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Recent advances in bismuth-based multimetal oxide photocatalysts for hydrogen production from water splitting:Competitiveness,challenges,and future perspectives

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materials Reports(Energy) 2021年第2期1卷 22-34页

作者： Zheng Zhu Shipeng Wan Yunxia Zhao Yaxin Gu Yaobin Wang Yong Qin Zhihui Zhang Xinlei Ge Qin Zhong Yunfei Bu Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology(CICAEET) Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control(AEMPC)UNIST-NUIST Research Center of Environment and Energy(UNNU)School of Environmental Science and TechnologyNanjing University of Information Science and Technology(NUIST)210044PR China School of Chemical and Engineering Nanjing University of Science and TechnologyNanjing210094PR China Jiangsu Key Laboratory of Advanced Materials and Technology School of Petrochemical EngineeringChangzhou UniversityChangzhouJiangsu213164PR China Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Changzhou UniversityChangzhou213164PR China

The efficient utilization of photocatalytic technology is essential for clean ***-based multimetal oxides(Bi_(2)WO_(6),Bi_(2)MoO_(6),BiVO_(4)and Bi_(4)Ti_(3)O_(12))have aroused widespread attention as a visible light responsive photocatalyst for hydrogen evolution due to their low cost,nontoxicity,modifiable morphology,and outstanding optical and chemical ***,the photocatalytic activities of pure materials are unsatisfactory because of their relative small specific surface area,poor quantum yield,and the rapid recombination of photogenerated ***,some modification strategies,including morphological control,semiconductor combination,doping,and defect engineering,have been systematically studied to enhance photocatalytic H_(2)evolution activity in the past few ***,we summarize the recent research progress on bismuth-based photocatalysts,pointing out the prospects,opportunities and challenges of bismuth-based ***,we aims to put forward valuable suggestions for designing of bismuth-based photocatalysts applied in hydrogen production on the premise of consolidating the existing theoretical basis of photocatalysis.

关键词： Bi_(2)WO_(6) Bi_(2)MoO_(6) BiVO_(4) Bi_(4)Ti_(3)O_(12) Morphological control Semiconductor combination Heterojunction Doping Defect Hydrogen production

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Cobalt-embedded few-layered carbon nanosheets toward enhanced hydrogen evolution:Rational design and insight into structure-performance correlation

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Journal of Energy Chemistry 2021年第7期30卷 156-161页

作者： Liwen Xing Hongyi Gao Dandan Jia Xiao Chen Mengyi Han Junjun Lv Ang Li Ge Wang Xingtian Shu Beijing Advanced Innovation Center for Materials Genome Engineering Beijing Key Laboratory of Function Materials for Molecule&Structure ConstructionSchool of Materials Science and EngineeringUniversity of Science and Technology Beijing30 Xueyuan RoadBeijing 100083China Research Institute of Petroleum Processing SINOPECBeijing 100083China Institute of Advanced Materials Beijing Normal UniversityBeijing 100875China School of Chemistry Biology and Materials Engineering Suzhou University of Science and TechnologySuzhou 215009JiangsuChina Shunde Graduate School University of Science and Technology BeijingFoshan 528399GuangdongChina

Over the past decades, the energy and concomitant environment issues, such as energy shortage, air pollution and global warming, have been becoming increasingly striking world-wide challenges [1,2]. Such a dilemma in ... 详细信息

关键词： Electrocatalyst Metal-organic frameworks Carbon nanosheets Hydrogen evolution reaction Structure-performance correlation

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Optimization and Parameter Investigation of the Planar Photocatalytic Microreactor

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SSRN 2024年

作者： Chen, Yukai Wang, Ruizhe Dong, Rulin Kou, Jiahui Lu, Chunhua Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology Department of Petrochemical Engineering Changzhou University Changzhou213164 China State Key Laboratory of Materials-Oriented Chemical Engineering College of Materials Science and Engineering Nanjing Tech University Nanjing210009 China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech University Nanjing210009 China Nanjing Tech University Nanjing210009 China

