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Electrochemical study of sulfide solution in the presence of surfactants

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Journal of Environmental Sciences 1998年第3期10卷 117-122页

作者： yi qing feng department of chemical engineering, xiangtan polytechnic university, xiangtan 4.1201, china Chen Qi yuan, Zhang Ping min department of Chemistry, Central South university of Technology, Changsha 410083, china

Voltammetric curve studies on aqueous Na_ 2S solution in the presence of three types of surfactants were presented. Presence of anodic surfactant (HTAB) increases anode current density and makes the corresponding anode peak potential shift to more negative. Potentials of the reduction of elemental sulfur to intermediates S^2-x shift to more negative with the increasing of HTAB concentrations. In the presence of HTAB, the anode current density at 77℃ increases more than at 34℃. The electrolysis indicates that anodic product sulfur loosely adhered to the graphite electrode surface when HTAB is added to the anolyte. The total efficiency of producing sulfur is high after several times of cycle electrolysis. The results showed that anode passivation is minimized in the presence of HTAB. The depassivation effect of HTAB was discussed. 

关键词： surfactant sulfur sulfide voltammetry.

Frontiers in high entropy alloys and high entropy functional materials

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Rare Metals 2024年第10期43卷 4639-4776页

作者： Wen-Tao Zhang Wen Huang Fu-Jie Yu Qi Zhao Xin-Dong Zhu Tao feng Yao Jiang Xiao-Ming Li Xue-Fei Miao He Zhu Si Lan Xue-Qian Wang Bao-Long Shen Zhe Jia feng-Qi Zhang Wei Wang Qi Liu Yang Ren Xun-Li Wang Xiao-Ya Cui Xiao-Yang Wang Ya-Nan Chen Bing-Bing Fan Meng-Ru Li Qi-Long Gao Jia-Ming Guo Zeng-Bao Jiao Zhi-Min Guo Yu-Ping Zhao Qian Yu Rui Huang Ling-Kun Zhang yi-Ping Lu Xu-Bo Li Huai-Jun Lin Yan Ma Wei-Ming Yang Zhi-Hua Shen Hai-Yan He Yong-Gang Sun Yong-Jiang Huang De-Zhuang Wang qing-feng Liu Fei-Yang Wang Hui Liu Hong-Hui Wu Li-Qiang Wang Yang Lu Nan Wang Tian-Li Wang Wei-Bing Liao yi-Han Wang Yuan Wu Yu-Zhen yin Jie Pan yi Zhang qing Wang Jian-Yang Zhang Tao Yang Yasir Sohail Jin-Yu Zhang Hua Ji Qiang Li Wei-Di Liu Zhi-Gang Chen Xiong-Jun Liu Wen Ma Liang Mao Zhen-Duo Wu School of Materials Science and engineering Nanjing University of Science and Technology Jiangsu Key Laboratory for Advanced Metallic Materials School of Materials Science and Engineering Southeast University department of Physics City University of Hong Kong School of Materials Science and engineering Tianjin University School of Physics and Microelectronics Zhengzhou University department of Mechanical engineering Research Institute for Advanced Manufacturing The Hong Kong Polytechnic University Center of Electron Microscopy and State Key Laboratory of Silicon Materials School of Materials Science and Engineering Zhejiang University Key Laboratory of Solidification Control and Digital Preparation Technology (Liaoning Province) School of Materials Science and Engineering Dalian University of Technology Institute of Advanced Wear & Corrosion Resistance and Functional Materials Jinan University School of Mechanics and Civil engineering China University of Mining and Technology School of Physical Sciences Great Bay University School of Materials Science andengineering Harbin Institute of Technology State Key Laboratory of Materials-Oriented chemical engineering College of Chemical Engineering Nanjing Tech University Beijing Advanced Innovation Center for Materials Genome engineering Research Institute for Carbon Neutrality University of Science and Technology Beijing department of Mechanical engineering The University of Hong Kong School of Computing Macquarie University Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province College of Physics and Optoelectronic Engineering Shenzhen University State Key Laboratory for Advanced Metals and Materials University of Science and Technology Beijing State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Institute of materials Shanghai University department of Materials Science and engineering C

Owing to their exceptional properties, high-entropy alloys(HEAs) and high-entropy materials have emerged as promising research areas and shown diverse applications. Here,the recent advances in the field are comprehensively reviewed,organized into five sections. The first section introduces the background of HEAs, covering their definition, significance,application prospects, basic properties, design principles, and microstructure. The subsequent section focuses on cutting-edge high-entropy structural materials, highlighting developments such as nanostructured alloys, grain boundary engineering,eutectic systems, cryogenic alloys, thin films, micro-nano-lattice structures, additive manufacturing, high entropy metallic glasses, nano-precipitate strengthened alloys, composition modulation, alloy fibers, and refractory systems. In the following section, the emphasis shifts to functional materials, exploring HEAs as catalysts, magneto-caloric materials, corrosion-resistant alloys, radiation-resistant alloys, hydrogen storage systems, and materials for biomedicine. Additionally, the review encompasses functional high-entropy materials outside the realm of alloys, including thermoelectric, quantum dots, nanooxide catalysts, energy storage materials, negative thermal expansion ceramics,and high-entropy wave absorption materials. The paper concludes with an outlook, discussing future directions and potential growth areas in the field. Through this comprehensive review,researchers, engineers, and scientists may gain valuable insights into the recent progress and opportunities for further exploration in the exciting domains of high-entropy alloys and functional materials.

