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Electrolysis of Direct Seawater: Challenges,Strategies,and Future Prospects

Chinese Journal of Chemistry 2023年第23期41卷 3484-3492页

作者： Lin Hu Xiao Tan Xuhao Yang Kan Zhang School of Chemistry and Environmental Engineering Yancheng Teachers UniversityYanchengJiangsu224051 China MIIT Key Laboratory of Advanced Display Material and Devices College of Materials Science and EngineeringNanjing University of Science and TechnologyNanjingJiangsu210094 China

The use of renewable sources such as solar,ocean,geothermal,and wind energy to drive water electrolysis reactions to obtain green and clean hydrogen fuels is one of the important paths to achieve sustainable energy *** present,most water electrolysis technologies need to conduct corresponding pre-processing,such as diluting water sources and purifying dehydration,which will greatly increase operating *** development of direct seawater electrolytic process can effectively solve the above ***,we review the latest progress of the electrode materials and catalysts of the direct electrolysis process of seawater,and discuss how to design high activity and high-selective electrode materials for water electrolysis with familiar impurities (such as chloride,metal ions and biological organisms) existing in the future.

关键词： Electrocatalysis Water splitting Catalytic activity Oxygen evolution reaction Hydrogen evolution reaction

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Pulse Signal Acquisition Using Flexible Sensing Dense Array with High Spatial Resolution 38

Pulse Signal Acquisition Using Flexible Sensing Dense Array ...

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38th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2025

作者： He, Yue Sun, Ke Wang, Fang Tao, Tiger H Yang, Heng Sun, Yi Wang, Quan Li, Xinxin Jiangsu University Zhenjiang Key Laboratory of Advanced Sensing Materials and Devices Zhenjiang212013 China Shanghai Institute of Microsystem and Information Technology Chinese Academy of Sciences State Key Laboratory of Transducer Technology Shanghai200050 China

ISBN: (纸本)9798331508890

This paper reports a pressure sensing array with high spatial resolution, which, in combination with the proposed cross-sectional feature algorithm, enables measurements with a positional accuracy of at least 0.1 mm. For the first time in human pulse wave testing experiments, we have visualized the lateral offset of the pulse wave. In addition, we found that some people, such as patients with fever and pain, have slightly larger pulse wave offsets than others, which may be described as 'tight pulse' in traditional Chinese medicine (TCM). © 2025 IEEE.

关键词： Pressure transducers

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Mechanical enhancement and weakening in Mo_(6)S_(6)nanowire by twisting

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Chinese Physics B 2023年第4期32卷 534-542页

作者：徐克林演文石桥付越群杨毅张志森吴建洋 Department of Physics Research Institute for Biomimetics and Soft MatterJiujiang Research Institute and Fujian Provincial Key Laboratory for Soft Functional Materials ResearchXiamen UniversityXiamen 361005China Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology Jiangnan UniversityWuxi 214122China NTNU Nanomechanical Laboratory Norwegian University of Science and TechnologyTrondheim 7491Norway

The torsional,bending and tensile mechanical properties of Mo_(6)S_(6)nanowire are examined by molecular dynamics(MD)simulations with a first-principles-based reactive force field(ReaxFF).It is found that Mo_(6)S_(6)nanowire shows unique mechanical properties such as high torsional and bending flexibility,high Young's modulus and strength,and negative Poisson's *** Mo_(6)S_(6)nanowire can be strengthened or weakened via twisting,depending on the twist *** Mo_(6)S_(6)nanowire with a slight twist angle shows brittle failure,whereas it with a large twist angle exhibits ductile failure and necking *** Mo_(6)S_(6)nanowires show a crossover in the negative Poisson's ratio at critical strains,that is,Poisson's ratio first decreases but then increases,with a minimum value down to around-0.8 at the strain of 0.01 as the twist angle is 21.0°/*** negative Poisson's ratio and the crossover are explained by the bond transform that makes zero angles to the wire cross-section.