The microreactor could break the limitation of mass transfer and photon transfer in photocatalysis. Through a facile assemble method, a planar photocatalytic microreactor was constructed to fit most photocatalysts regardless of their strict preparation method. This microreactor exhibits a 2.41-fold efficiency compared with a bulk reactor. Parameters affect the photocatalytic performance were discussed in detail by experiment and calculation. Diffusion rate is the main bottleneck in a planar microreactor under laminar flow. The microreactor with lower height shows higher efficiency owing to faster mass transfer while the length and width affect slightly. Elevating the light power density provides a diminishing benefit. Faster flow speed reduces the apparent degradation percent but raises the chemical reaction rate in fact. The reaction rate raises to 9.31 times by reducing the height from 500 to 100 μm and grows another 1.76 times by adding the flow speed from 10 to 40 mL/h. This work illustrates the influence of parameters to planar photocatalytic microreactors and offers a promising prospect for large-volume photocatalytic water treatment. © 2024, The Authors. All rights reserved.

关键词： Photocatalysis

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A Strong and Rigid Coordination Adaptable Network that Can Be Reprocessed and Recycled at Mild Conditions

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CCS Chemistry 2022年第12期4卷 3781-3797页

作者： Wen Li Hong-Qin Wang Wen-Tong Gao Zhangxia Wang Pan Xu Haibo Ma Cheng-Hui Li State Key Laboratory of Coordination Chemistry School of Chemistry and Chemical EngineeringCollaborative Innovation Center of Advanced MicrostructuresNanjing UniversityNanjing 210023 School of Materials Science and Engineering Nanjing Institute of TechnologyNanjing 211167 Jiangsu Key Laboratory of Vehicle Emissions Control School of Chemistry and Chemical EngineeringNanjing UniversityNanjing 210023

The investigation of covalent adaptable networks(CANs)is expanding rapidly due to the growing demand for sustainable materials,as CANs show thermoset-like behavior and yet can be reprocessed,recycled,and ***,most of the CANs reported so far have a trade-off between mechanical strength and reversible properties and often show performance reduction after reprocessing and/or ***,we designed and synthesized a coordination adaptable network(CoAN)by crosslinking low-molecular-weight monomers with abundant coordination *** to its excellent variable-stiffness property,leading to high stiffness at ambient conditions and low viscosity at elevated temperature,the as-prepared CoAN showed high mechanical rigidity but could be reprocessed rapidly and recycled at mild *** reprocessing or recycling,the mechanical properties of the samples showed no performance reduction,compared with a pristine *** functional theory calculations showed that free thiol ligands played a key role in reducing the activation energy for bond *** used as binders for composites,the embedded carbon fibers could be recycled rapidly and still maintain the original *** material also showed temperature-sensitive dielectric and conductive properties due to the release of metal ions upon ***,such performances are superior among the CANs reported previously.

关键词： covalent adaptable networks coordination bond recycle reprocess self-healing

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High thermoelectric and mechanical performance in the n-type polycrystalline SnSe incorporated with multi-walled carbon nanotubes

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Journal of materials Science & technology 2022年第19期114卷 55-61页

作者： Xin-Yu Mao Xiao-Lei Shi Liang-Chuang Zhai Wei-Di Liu Yue-Xing Chen Han Gao Meng Li De-Zhuang Wang Hao Wu Zhuang-Hao Zheng Yi-Feng Wang Qingfeng Liu Zhi-Gang Chen State Key Laboratory of Materials-Oriented Chemical Engineering College of Chemical EngineeringNanjing Tech UniversityNanjing 211816China Centre for Future Materials University of Southern QueenslandSpringfield CentralBrisbane4300Australia School of Chemistry and Physics Queensland University of TechnologyBrisbaneQLD 4000Australia Australian Institute for Bioengineering and Nanotechnology The University of QueenslandBrisbaneQLD 4072Australia Shenzhen Key Laboratory of Advanced Thin Films and Applications Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong ProvinceCollege of Physics and Optoelectronic EngineeringShenzhen UniversityShenzhen 518060China Key Laboratory of Material Physics of Ministry of Education School of Physics and MicroelectronicsZhengzhou UniversityZhengzhou 450052China School of Mechanical and Mining Engineering The University of QueenslandSt LuciaBrisbaneQLD 4072Australia College of Materials Science and Engineering Nanjing Tech UniversityNanjing 211816China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech UniversityNanjing 211816China CAS Key Laboratory of Carbon Materials Institute of Coal ChemistryChinese Academy of SciencesTaiyuan 030001China

