses and applications. 展开更多
关键词 Heterostructures Core/shell Hierarchical structures ZnS Nanodevices
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Synergistic enhancement of strength and plasticity in CoCrFeNiMn high-entropy alloys by novel core−shell microstructure design 认领 引用 被引量：1
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作者 Chong-yang LIU Xiao-song JIANG +2 位作者 Hong-liang SUN Zi-xuan WU Liu YANG 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2025年第10期3428-3442,共15页
The novel core−shell SiC@CoCrFeNiMn high-entropy alloy(HEA)matrix composites(SiC@HEA)were successfully prepared via mechanical ball milling and vacuum hot-pressing sintering(VHPS).After sintering,the microstructure wa... The novel core−shell SiC@CoCrFeNiMn high-entropy alloy(HEA)matrix composites(SiC@HEA)were successfully prepared via mechanical ball milling and vacuum hot-pressing sintering(VHPS).After sintering,the microstructure was composed of FCC solid solution,Cr23C6 carbide phases,and Mn2SiO4 oxy-silicon phase.The relative density,hardness,tensile strength,and elongation of SiC@HEA composites with 1.0 wt.%SiC were 98.5%,HV 358.0,712.3 MPa,and 36.2%,respectively.The core−shell structure had a significant deflecting effect on the cracks.This effect allowed the composites to effectively maintain the excellent plasticity of the matrix.As a result,the core−shell SiC@HEA composites obtained superior strength and plasticity with multiple mechanisms. 展开更多
关键词 high-entropy alloy SiC nanoparticles microstructure design core−shell structure tensile properties strength and plasticity synergy
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Bifunctional luminescent and magnetic core/shell type nanostructures Fe_3O_4@CeF_3:Tb3+/SiO_2 认领 引用 被引量：6
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作者 M.Runowski T.Grzyb S.Lis 《Journal of Rare Earths》 SCIE EI CAS CSCD 2011年第12期1117-1122,共6页
A facile co-precipitation and microemulsion methods were applied to obtain core/shell type nanoparticles. Cerium fluoride doped with terbittrn（Ⅲ） ions supplied intensive green luminescence of the system. Due to the... A facile co-precipitation and microemulsion methods were applied to obtain core/shell type nanoparticles. Cerium fluoride doped with terbittrn（Ⅲ） ions supplied intensive green luminescence of the system. Due to the presence of magnetite nanoparticles as cores, the prod- uct was highly sensitive to external magnetic field. Both sorts of nanostructures were encapsulated by silica shell. Such external layer of inert oxide can potentially increase the resistance of prepared nanostructttres to thermal oxidation, aggressive agents, changing ofpH or destructive radiation. Morphology of the product was examined using transmission electron microscopy （TEM）. Formations of the core/shell type nanostructures were clearly seen in the TEM pictures. Powder X-ray diffraction （XRD） confirmed the structure of the products, their nanocrystallinity and amorphous nature of silica shell. Optical properties were investigated by measuring excitation and emission spectra. Such multifunctional luminescent and magnetic nanoparticles coated with easily functionalized silica shell could be applied in many field of science. 展开更多
关键词 bifunctional nanoparticles magnetic nanoparticles luminescence core/shell rare earths
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Micro-network strengthened Ti6Al4V composites synthesized using core-shell structured composite powders for achieving superior strength and ductility 认领 引用 被引量：1
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作者 Wei Shang Guo-Peng Wang +7 位作者 Jun-Jie Xu Xiang Li Xue-Zhe Zhang Yong-Qing Fu Ahmed Elmarakbi Shan-Na Xu Yu-Sheng Zhang Long-Long Dong 《Rare Metals》 SCIE EI CAS CSCD 2025年第5期3582-3590,共9页
Synergistically and simultaneously enhancing strength and ductility has been a major challenge for the development and applications of titanium matrix composites.Herein,a new design methodology for Ti2Cu/Ti6Al4V... Synergistically and simultaneously enhancing strength and ductility has been a major challenge for the development and applications of titanium matrix composites.Herein,a new design methodology for Ti2Cu/Ti6Al4V composites with superior strength and ductility is reported. 展开更多
关键词 titanium matrix compositeshereina design methodology ductility strength enhancing strength ductility micro network Ti Al V core shell