关键词： Mo_(6)S_(6)nanowire mechanical properties twisting negative Poisson's ratio

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Integrated Cross-Scale Manipulation and Modulable Encapsulation of Cell-Laden Hydrogel for Constructing Tissue-Mimicking Microstructures

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Research 2025年第1期2024卷 704-717页

作者： Yanfeng Zhao Xinyi Dong Yang Li Juan Cui Qing Shi Hen-Wei Huang Qiang Huang Huaping Wang Intelligent Robotics Institute School of Mechatronical EngineeringBeijing Institute of TechnologyBeijing 100081China Peking University First Hospital Xicheng DistrictBeijing 100034China Key Laboratory of Instrumentation Science and Dynamic Measurement Ministry of EducationNorth University of ChinaTaiyuan 030051China Beijing Advanced Innovation Center for Intelligent Robots and Systems Beijing Institute of TechnologyBeijing 100081China Laboratory for Translational Engineering Harvard Medical SchoolCambridgeMA 02139USA Key Laboratory of Biomimetic Robots and Systems (Beijing Institute of Technology) Ministry of EducationBeijing 100081China

Engineered microstructures that mimic in vivo tissues have demonstrated great potential for applications in regenerative medicine,drug screening,and cell behavior ***,current methods for engineering microstructures that mimic the multi-extracellular matrix and multicellular features of natural tissues to realize tissue-mimicking microstructures in vitro remain ***,we propose a versatile method for constructing tissue-mimicking heterogeneous microstructures by orderly integration of macroscopic hydrogel exchange,microscopic cell manipulation,and encapsulation ***,various cell-laden hydrogel droplets are manipulated at the millimeter scale using electrowetting on dielectric to achieve efficient hydrogel ***,the cells are manipulated at the micrometer scale using dielectrophoresis to adjust their density and arrangement within the hydrogel ***,the photopolymerization of these hydrogel droplets is triggered in designated regions by dynamically modulating the shape and position of the excitation ultraviolet ***,heterogeneous microstructures with different extracellular matrix geometries and components were constructed,including specific cell densities and *** resulting heterogeneous microstructure supported long-term culture of hepatocytes and fibroblasts with high cell viability(over 90%).Moreover,the density and distribution of the 2 cell types had significant effects on the cell proliferation and urea *** propose that our method can lead to the construction of additional biomimetic heterogeneous microstructures with unprecedented potential for use in future tissue engineering applications.

关键词： cell behavior explorationhowevercurrent tissue mimicking microstructures cell laden hydrogel electrowetting dielectric regenerative medicinedrug screeningand heterogeneous microstructures engineered microstructures orderly integration

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Fabricating titanium dioxide/N-doped carbon nanofibers as advanced interlayer for improving cycling reversibility of lithium-sulfur batteries

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Chinese Journal of Chemical Engineering 2022年第12期52卷 88-94页

作者： Xingmei Guo Jinfeng Xie Jing Wang Shangqing Sun Feng Zhang Fu Cao Yuanjun Liu Xiangjun Zheng Junhao Zhang Qinghong Kong School of Environmental and Chemical Engineering Jiangsu University of Science and TechnologyZhenjiang 212003China Key Laboratory for Advanced Technology in Environmental Protection of Jiangsu Province Yancheng Institute of TechnologyYancheng 224051China School of the Environment and Safety Engineering Jiangsu UniversityZhenjiang 212013China

"Shuttle effect" is detrimental for maintaining the high capacity and cycling reversibility of lithium-sulfur batteries(LSBs).To inhibit polysulfide migration,N-doped carbon nanofibers(N-CNFs) membrane comprising TiO_(2)nanoparticles(TiO_(2)/N-CNFs) is fabricated using an electrospinning-calcination method and further applied as interlayer in *** TiO_(2)/N-CNFs interlayer helps the battery to deliver a high specific capacity of 1155.2 mA·h·g^(-1)at 0.2 C with high Coulombic efficiency,good rate capability and *** cycling at 0.5 C,a capacity retention rate of 62.4% is achieved over 300 cycles,which is higher than that of CNFs and TiO_(2)/CNFs *** excellent performance should mainly be attributed to the alleviated "shuttle effect" deriving from high polysulfide trapping ability of TiO_(2)nanoparticles and N heteroatoms in interwoven CNFs.