In this study,we introduce multi-walled carbon nanotubes(MWCNTs)in Pb/I co-doped n-type polycrys-tal SnSe to simultaneously improve its thermoelectric and mechanical properties for the first *** introduced MWCNTs act as the“bridges”to accelerate the electron carrier transport between SnSe grains,leading to significantly increased electrical conductivity from 32.6 to 45.7 S cm^(−1) at 773 K,which con-tributes to an enhanced power factor of∼5.0μW cm^(−1) K^(−2) at this *** MWCNTs possess high intrinsic thermal conductivities,these MWCNTs,acting as nanoinclusions in the SnSe matrix to form the dense interfaces between SnSe and MWCNTs,provide extra heat-carrying phonon scattering centers,leading to a slightly reduced lattice thermal conductivity of only 0.34 W m^(−1) K^(−2) at 773 K and in turn,a high ZT of∼1.0 at this ***,the introduced MWCNTs can simultane-ously act as the“binders”to bond adjacent grains,significantly improving the mechanical properties of SnSe by boosting its Vickers hardness from 39.5 to *** work indicates that our facile approach can achieve high thermoelectric and mechanical properties in n-type SnSe polycrystals with a considerable potential for applying to thermoelectric devices as n-type elements.

关键词： Thermoelectric property SnSe N-type Multi-walled carbon nanotubes Mechanical property

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Applications of MXenes in human-like sensors and actuators

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Nano Research 2023年第4期16卷 5767-5795页

作者： Jinbo Pang Songang Peng Chongyang Hou Xiao Wang Ting Wang Yu Cao Weijia Zhou Ding Sun Kai Wang Mark H.Rümmeli Gianaurelio Cuniberti Hong Liu Institute for Advanced Interdisciplinary Research(iAIR) Collaborative Innovation Center of Technology and Equipment for Biological Diagnosis and Therapy in Universities of ShandongUniversity of JinanJinan 250022China Institute for Materials Science and Max Bergmann Center of Biomaterials Technische Universität DresdenDresden 01069Germany Center for Advancing Electronics Dresden Technische Universität DresdenDresden 01069Germany Dresden Center for Computational Materials Science Technische Universität DresdenDresden 01062Germany Dresden Center for Intelligent Materials(GCL DCIM) Technische Universität DresdenDresden 01062Germany High-Frequency High-Voltage Device and Integrated Circuits R&D Center Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Key Laboratory of Microelectronic Devices&Integrated Technology Institute of MicroelectronicsChinese Academy of SciencesBeijing 100029China Shenzhen Key Laboratory of Nanobiomechanics Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China State Key Laboratory of Biobased Material and Green Papermaking Qilu University of TechnologyShandong Academy of SciencesJinan 250353China School of Bioengineering Qilu University of TechnologyShandong Academy of ScienceJinan 250353China Key Laboratory of Modern Power System Simulation and Control&Renewable Energy Technology(Ministry of Education) Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Northeast Electric Power UniversityJilin 132012China School of Electrical Engineering Weihai Innovation Research InstituteQingdao UniversityQingdao 266000China School of Electrical and Computer Engineering Jilin Jianzhu UniversityChangchun 130118China Institute for Complex Materials Leibniz Institute for Solid State and Materials Research Dresden(IFW Dresden)20 Helmholtz StrasseDresden 01069Germany College of Energy Soochow Institute for Energy and Materials Innovations Soochow UniversitySuzhou 215006China Key L

Human beings perceive the world through the senses of sight,hearing,smell,taste,touch,space,and *** first five senses are prerequisites for people to *** sensing organs upload information to the nervous systems,including the brain,for interpreting the surrounding ***,the brain sends commands to muscles reflexively to react to stimuli,including light,gas,chemicals,sound,and ***,as an emerging two-dimensional material,has been intensively adopted in the applications of various sensors and *** this review,we update the sensors to mimic five primary senses and actuators for stimulating muscles,which employ MXene-based film,membrane,and composite with other functional ***,a brief introduction is delivered for the structure,properties,and synthesis methods of ***,we feed the readers the recent reports on the MXene-derived image sensors as artificial retinas,gas sensors,chemical biosensors,acoustic devices,and tactile sensors for electronic ***,the actuators of MXene-based composite are ***,future opportunities are given to MXene research based on the requirements of artificial intelligence and humanoid robot,which may induce prospects in accompanying healthcare and biomedical engineering applications.