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Preparation and characterization of cross-linked β-cyclodextrin polymer/Fe_3O_4 composite nanoparticles with core-shell structures 认领 引用 被引量：7
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作者 Rui Xue Li Shu Mei Liu +2 位作者 Jian Qing Zhao Hideyuki Otsuka Atsushi Takahara 《Chinese Chemical Letters》 SCIE CAS CSCD 2011年第2期217-220,共4页
Cross-linkedβ-cyclodextrin polymer/Fe3O4 composite nanoparticles with core-shell structures were prepared via cross linking reaction on the surface of carboxymethylβ-cyclodextrin（CM-β-CD） modified Fe3O4 nanoparti... Cross-linkedβ-cyclodextrin polymer/Fe3O4 composite nanoparticles with core-shell structures were prepared via cross linking reaction on the surface of carboxymethylβ-cyclodextrin（CM-β-CD） modified Fe3O4 nanoparticles inβ-cyclodextrin alkaline solution by using epichlorohydrin as crosslinking agent.The morphology,structure and magnetic properties of the prepared composite nanoparticles were investigated by transmission electron microscopy（TEM）,Fourier transform infrared（FTIR） spectrometry,X-ray diffraction（XRD） measurement,thermogravimetric analysis（TGA） and Vibrating sample magnetometry （VSM）,respectively. 展开更多
关键词 Cross-linkedβ-cyclodextrin polymer Fe3O4 nanoparticles Composite nanoparticles Core-shell structures
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Effect of elastic strain energy on the core-shell structures of the precipitates in Al-Sc-Er alloys 认领 引用 被引量：3
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作者 陈思成 李长荣 +2 位作者 连广丽 郭翠萍 杜振民 《Journal of Rare Earths》 SCIE EI CAS CSCD 2012年第12期1276-1280,共5页
The effect of the elastic strain energy on the core-shell structures was studied in an Al-0.06Sc-0.02Er （at.%） alloy. A theoretical model for the calculation of the elastic strain energy caused by core-shell precipi... The effect of the elastic strain energy on the core-shell structures was studied in an Al-0.06Sc-0.02Er （at.%） alloy. A theoretical model for the calculation of the elastic strain energy caused by core-shell precipitates, which is applicable to materials with weak elastic anisotropy, was adopted. It was demonstrated that the partitioning of Er to the precipitate core did not reduce the elastic strain energy as expected in the previous study. The resistance due to the elastic strain energy to form an Al3（Sc0.36Ero.64）-Al3（Sc0.8Er0.2） core-shell precipitate was quite small, and could be easily overcome by the decrease of the total interracial energy, which was consistent with the previous experimental results. On the other hand, the resistance due to the elastic strain energy to form an Al3Er-Al3Sc core-shell precipitate was much larger than that to form an Al3（Sc0.36Er0.64）-Al3（Sc0.8Er0.2） core-shell precipitate, thus the partitioning of all the Er atoms to the core was strongly hindered by the elastic strain energy and was not observed in the experiment of the previous study. 展开更多
关键词 aluminum alloys precipitation core-shell structure elastic strain energy rare earths
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Gap-plasmon of Fe3O4@Ag Core-shell Nanostructures for Highly Enhanced Fluorescence Detection of Rhodamine B 认领 引用 被引量：5
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作者 王运佳 俎喜红 +2 位作者 易国斌 LUO Hongsheng HUANG Hailiang 《Journal of Wuhan University of Technology(Materials Science)》 SCIE EI CAS 2017年第2期264-271,共8页
A novel gap-plasmon of Fe3O4@Ag core-shell nanoparticles for surface enhanced fluorescence detection of Rhodamine B（RB） was developed. Fe3O4@Ag core-shell nanostructures with Ag shell and Fe3O4 core were synthetized... A novel gap-plasmon of Fe3O4@Ag core-shell nanoparticles for surface enhanced fluorescence detection of Rhodamine B（RB） was developed. Fe3O4@Ag core-shell nanostructures with Ag shell and Fe3O4 core were synthetized by self-assembled method with the assistance of 3-mercaptopropyl trimethoxy silane（MPTS）. To study the RB fluorescence enhanced by gap-plasmon, the fluorescence properties of RB on the substrates with different nanogap densities were systematically investigated, and the results showed that the fluorescence intensity of RB on Fe3O4@Ag core-shell NPs substrate was much stronger than that on bare glass substrate, and the fluorescence intensity was further improved by using multilayer Fe3O4@Ag core-shell NPs substrate which had higher