关键词： TiO_(2)/N-CNFs interlayer Composites Microstructure Adsorption Lithium-sulfur battery Shuttle effect

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In-situ physical/chemical cross-linked hydrogel electrolyte achieving ultra-stable zinc anode-electrolyte interface towards dendrite-free zinc ion battery

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Journal of Energy Chemistry 2024年第10期97卷 342-351,I0007页

作者： Chen-Yang Li Jiang-Lin Wang Dong-Ting Zhang Min-Peng Li Hao Chen Wei-Hai Yi Xin-Ying Ren Bao Liu Xue-Feng Lu Mao-Cheng Liu State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals Lanzhou University of TechnologyLanzhou 730050GansuChina School of Materials Science and Engineering Lanzhou University of TechnologyLanzhou 730050GansuChina Chaowei Power Group Co. LTDChangxing 313100ZhejiangChina School of Vehicle Engineering Jiangsu UniversityNanjing 210031jiangsuChina

Hydrogen evolution reaction(HER),zinc corrosion,and dendrites growth on zinc metal anode are the major issues limiting the practical applications of zinc-ion ***,an in-situ physical/chemical cross-linked hydrogel electrolyte(carrageenan/polyacrylamide/ZnSO_(4),denoted as CPZ)has been developed to stabilize the zinc anode-electrolyte interface,which can eliminate side reactions and prevent dendrites *** in-situ CPZ hydrogel electrolyte improves the reversibility of zinc anode due to eliminating side reactions caused by active water ***,the electrostatic interaction between the SO_(4)^(-)groups in CPZ and Zn^(2+)can encourage the preferential deposition of zinc atoms on(002)crystal plane,which achieve dendrite-free and homogeneous zinc *** in-situ hydrogel electrolyte offers a streamlined approach to battery manufacturing by allowing for direct integration into the ***,the Zn//Zn half battery with CPZ hydrogel electrolyte can enable an ultra-long cycle over 5500 h at a current density of 0.5 mA cm^(-2),and the Zn//Cu half battery reach an average coulombic efficiency of 99.37%.The Zn//V_(2)O_5-GO full battery with CPZ hydrogel electrolyte demonstrates94.5%of capacity retention after 2100 *** study is expected to open new thought for the development of commercial hydrogel electrolytes for low-cost and long-life zinc-ion batteries.

关键词： In-suit CPZ hydrogel electrolyte Hydrogen evolution reaction and zinc corrosion Dendrites growth Zinc anode-electrolyte interface Zn ion batteries

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Bipolarized intrinsic faradaic layer on a semiconductor surface under illumination

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National Science Review 2023年第4期10卷 114-122页

作者： Mengfan Xue Zhiqiang Chu Dongjian Jiang Hongzheng Dong Pin Wang Gengzhi Sun Yingfang Yao Wenjun Luo Zhigang Zou Eco-Materials and Renewable Energy Research Center (ERERC) Jiangsu Key Laboratory for Nano Technology National Laboratory of Solid State Microstructures and Department of Physics Nanjing University National Laboratory of Solid State Microstructures College of Engineering and Applied Sciences Nanjing University Key Laboratory of Flexible Electronics (KLOFE) and Institute of Advanced Materials (IAM) Nanjing Tech University

Interface charge transfer plays a key role in the performance of semiconductors for different kinds of solar energy utilization, such as photocatalysis, photoelectrocatalysis, photochromism and photo-induced superhydrophilicity. In previous studies, different mechanisms have been used to understand interface charge transfer processes. However, the charge transfer mechanism at the solid/liquid interface remains a controversial topic. Here, taking TiO2as a model, we find and prove, via experiments, the new characteristic of photo-induced bipolarity of the surface layer（reduction faradaic layer and oxidation faradaic layer） on a semiconductor for the first time. Different from energy level positions in the classic surface states transfer mechanism, the potential window of a surface faradaic layer is located out of the forbidden band. Moreover,we find that the reduction faradaic layer and oxidation faradaic layer serve as electron and hole transfer mediators in photocatalysis, while the bipolarity or mono-polarity of the surface layer on a semiconductor depends on the applied potential in photoelectrocatalysis. The new characteristic of bipolarity can also offer new insights into the charge transfer process at the semiconductor/liquid interface for solar energy utilization.

关键词： semiconductor surface interface charge transfer reduction faradaic layer oxidation faradaic layer faradaic layer descriptor

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Numerical Investigation of the Effects of Gurney Flap on the Aerodynamic Characteristics of A821201 Airfoil

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Journal of Aeronautics, Astronautics and Aviation 2022年第4期54卷 467-478页

作者： Chen, Hao Chen, Zhong Du, Siliang Jiangsu Key Laboratory of Advanced Manufacturing Technology Huaiyin Institute of Technology No.1 Meicheng Rd. Qingjiangpu District Jiangsu Province Huaian223003 China