关键词： MXenes sensors actuators gas sensors biosensors tactile sensors sound sensors artificial retina

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Universal inverse electrocaloric effect in perovskites

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Physical Review B 2023年第18期107卷 184105-184105页

作者： Xingyue Ma Mingxing Chen Jun-Ming Liu Di Wu Yurong Yang National Laboratory of Solid State Microstructures and Collaborative Innovation Center of Advanced Microstructures Nanjing University Nanjing 210093 China Jiangsu Key Laboratory of Artificial Functional Materials Department of Materials Science and Engineering Nanjing University Nanjing 210093 China School of Physics and Electronics Hunan Normal University Key Laboratory for Matter Microstructure and Function of Hunan Province Key Laboratory of Low-Dimensional Quantum Structures and Quantum Control of Ministry of Education Changsha 410081 People's Republic of China

The electrocaloric effect (ECE) offers a promising alternative to the traditional gas compressing refrigeration due to its high efficiency and environmental friendliness. The unusual inverse (negative) electrocaloric effect refers to the adiabatic temperature drops due to the application of electric field, in contrast with the normal (positive) ECE, and provides ways to reach a larger temperature span in refrigeration cycles by combining the normal and inverse ECE. However, the inverse ECE is unusual and requires a clear understanding of microscopic mechanisms. Here, we found the unexpected and extensive inverse ECE in nonpolar orthorhombic, tetragonal, and cubic phases of halide and oxide perovskite at a wide temperature range by means of first-principle-based large-scale Monte Carlo methods. Such an unexpected inverse ECE originates from the octahedral tilting related entropy change rather than the polarization entropy change under the application of electric field. Furthermore, a giant inverse ECE with temperature change of 8.6 K is found at room temperature. This giant and extensive inverse ECE in perovskite opens up a new horizon in the research of caloric effects and broadens the electrocaloric refrigeration ways with high efficiency.

关键词： Electrocaloric effect Entropy Percolation Perovskites Hybrid Monte Carlo algorithm

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Developing Homojunction Exciplex For Efficient Multilayer Solution-Processed Organic Light Emitting Diodes

SSRN

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SSRN 2022年

作者： Ban, Xinxin Zhou, Tao Zhang, Kaizhi Cao, Qingpeng Ge, Fengjie Zhang, Dongen Zhu, Peng Liu, Zunzheng Liu, Zimin Jiang, Wei School of Environmental and Chemical Engineering Jiangsu Key Laboratory of Function Control Technology for Advanced Materials Jiangsu Ocean University Jiangsu Lianyungang222005 China School of Chemistry and Chemical Engineering Southeast University Jiangsu Nanjing211189 China

Exciplex has long been recognized as a mixture of donor and acceptor components. Here, for the first time, it was demonstrated that exciplex emission can also be achieved by single pure molecule, we named it as homojunction exciplex (ho-exciplex). By using the flexible alkyl chain to link the donor and acceptor unit, the result compound not only maintain efficient exciplex emission property, but also eliminate the notorious phase separation drawback. Different from the conventional heterojunction exciplex (he-exciplex), such unique molecular concept of homojunction system will provides a bright avenue toward structure-simplified and high-stable OLEDs without sophisticated stoichiometric and physical blending process. By using such a single molecular PhTRZ-CzTPA as both emitter and host, the solution-processed device achieved a comparable electroluminescence performance with its hybrid blending he-exciplex counterpart. Importantly, the unified molecule of PhTRZ-CzTPA makes it superior solvent resistance to isopropanol, which enable the fabrication of fully-solution-processed device with all spin-coated organic layers. Therefore, the homojunction strategy will open a new avenue for exciplex design and application, not only in OLEDs, but also other semiconductor devices or sensors. © 2022, The Authors. All rights reserved.