nanogap density. Different from the mechanism that is based on the maximum overlap of the surface plasmon resonance（SPR） band and emission band, the mechanism of the fluorescence enhancement in our work is based on the localized surface plasmon（LSP） and the gap plasmon near-field coupling with the Fe3O4@Ag core-shell NPs. Besides, the detection limit obtained was as low as 1×10^（-7） mol/L, and the Fe3O4@Ag core-shell NPs substrate had high selectivity for RB fluorophores. It was demonstrated that the Fe3O4@Ag core-shell NPs substrate had activity, good stability, and selectivity for fluorescence detection of RB. And the detection of RB by the surface plasmon enhanced fluorescence was more convenient and rapid than the traditional detection methods in previous works. 展开更多
关键词 gap-plasmon self-assembled Fe3O4@Ag nanoparticles core-shell fluorescence enhancement
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Influence Mechanism of Liquid Level on Oil Tank Structures and Damage Risk Prevention Based on Shell Theory 认领 引用
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作者 Si-Kai Wang Ti-Cai Wang +3 位作者 Di-Fei Yi Jia Rui Peng-Fei Cao Hua-Ping Wang 《Structural Durability & Health Monitoring》 EI 2025年第6期1411-1432,共22页
As a key storage facility, the structural safety of large oil tanks is directly related to the stable operation of the energy system. The static pressure caused by the change of liquid level is one of the main loads i... As a key storage facility, the structural safety of large oil tanks is directly related to the stable operation of the energy system. The static pressure caused by the change of liquid level is one of the main loads in the service process of storage tanks, which determines the structural deformation and damage risk. To explore the structural deformation properties under the change of liquid levels and provide a theoretical basis for the prevention and control of damage risk, this paper systematically analyzes the mechanical response of storage tanks under the pressures induced by different liquid levels based on the shell theory. Combined with the finite element software COMSOL, the radial displacement and stress-strain distribution under different liquid levels are simulated to verify the accuracy and effectiveness of the proposed theoretical model. The increase in liquid level and radius aggravates the radial deformation and makes the risk point move up, while the increase in wall thickness can effectively reduce the deformation response. Suggestions on the monitoring zone and damage risk prevention measures have also been given to instruct the safe operation of oil tanks. The research provides theoretical support for the optimization design of storage tank structures, the construction of advanced structural health monitoring system and the prevention and control of damage risk. 展开更多
关键词 Tank structure shell theory deformation characteristics damage prevention measure structural optimization design
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Type-Ⅱ Core/Shell Nanowire Heterostructures and Their Photovoltaic Applications 认领 引用 被引量：5
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作者 Yiyan Cao Zhiming Wu +5 位作者 Jianchao Ni Waseem.A.Bhutto Jing Li Shuping Li Kai Huang Junyong Kang 《Nano-Micro Letters》 SCIE EI CAS 2012年第3期135-141,共7页
Nanowire-based photovoltaic devices have the advantages over planar devices in light absorption and charge transport and collection.Recently,a new strategy relying on type-Ⅱ band alignment has been proposed to facili... Nanowire-based photovoltaic devices have the advantages over planar devices in light absorption and charge transport and collection.Recently,a new strategy relying on type-Ⅱ band alignment has been proposed to facilitate efficient charge separation in core/shell nanowire solar cells.This paper reviews the type-Ⅱ heterojunction solar cells based on core/shell nanowire arrays,and specifically focuses on the progress of theoretical design and fabrication of type-Ⅱ Zn O/Zn Se core/shell nanowire-based solar cells.A strong photoresponse associated with the type-Ⅱ interfacial transition exhibits a threshold of 1.6 e V,which demonstrates the feasibility and great potential for exploring all-inorganic versions of type-Ⅱ heterojunction solar cells using wide bandgap semiconductors.Future prospects in this area are also outlooked. 展开更多