关键词： Cutting-edge structural materials Cutting-edgefunctional materials High entropy alloys

High energy storage density in NaNbO_(3) antiferroelectrics with double hysteresis loop

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Journal of Materiomics 2024年第5期10卷 1026-1035页

作者： Li Ma Zhenpei Chen Gengguang Luo Zhiyi Che Chao Xu Dongliang Shan Zhenyong Cen Qin feng Xiyong Chen Toyohisa Fujita Ye Zhu Yunya Liu Jing-feng Li Shujun Zhang Nengneng Luo State Key Laboratory of Featured Metal Materials and Life-cycle Safety for Composite Structures School of ResourcesEnvironment and MaterialsGuangxi UniversityNanning530004China School of Chemistry and chemical engineering Guangxi UniversityNanning530004China department of Applied Physics Research Institute for Smart EnergyThe Hong Kong Polytechnic UniversityHung HomKowloonHong KongChina Key Laboratory of Low Dimensional Materials and Application Technology of Ministry of Education School of Materials Science and EngineeringXiangtan UniversityXiangtan411105HunanChina State Key Laboratory of New Ceramics and Fine Processing School of Materials Science and EngineeringTsinghua UniversityBeijing100084China Institute for Superconducting and Electronic Materials Australian Institute of Innovative MaterialsUniversity of WollongongWollongongNSW2500Australia

Antiferroelectrics(AFEs)possess great potential for high performance dielectric capacitors,due to their distinct double hysteresis loop with high maximum polarization and low remnant ***,the well-known NaNbO3 lead-free antiferroelectric(AFE)ceramic usually exhibits square-like P–E loop related to the irreversible AFE P phase to ferroelectric(FE)Q phase transition,yielding low recoverable energy storage density(Wrec).Herein,significantly improved Wrec up to 3.3 J/cm^(3) with good energy storage efficiency(η)of 42.4% was achieved in Na_(0.7)Ag_(0.3)Nb_(0.7)Ta_(0.3)O_(3)(30Agsingle bond30Ta)ceramic with well-defined double P–E loop,by tailoring the A-site electronegativity with Ag+and B-site polarizability with Ta^(5+).The Transmission Electron Microscope,Piezoresponse Force Microscope and in-situ Raman spectra results verified a good reversibility between AFE P phase and high-field-induced FE Q *** improved stability of AFE P phase,being responsible for the double P–E loop and improved Wrec,was attributed to the decreased octahedral tilting angles and cation *** mechanism was revealed by synchrotron X-ray diffraction and Scanning Transmission Electron *** work provides a good paradigm for achieving double P–E loop and high energy storage density in NaNbO_(3)-based ceramics.

关键词： Sodium niobate Antiferroelectrics Double hysteresis loop Energy storage performance Reversibility

Titanium nitride nanorod array/carbon cloth as flexible integrated host for highly stable lithium-sulfur batteries

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Rare Metals 2023年第12期42卷 4115-4127页

作者： Rui-qing Liu feng Jin Min Gu Dong-Wen Zhang Lu-Lu He Wen-Xiu Liu Wen-feng Zhu Kun Xie Jing-yi Wu yi-Ran Liu Wei-Wei Yang Xiu-Jing Lin Li Shi Xiao-Miao feng Zhen Hou Ji-Gang Zhou Yan-Wen Ma State Key Laboratory of Organic Electronics and Information Displays and Institute of Advanced Materials(IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials(SICAM)Nanjing University of Posts and TelecommunicationsNanjing 210023China department of Applied Physics The Hong Kong Polytechnic UniversityHung Hom 1000872Hong KongChina Canadian Light Source Inc. University of SaskatchewanSaskatoonSK S7N 2V3Canada Suzhou Vocational Institute of Industrial Technology Suzhou 215104China

Lithium-sulfur(Li-S)batteries have been regarded as promising energy-storage systems,due to their high theoretical capacity and energy ***,the carbonaceous sulfur hosts suffer from weak binding force between the hosts and polysulfides,restricting the cyclic stability of sulfur ***,the presence of binder and conductive agent in the traditional electrode reduces its energy *** study demonstrates that titanium nitride(TiN)nanorod array on carbon cloth(CC)is employed as a flexible host for highly stable Li-S batteries via solvothermal synthesis-nitridation *** the one hand,the flexible integrated network composed of three-dimensional TiN nanorod array and CC significantly improves the conductivity,increases the electron transport and electrolyte penetration of *** the other hand,the 3D structure of TiN/CC and the enhanced polarity of TiN effectively strengthen the physical and chemical double adsorption for *** a result,the combination of TiN nanorod array and CC synergistic ally promotes sulfur utilization and electrochemical performances of S@TiN/CC cathode.A discharge capacity of1015.2 mAh·g^(-1)at 0.5C after 250 cycles and 604.1mAh·g^(-1)at 3C after 250 cycles is *** a larger current density of 5C,the resulting S@TiN/CC cathode maintains a high discharge capacity of 666.6 mAh·g^(-1)and the Coulombic efficiency of about 100%.

