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arXiv 2023年

作者： Yuan, Shuaijie Zhou, Xinxing Chen, Yu Zhong, Yuhan Sheng, Lijuan Hu, Hao Chen, Hongsheng Kaminer, Ido Lin, Xiao Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Synergetic Innovation Center for Quantum Effects and Applications School of Physics and Electronics Hunan Normal University Changsha410081 China International Collaborative Laboratory of 2D Materials for Optoelectronics Science and Technology Engineering Technology Research Center for 2D Material Information Function Devices and Systems of Guangdong Province Institute of Microscale Optoelectronics Shenzhen University Shenzhen518060 China Interdisciplinary Center for Quantum Information State Key Laboratory of Extreme Photonics Instrumentation ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang University Hangzhou310027 China International Joint Innovation Center The Electromagnetics Academy Zhejiang University Zhejiang University Haining314400 China School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore639798 Singapore Key Laboratory of Radar Imaging and Microwave Photonics Ministry of Education College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics Nanjing211106 China Key Lab. of Advanced Micro/Nano Electronic Devices & Smart Systems of Zhejiang Jinhua Institute of Zhejiang University Zhejiang University Jinhua321099 China Shaoxing Institute of Zhejiang University Zhejiang University Shaoxing312000 China Department of Electrical Engineering Technion-Israel Institute of Technology Haifa32000 Israel

Effective-medium theory pertains to the theoretical modelling of homogenization, which aims to replace an inhomogeneous structure of subwavelength-scale constituents with a homogeneous effective medium. The effective-medium theory is fundamental to various realms, including electromagnetics and material science, since it can largely decrease the complexity in the exploration of light-matter interactions by providing simple acceptable approximation. Generally, the effective-medium theory is thought to be applicable to any all-dielectric system with deep-subwavelength constituents, under the condition that the effective medium does not have a critical angle, at which the total internal reflection occurs. Here we reveal a fundamental breakdown of the effective-medium theory that can be applied in very general conditions: showing it for deep-subwavelength all-dielectric multilayers even without critical angle. Our finding relies on an exotic photonic spin Hall effect, which is shown to be ultra-sensitive to the stacking order of deep-subwavelength dielectric layers, since the spin-orbit interaction of light is dependent on slight phase accumulations during the wave propagation. Our results indicate that the photonic spin Hall effect could provide a promising and powerful tool for measuring structural defects for all-dielectric systems even in the extreme nanometer scale. Copyright © 2023, The Authors. All rights reserved.

关键词： Spin Hall effect

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Ordering Bimetallic Cu-Pd Catalysts onto Orderly Mesoporous SrTiO3-Crystal Nanotubular Networks for Efficient Carbon Dioxide Photoreduction

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Angewandte Chemie 2024年第30期136卷

作者： Dr. Fan Fang Jie Zhang Lijing Xiang Dr. Chong Chen Prof. Nengjie Feng Dr. Yanqi Lv Prof. Kun Chang Prof. Jun Huang Laboratory for Catalysis Engineering School of Chemical and Biomolecular Engineering & Sydney Nano Institute The University of Sydney Darlington New South Wales 2008 Australia College of Materials Science and Technology Nanjing University of Aeronautics and Astronautics Nanjing 210016 P. R. China State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical Engineering Jiangsu National Synergetic Innovation Center for Advanced Materials Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech University Nanjing 210009 P. R. China School of Management and Engineering Nanjing University Nanjing 210093 P. R. China

Artificial photosynthesis of fuels has garnered significant attention, with SrTiO 3 emerging as a potential candidate for photocatalysis due to its exceptional physicochemical properties. However, selectively converting CO 2 into fuels with desired reaction products remains a grand challenge. Herein, we design an updated method via an aging strategy based on the electrospinning technique to synthesize a single-crystalline Al-doped SrTiO 3 nanotubular networks with self-assembled orderly mesopores, further modified by Cu−Pd alloy. It exhibits both high crystallinity and superior cross-linked mesoporous structures, effectively facilitating charge carrier transfer, photon utilization, and mass transfer, with a remarkable enhancement from 0.025 mmol h −1 m −2 to 1.090 mmol h −1 m −2 in the CO production rate. Meanwhile, the ordered arrangement of Cu and Pd atoms on the (111) surface can promote the rate-determining step (*CO 2 to *COOH), which is also responsible for its good activity. The presence of CuO in the reaction confers a significant advantage for CO desorption, leading to a remarkable CO selectivity of 95.54 %. This work highlights new insights into developing advanced heterogeneous photocatalysts.