Two-dimensional steady Navier-Stokes equations with Spalart-Allmaras turbulence model were solved to explore the effects of Gurney flap on the aerodynamic behavior of an A821201 airfoil. This airfoil was designed specifically for use on the V-22 tiltrotor aircraft. Firstly, Gurney flaps with the heights ranging from 0.5 to 4% of the chord are investigated. The computational results show that Gurney flap can significantly augment the airfoil lift, and the Gurney flap with a height of 1% chord length provides the highest lift-to-drag ratio among the investigated configurations. In comparison with the clean A821201 airfoil, the maximum lift coefficient is increased by 17.3, 26.2, 38.3 and 53.7% for the 0.5, 1, 2 and 4% chord length height Gurney flaps, respectively. In addition, the airfoil drag and nose-down pitching moment are also increased with Gurney flap height. Secondly, the impacts of Gurney flap location are numerically studied. The distance between the mounting location and the trailing edge of the airfoil is s=0, 5 and 10% chord length, respectively. It is demonstrated that the best aerodynamic performance can be achieved when the Gurney flap is installed at the trailing edge (s=0). Furthermore, the surface pressure distribution, boundary layer velocity profile, and flowfield structure are illustrated, which are useful to understand the mechanisms of Gurney flap on the aerodynamic characteristics of tiltrotor airfoil. © 2022 The Aeronautical and Astronautical Society of the Republic of China. All rights reserved.

关键词： Airfoils

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Rhodium-catalyzed dearomative rearrangement of 2-oxypyridines with cyclopropenes: access to N-alkylated 2-pyridones

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Organic Chemistry Frontiers 2022年第5期9卷 1295-1299页

作者： Honglian Cui Guangyang Xu Jie Zhu Jiangtao Sun Jiangsu Key Laboratory of Advanced Catalytic Materials&Technology School of Petrochemical EngineeringChangzhou UniversityChangzhou 213164China

A rhodium-catalyzed dearomative rearrangement reaction of 2-oxypyridines has been developed by using cyclopropenes as carbene *** protocol features broad substrate scope and mild reac-tion conditions,providing a reliable and practical approach for the highly efficient synthesis of 2-alkylated 2-pyridone derivatives from readily available O-substituted pyridine compounds.

关键词： compounds rearrangement pyridine

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Electrochemically activated metal oxide sites at Rh-Ni2P electrocatalyst for efficient alkaline hydrogen evolution reaction

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Rare Metals 2024年第12期43卷 6416-6425页

作者： Cheng Peng Jia-Yi Li Luo-Xiang Shi Ming-Yue Wang Wen-Hai Wang Tao Cheng Pei-Zhi Yang Hao Yang Kong-Lin Wu Institute of Clean Energy and Advanced Nanocatalysis(iClean) School of Chemistry and Chemical EngineeringAnhui University of TechnologyMaanshan243002China Institute of Functional Nano&Soft Materials(FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials&DevicesSoochow UniversitySuzhou215123China Key Laboratory of Advanced Technique&Preparation for Renewable Energy Materials Ministry of EducationYunnan Normal UniversityKunming650500China

Highly efficient hydrogen evolution reaction(HER)electrocatalysts play a crucial part in generating green ***,an electrochemical activation approach was applied to design 6.7 Rh-Ni_(2)P-800CV electrocatalysts in alkaline *** results confirm that the generation of metal oxide sites through the electrochemical activation strategy can effectively improve the intrinsic activity of 6.7 Rh-Ni_(2)*** density functional calculations further confirm that metal oxide active sites are favorable for H2O adsorption and activation and H*adsorption/*** 6.7 Rh-Ni_(2)P-800CV possesses significantly enhanced HER performance with low overpotential(25 mV at 10 mA·cm^(2)),small Tafel(60 mV·dec^(-1))and robust stability in 1.0 M KOH,outperforming Pt/C and 6.7 Rh-Ni_(2)P ***,6.7 Rh-Ni_(2)P-800CV can even operate at a large current density(550 mA·cm^(-2))up to 90 h with an overpotential of 320 mV,which meets the requirements of industrial water ***'s more,the overall watersplitting systems(6.7 Rh-Ni_(2)P-800CV‖6.7 Rh-Ni_(2)P-800CV)can be directly driven by the solar *** work highlights that electrochemical activation technology provides a robust avenue toward constructing efficient electrocatalysts for sustainable energy conversion.

关键词： Metal oxides Transition metal phosphide Electrocatalysis Alkaline water electrolysis Solar-powered hydrogen production

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