关键词： Organic light emitting diodes (OLED)

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Constructing of non-precious metal-based NiCo bimetallic aerogel by thermal reduction of carbon species under elevated temperatures for efficient oxygen evolution reaction

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Journal of materials Science & technology 2026年 242卷 52-63页

作者： Yalei Zheng Yangxin Bai Jiaxin Lu Ke Yuan Xiaodong Wu Sheng Cui Xiaodong Shen Xiaobin Ma Jianjun Zhu College of Materials Science and Engineering Nanjing Tech University Nanjing 211816 China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech University Nanjing 211816 China State Key Laboratory of Materials-Oriented Chemical Engineering College of Materials Science and Engineering Nanjing Tech University Nanjing 211816 China Nantong SHIRE Electric Technology Co. Ltd Nantong 226500 China

Hydrogen and oxygen, as renewable secondary energy sources, are assuming an increasingly significant role in mitigating fossil energy consumption and diminishing environmental pollution. The development of oxygen evolution reaction (OER) electrocatalysts in the anode with low-cost, highly efficient, and stable properties remains a big challenge, where the non-precious metal aerogel-based electrocatalyst with exposed active sites and diffusion channels has attracted much attention. However, the metal aerogel is conventionally prepared using chemical reduction agents, such as NaBH 4 , Glyoxylic acid monohydrate, and lithium aluminum hydride, etc., yet the reaction is dramatic and unsafety, therefore limiting its industrialization. Herein, a novel NiCo aerogel catalyst is obtained from carbon reduction derived from phthalic acid under high temperature via the oxide-based aerogel, which is formed under the crosslink reaction derived by propylene epoxide, combined with the polyacrylic acid template. The NiCo aerogel catalyst shows a typical three-dimensional porous structure, with a large Brunauer–Emmett–Teller (BET) specific surface area of 227.84 m 2 g −1 . The alloy aerogel displays excellent OER activity with an overpotential of 330 mV at a current density of 10 mA cm −2 , a low Tafel slope of 69.50 mV dec −1 , and a long-term stability of at least 72,000 s, exceeding the commercial RuO 2 catalyst. The NiCo bimetallic aerogel can be easily transformed into the NiCo-layered double hydroxide (LDH) structure. The density functional theory (DFT) calculations reveal that the formation of the LDH structure can increase the adsorption strength of *OOH as compared with the pristine NiCo alloy, and thus enhances the OER performance. Moreover, the outstanding OER catalytic properties can be ascribed to the synergetic effect of the hierarchical porous structure, accelerating the diffusion of intermediate and exposed active sites, high electrical conductivity derived from the po

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Nano-Turbostratic Carbon-Decorated Sioc Ceramic Aerogels with Ultra-Broadband Electromagnetic Wave Absorption Properties

SSRN

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SSRN 2023年

作者： Zhang, Jianhao Zou, Jian Li, Quan Wang, Yang Cui, Sheng Yang, Jian Li, Jianping College of Materials Science and Engineering Nanjing Tech University Jiangsu Province Nanjing211816 China Jiangsu Collaborative Innovation Center for Advanced Inorganic Function Composites Nanjing Tech University Jiangsu Province Nanjing211816 China The State Key Laboratory of Refractories and Metallurgy Institute of Advanced Materials and Nanotechnology Wuhan University of Science and Technology Wuhan430081 China

As thermal insulation-electromagnetic wave absorption (EMA) integrated materials, ceramic aerogels’ thermal properties have been extensively investigated, whereas their EMA properties have not. In this work, nano-turbostratic carbon-decorated SiOC ceramic aerogels were fabricated by pyrolyzing polysiloxane modified with divinylbenzene (DVB). Investigations were conducted into the effects of DVB content on the compositions, microstructures, and EMA properties of SiOC ceramic aerogels. Our research uncovered that SiOC ceramic aerogels contained ultrafine nano-turbostratic carbons (around 5 nm), resulting in abundant interface and defect polarizations. SiOC ceramic aerogels with excellent EMA properties at both small ( © 2023, The Authors. All rights reserved.

关键词： Carbon

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