关键词： artificial photosynthesis Al-doped SrTiO3 nanotubular networks orderly mesopores CuPd alloy

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Fabrication of BiPO4 photocatalysts for different photodegradation of RhB

Fabrication of BiPO4 photocatalysts for different photodegra...

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中国化学会第十届全国无机化学学术会议

作者： Jie Wang XiuJuan Wu XinRan Ding YiHui Wang Diandian Liu DongEn Zhang Department of Chemical Engineering Huaihai Institute of Technology Jiangsu Key Laboratory of Function Control Technology for Advanced Materials School of Chemistry and Chemical Engineering Nanjing University

The three different morphologies BiPO nanocrystals（rods, spindles and spindle-like assembled nanosheets） were successfully synthesized by hydrothermal method. The as-prepared products were characterized using X-ray diffraction analysis, infrared analysis, scanning electron microscopy analysis and ultraviolet-visible diffuse reflectance analysis. XRD results show that BiPO samples presented monoclinic phase monazite structure, hexagonal phase + monoclinic phase and hexagonal phase + monoclinic phase monazite structure. The results showed that the BiPO has superior photocatalytic activity with the addition of SDS,and IPA, SO and BQ have been used to capture ·OH, h+ and ·O, respectively. Capture of ·OH and h+ in BiPO crystals clearly showed that ·OH and h+ played a major role in the photocatalytic proc

关键词： BiPO4 Hydrothermal synthesis Photocatalytic performance

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de Haas-van Alphen effect and the first-principles study of the possible topological stannide Cu3Sn

arXiv

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arXiv 2022年

作者： Liu, Chengxu Li, Bin Ge, Yongheng Jiao, Wen-He Xi, Chuanying Liu, Yi Xu, Chunqiang Lu, Qi Li, Yunlong Qiu, Hang-Qiang Zhu, Qin-Qing Ren, Zhi Zhu, Ziming Qian, Dong Ke, Xianglin Xu, Xiaofeng Key Laboratory of Quantum Precision Measurement of Zhejiang Province Department of Applied Physics Zhejiang University of Technology Hangzhou310023 China New Energy Technology Engineering Laboratory of Jiangsu Province School of Science Nanjing University of Posts and Telecommunications Nanjing210023 China Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Department of Physics Synergetic Innovation Center for Quantum Effects and Applications Hunan Normal University Changsha 410081 China Anhui Province Key Laboratory of Condensed Matter Physics at Extreme Conditions High Magnetic Field Laboratory Chinese Academy of Sciences Hefei230031 China School of Physics Key Laboratory of MEMS The Ministry of Education Southeast University Nanjing211189 China Department of Physics and Astronomy Michigan State University East LansingMI48824-2320 United States Shenyang National Laboratory for Materials Science School of Physics and Astronomy Shanghai Jiao Tong University Shanghai200240 China Department of Applied Physics Zhejiang University of Science and Technology Hangzhou310023 China Key Laboratory for Quantum Materials of Zhejiang Province School of Science Westlake University Hangzhou310024 China Institute of Natural Sciences Westlake Institute for Advanced Study Hangzhou310024 China Tsung-Dao Lee Institute Shanghai Jiao Tong University Shanghai200240 China

The quest for quantum materials with diverse symmetry-protected topological states has been the focus of recent research interest, primarily due to their fascinating physical properties and the potential technological utility. In this work, we report on the magnetotransport, de Haas-van Alphen (dHvA) oscillations, and the first-principles calculations of the stannide Cu3Sn that is isostructural with the recently reported topological semimetal Ag3Sn. The magnetoresistance was found to vary quasi-linearly in field. Clear dHvA oscillations were observed under a field as low as 1 Tesla at 2 K, with three major oscillation frequencies Fα=8.74 T, Fβ=150.19 T and Fγ=229.66 T and extremely small effective masses. The analysis of dHvA quantum oscillations revealed a possible nonzero Berry phase, suggestive of the nontrivial band topology. The corroborating evidence for the nontrivial electronic topology also comes from the first-principles calculations which yield a nonzero 2 topological index. These results collectively suggest that Cu3Sn, in analogy to its homologue Ag3Sn, may be another intermetallic stannide hosting topological Dirac fermions. Copyright © 2022, The Authors. All rights reserved.