关键词 Type-Ⅱ heterostructures Core/shell nanowire solar cell ZnO/ZnSe
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Understanding the growth mechanisms of metal-based core–shell nanostructures revealed by in situ liquid cell transmission electron microscopy 认领 引用 被引量：2
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作者 Junyu Zhang Bensheng Xiao +7 位作者 Junhui Zhao Miao Li Haichen Lin Zewen Kang Xianwen Wu Haodong Liu Dong-Liang Peng Qiaobao Zhang 《Journal of Energy Chemistry》 SCIE EI CAS CSCD 2022年第8期370-383,I0010,共14页
Metal-based core-shell nanostructures have garnered enduring interest due to their unique properties and functionalities.However,their growth and transformation mechanisms in liquid media remain largely unknown becaus... Metal-based core-shell nanostructures have garnered enduring interest due to their unique properties and functionalities.However,their growth and transformation mechanisms in liquid media remain largely unknown because they lack direct observation of the dynamic growth process with high spatial and temporal resolution.Developing the in situ liquid cell transmission electron microscopy(TEM)technique offers unprecedented real-time imaging and spectroscopy capabilities to directly track the evolution of structural and chemical transformation of metal-based core–shell nanostructures in liquid media under their working condition.Here,this review highlights recent progress in utilizing in situ liquid cell TEM characterization technique in investigating the dynamic evolution of material structure and morphology of metal-based core–shell nanostructures at the nano/atomic scale in real-time.A brief introduction of the development of liquid cells for in situ TEM is first given.Subsequently,recent advances in in situ liquid cell TEM for the fundamental study of growth mechanisms of metal based core–shell nanostructures are discussed.Finally,the challenge and future developments of metalbased core–shell nanostructures for in situ liquid cell TEM are proposed.Our review is anticipated to inspire ongoing interest in revealing unseen growth dynamics of core–shell nanostructures by in situ liquid cell TEM technique. 展开更多
关键词 In situ liquid cell TEM Metal-based core–shell nanostructures Growth mechanisms
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Facile in situ synthesis and characterization of Fe@Si/zeolite Na composites with magnetic core–shell structures from natural materials for enhanced curcumin loading capacity 认领 引用
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作者 Munasir Nasir Nuhaa Faaizatunnisa +2 位作者 Muhammad Naufal Ariesta Lydia Rohmawati Rifqi Aulia Nurazizah 《Nanotechnology and Precision Engineering》 EI CAS CSCD 2024年第2期69-86,共18页
Curcumin is a natural polyphenol that is used in various traditional medicines.However,its inherent properties,such as its rapid degradation and metabolism,low bioavailability,and short half-life,are serious problems ... Curcumin is a natural polyphenol that is used in various traditional medicines.However,its inherent properties,such as its rapid degradation and metabolism,low bioavailability,and short half-life,are serious problems that must be resolved.To this end,a drug carrier incorporating natural magnetic cores in a zeolite framework was developed and applied to the loading of curcumin in ethanol solutions.In this system,curcumin is encapsulated in a zeolite Na(ZNA)magnetic core–shell structure(Fe@Si/ZNA),which can be easily synthesized using an in situ method.Synthesis of Fe3O4 nanoparticles was carried out from natural materials using a co-precipitation method.Analysis of the prepared magnetic core–shell structures and composites was carried out using vibrating-sample magnetometery,Fourier transform infrared spectroscopy,transmission electron microscopy,and x-ray diffraction.The cumulative loading of curcumin in the ZNA composite with 9%nanoparticles was found to reach 90.70%with a relatively long half-life of 32.49 min.Stability tests of curcumin loading in the composite showed that adding magnetic particles to the zeolite framework also increased the stability of the composite structure.Adsorption kinetics and isotherm studies also found that the system follows the pseudo-second-order and Langmuir isotherm models. 展开更多
关键词 Zeolite Na Magnetic core–shell nanoparticles(MNPs) ZNA Adsorption Curcumin
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