关键词： Copper alloys

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Preparation and electro-catalytic of NiS2/FeS2/CC composites

Preparation and electro-catalytic of NiS2/FeS2/CC composites

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中国化学会第十届全国无机化学学术会议

作者：吴秀娟丁欣然王艺慧刘点点王洁 DongEn Zhang Department of Chemical Engineering Huaihai Institute of Technology Jiangsu Key Laboratory of Function Control Technology for Advanced Materials School of Chemistry and Chemical Engineering Nanjing University

In this paper, Ni（NO）·6HO was used as the nickel source, Fe（NO）3·9 HO as the iron source, thiourea as the sulfur source by hydrothermal method（the amount of thiourea was changed respectively to be 0.1 g, 0.15 g, 0.2 g, 0.25 g） to compound Fe-Ni alloy materials, and the composite products were loaded onto carbon cloth. It was found that when the amount of thiourea was 0.15 g, the composite has the best hydrogen evolution performance.

关键词： NiS2 FeS2 composite electrocatalytic hydrogen evolution

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Tunable localized surface plasmon resonance in Prussian blue analogues for enhanced photothermal-photocatalytic hydrogen evolution

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Chemical Engineering Journal 2025年

作者： Pengyu Hao Pengnian Shan Jun Luo Wanglin Xue Lijing Wang Bo Xiong Jianhua Hou Changyu Lu Guangzhao Wang Weilong Shi School of Water Resource and Environment Hebei Province Key Laboratory of Sustained Utilization & Development of Water Recourse Hebei GEO University Shijiazhuang 050031 PR China School of Material Science and Engineering Jiangsu University of Science and Technology Zhenjiang 212100 PR China Henan Engineering Center of New Energy Battery Materials College of Chemistry and Chemical Engineering Shangqiu Normal University Shangqiu 476000 China School of Chemistry and Materials Science Hubei Key Laboratory of Quality Control of Characteristic Fruits and Vegetables Hubei Engineering University Xiaogan 432000 China College of Environmental Science and Engineering Yangzhou University Yangzhou Jiangsu 225009 PR China Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing School of Electronic Information Engineering Yangtze Normal University Chongqing 408100 PR China

The appropriate development of photocatalysts with efficient photothermal effects to maximize the utilization of solar energy persists as a challenge in photocatalytic H 2 production. Under the guidance from predictions of density functional theory (DFT), a core-shell Ni Co PBAs@ZnIn 2 S 4 (denoted as NCPBAs@ZIS) S-scheme heterojunction with tunable localized surface plasmon resonance (LSPR) effect was designed and applied to photothermal-assisted photocatalytic H 2 production. Consequently, the optimized NCPBAs@ZIS-40 photocatalyst exhibited the optimal photocatalytic activity for H 2 production under simulated sunlight irradiation up to 18.04 mmol h −1  g −1 , accompanied by an apparent quantum efficiency (AQE) of 19.3% at 420 nm. This is attributed to the fact that the core-shell structure in the photocatalytic system not only enhances the specific surface area and broadens the light absorption, but also preserves the heat derived from the LSPR effect inside without dissipation. Meanwhile, the mechanism of interfacial carriers transfer in the S-scheme stimulates charges efficient spatial migration, and carriers of stiffer redox potentials are retained. This study is of significant value for the design of advanced Prussian blue analogues-based photothermal-assisted photocatalysts.

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Bulk diffusion: key factor of limiting the kinetics of CO2 capture on sodium carbonate 12

Bulk diffusion: Key factor of limiting the kinetics of CO2 c...

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12th Asia-Pacific Conference on Combustion, ASPACC 2019

作者： Cai, Tianyi Chen, Xiaoping Karl Johnson, J. Liu, Daoyin Ma, Jiliang Liang, Cai Wu, Ye Zhao, Chuanwen Key Laboratory of Energy Thermal Conversion and Control of Ministry of Education School of Energy and Environment Southeast University Nanjing Jiangsu210096 China Department of Chemical and Petroleum Engineering University of Pittsburgh Pittsburgh Pennsylvania15261 United States MIIT Key Laboratory of Thermal Control of Electronic Equipment and Advanced Combustion Laboratory School of Energy and Power Engineering Nanjing University of Science and Technology Nanjing Jiangsu210094 China Jiangsu Provincial Key Laboratory of Materials Cycling and Pollution Control School of Energy and Mechanical Engineering Nanjing Normal University Nanjing Jiangsu210042 China

Sodium carbonate (Na2CO3) is a competitive solid sorbent for CO2 capture from humid flue gas because of its high abundance, low energy consumption and no by-products. However, slow kinetics of sorption process limit this technology to be a practical option for large-scale power plants. The very first step to improve its kinetics is to understand the rate-limiting steps of the carbonation reaction in this gas-solid system. Two possible scenarios that could result in diffusion control of the reaction rate have been investigated, including counter diffusion of ion defects between NaHCO3/Na2CO3 layers (Scenario 1) and one-way diffusion of molecule in NaHCO3 layer (Scenario 2). The bicarbonate groups and proton formation on NaHCO3 surface was observed on picosecond time scales. We calculated the formation energies of H+ vacancy (VH+)/interstitial Na+ (INa+) in bulk NaHCO3 (0.03 eV) and interstitial H+ (IH+)/Na+ vacancy (VNa+) in bulk Na2CO3 (0.89 eV). The diffusion barriers of VH+ and INa+ in bulk NaHCO3 were 0.27 eV and 0.77 eV, respectively. We have also identified that CO2 diffusion in bulk NaHCO3 is much more energetically unfavorable. Our results indicate that Na2CO3 bulk carbonation reaction is followed by Scenario 1 and INa+ diffusion in bulk NaHCO3 is the rate-limiting step. © Asia-Pacific Conference on Combustion, ASPACC *** right reserved.

关键词： Carbon dioxide

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Porous SiC/melamine-derived carbon foam frameworks with excellent electromagnetic wave absorbing capacity

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Journal of advanced Ceramics 2019年第4期8卷 479-488页

作者： Xinli YE Zhaofeng CHEN Sufen AI Bin HOU Junxiong ZHANG Xiaohui LIANG Qianbo ZHOU Hezhou LIU Sheng CUI International Laboratory for Insulation and Energy Efficiency Materials College of Materials Science and TechnologyNanjing University of Aeronautics and AstronauticsNanjing 211106China Suzhou Superlong Aviation Heat Resistance Material Technology Co. Ltd.Suzhou 215400China Beijing Spacecrafts China Academy of Space TechnologyBeijing 100080China Department of Reactor Engineering China Institute of Atomic EnergyBeijing 102413China The State Key Lab of Metal Matrix Composites Shanghai Jiao Tong UniversityShanghai 200240China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech UniversityNanjing 211800China

Porous three-dimensional Si C/melamine-derived carbon foam(3 D-Si C/MDCF)composite with an original open pore structure was fabricated by the heat treatment of the commercial melamine foam(MF),carbonization of the stable MF,and chemical vapor deposition of the ultra-thin Si C *** electron microscopy(SEM)and X-ray diffraction(XRD)were employed to detect the microstructure and morphology of the as-prepared *** results indicated that the 3 D-Si C/MDCF composites with the coating structure were prepared *** obtained minimum reflection loss was–29.50 d B when the frequency and absorption thickness were 11.36 GHz and 1.75 mm,***,a novel strategy was put forward to state that the best microwave absorption property with a thin thickness of 1.65 mm was gained,where the minimum reflection loss was–24.51 d B and the frequency bandwidth was 3.08 *** excellent electromagnetic wave absorption ability resulted from the specific cladding structure,which could change the raw dielectric property to acquire excellent impedance *** present work had a certain extend reference meaning for the potential applications of the lightweight wave absorption materials with target functionalities.

关键词： three-dimensional SiC/melamine-derived carbon foam(3D-SiC/MDCF) chemical vapor deposition coating structure electromagnetic wave absorption characteristic minimum reflection loss

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Plasmon-Promoted Interatomic Hot Carriers Regulation Enhanced Electrocatalytic Nitrogen Reduction Reaction

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Angewandte Chemie 2024年第48期136卷

作者： Dr. Wenkai Liang Dr. Miao Xie Dr. Dong Li Wei Qin Chang Dai Yawen Wang Dr. Hao Zhang Bo Zhao Dr. Guangyao Jin Prof. Dr. Yinghui Sun Prof. Dr. Lin Jiang Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices Soochow University 215123 Suzhou China Nonequilibrium Chemical Physics TUM School of Natural Sciences Technical University of Munich 85748 Garching Germany Innovation Centre for Chemical Sciences College of Chemistry Chemical Engineering and Materials Science Soochow University 215123 Suzhou China Jinglan Advanced Material Co. Ltd. 214100 Wuxi China Key Laboratory of Science and Engineering for the Multi-modal Prevention and Control of Major Chronic Diseases Ministry of Industry and Information Technology 450000 Zhengzhou P. R. China

Utilizing hot carriers for efficient plasmon-mediated chemical reactions (PMCRs) to convert solar energy into secondary energy is one of the most feasible solutions to the global environmental and energy crisis. Finding a plasmonic heterogeneous nanostructure with a more efficient and reasonable hot carrier transport path without affecting the intrinsic plasmonic properties is still a major challenge that urgently needs to be solved in this field. Herein, the mechanism by which plasmon-promoted interatomic hot electron redistribution on the surface of Au 3 Cu alloy nanoparticles promotes the electrocatalytic nitrogen reduction reaction (ENRR) is successfully clarified. The localized surface plasmon resonance (LSPR) effect can boost the transfer of plasmon hot electrons from Au atoms to Cu atoms, trigger the interatomic electron regulation of Au 3 Cu alloy nanoparticles, enhance the desorption of ammonia molecules, and increase the ammonia yield by approximately 93.9 %. This work provides an important reference for rationally designing and utilizing the LSPR effect to efficiently regulate the distribution and mechanism of plasmon hot carriers on the surface of heterogeneous alloy nanostructures.

关键词： localized surface plasmon resonance (LSPR) hot carriers interatomic regulation electrocatalytic nitrogen reduction reaction (ENRR) alloy nanoparticles

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Symmetry-Breaking Strategy Yields Dopant-Free Small Molecule Hole Transport materials for Inorganic Perovskite Solar Cells with 20.58% Efficiency and Outstanding Stability

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Angewandte Chemie 2025年第23期137卷

作者： Huimin Cai Qiliang Zhu Tianchen Pan Lunbi Wu Xin Gu Chenghao Duan Liangbin Xiong Jiaying Wu Sha Liu Liyang Yu Ruipeng Li keyou Yan Ruijie Ma Shengjian Liu Tao Jia Gang Li School of Optoelectronic Engineering Guangdong Polytechnic Normal University Guangzhou 510665 P.R. China School of Environment and Energy State Key Laboratory of Luminescent Materials and Devices Guangdong Provincial Key Laboratory of Solid Wastes Pollution Control and Recycling South China University of Technology Guangzhou 510000 P.R. China Advanced Materials Thrust Function Hub The Hong Kong University of Science and Technology (Guangzhou) Nansha Guangzhou 511400 P.R. China Longzihu New Energy Laboratory School of Energy Science and Technology Henan University Zhengzhou 450000 P.R. China Dongguan Key Laboratory of Interdisciplinary Science for Advanced Materials and Large-Scale Scientific Facilities School of Physical Sciences Great Bay University Dongguan Guangdong 523000 P.R. China Research Institute of Frontier Science Southwest Jiaotong University Chengdu 610031 P.R. China School of Chemical Engineering Sichuan University Chengdu 610065 P.R. China National Synchrotron Light Source (NSLS II) Brookhaven National Laboratory Upton NY 11973 USA Department of Electrical and Electronic Engineering Research Institute for Smart Energy (RISE) Photonic Research Institute (PRI) Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices The Hong Kong Polytechnic University Hong Kong P.R. China School of Chemistry Guangzhou Key Laboratory of Materials for Energy Conversion and Storage Key Laboratory of Electronic Chemicals for Integrated Circuit Packaging South China Normal University (SCNU) Guangzhou 510006 P.R. China

Inorganic perovskites are known for their excellent photothermal stability; however, the photothermal stability of all-inorganic n-i-p perovskite solar cells (PSCs) is compromised due to ion diffusion and free radical-induced degradation caused by the use of doped spiro-OMeTAD hole transport materials (HTMs). In this study, two isomeric donor–acceptor–donor (D–A–D) type small molecules, namely HBT and HiBT, were developed and used as dopant-free HTMs, using 2,1,3-benzothiadiazole or benzo[ d ][1,2,3]thiadiazole as acceptor moieties. The HiBT molecule, with its symmetry-breaking features, exhibits a large dipole moment, enhanced coordination-active sites, and a well-aligned energy level structure, all of which contribute to passivating perovskite surface defects and improving free charge separation. As a result, inorganic CsPbI 3 PSCs with HiBT HTM achieved an impressive power conversion efficiency (PCE) of 20.58%, the highest reported for dopant-free HTM-based inorganic PSCs. Moreover, the enhanced hydrophobic properties of HiBT molecules, coupled with their ability to passivate perovskite surface defects, contribute to significantly improved device stability. The unencapsulated devices based on HiBT HTM retained over 83% and 80% of their initial efficiency after being stored at 85 °C for 50 days and undergoing maximum power point (MPP) tracking at 85 °C for 1100 h, respectively. These results highlight that the symmetry-breaking strategy is an exceptionally effective approach for designing efficient, dopant-free small molecule HTMs, significantly contributing to both the high efficiency and enhanced stability of all-inorganic PSCs.

关键词： Dopant-free Hole transport material Inorganic perovskite solar cell Small molecule Symmetry-breaking

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