关键词： Titanium nitride Nanorod array Integrated structure chemical adsorption Lithium-sulfur batteries

Humidity-control assists high-efficient coal fly ash removal by PTFE membrane

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Chinese Journal of chemical engineering 2021年第12期34卷 88-95页

作者： Dongyan Li Xi Tang Shasha feng chemical engineering department Nanjing Polytechnic InstituteNanjing 210048China State Key Laboratory of Materials-Oriented chemical engineering National Engineering Research Center for Special Separation MembraneNanjing Tech UniversityNanjing 210009China

In the present study,the effects of relative humidity on filtrating coal-fired fly ash with hydrophobic poly tetra fluoroethylene(PTFE) membranes were *** intergranular force of particulate matter at different RH conditions was measured by analyzing the critical angle between *** of humidity(from 30% to 70%) on filtration pressure drop and membrane fouling conditions were *** was found the membrane showed optimal filtration resistance of 530 Pa at RH of 60% and the gas permeance can be maintained at 1440 m^(3)·m^(-2)·h^(-1)·kPa^(-1).Moreover,to optimize the operation parameters for this filtration system,effects of fly ash concentration,diameter,membrane pore size,and gas velocities were systematically investigated.

关键词： Relative humidity Collapse angle Pressure drop Poly tetra fluoroethylene(PTFE)membrane Fly ash

Bimetal-organic-framework derived CoTiO_3 mesoporous micro-prisms anode for superior stable power sodium ion batteries

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Science china Materials 2018年第8期61卷 1057-1066页

作者： Zhen-Dong Huang Ting-Ting Zhangi Hao Lu Jike Yang Ling Bai Yuehua Chen Xu-Sheng Yang Rui-qing Liu Xiu-Jing Lin yi Li Pan Li Xianming Liu Xiao-Miao feng Yan-Wen Ma Key Laboratory for Organic Electronics and Information Displays & Jiangsu Key Laboratory for Biosensors Institute of Advanced Materials (IAM) Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM) Nanjing University of Posts & Telecommunications Nanjing 210023 China Advanced Manufacturing Technology Research Centre Department of Industrial and Systems Engineering Hong Kong Polytechnic University Hong Kong China College of Chemistry and chemical engineering Luoyang Normal University Luoyang 471022 China

Durability, rate capability, capacity and tap density are paramount performance metrics for promising anode materials, especially for sodium ion batteries. Herein, a carbon free mesoporous CoTiO3 micro-prism with a high tap density （1.8 gcm^-3） is newly developed by using a novel Co-Ti- bimetal organic framework （BMOF） as precursor. It is also interesting to find that the Co-Ti-BMOF derived carbon-free mesoporous CoTiO3 micro-prisms deliver a superior stable and more powerful Na^＋ storage than other similar reported titania, titanate and their carbon composites. Its achieved ca- pacity retention ratio for 2,000 cycles is up to 90.1% at 5 A g^-1.

关键词： sodium ion batteries anode materials metal-organic framework cobalt titanate mesoporous materialssodium ion batteries anode materials metal-organic framework cobalt titanate mesoporous materials

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纵弯模式转换开缝圆管压电超声换能器

中国科学：物理学、力学、天文学 2023年第11期53卷 194-205页

作者：李凤鸣刘世清许龙张海岛曾小梅陈赵江浙江师范大学应用声学研究所金华321004 中国计量大学理学院杭州310018 金华职业技术学院金华321004

本文提出一种新型的纵弯模式转换开缝圆管压电超声换能器,该换能器由夹心式压电超声换能器、变幅杆和开缝圆管辐射器三部分组成.其中开缝圆管辐射器由圆管沿轴向等分切割成若干弧形片,两端为半径相等的薄圆盘端盖.本文基于Timoshenko梁... 详细信息

本文提出一种新型的纵弯模式转换开缝圆管压电超声换能器,该换能器由夹心式压电超声换能器、变幅杆和开缝圆管辐射器三部分组成.其中开缝圆管辐射器由圆管沿轴向等分切割成若干弧形片,两端为半径相等的薄圆盘端盖.本文基于Timoshenko梁理论与机电类比原理,建立了均匀弹性杆弯曲振动和超声换能器整体的机电等效电路及共振频率方程.利用等效电路法、有限元法和实验测试对换能器的振动特性进行了研究,结果表明,通过新型的结构设计和利用纵向振动夹心式压电超声换能器可有效激发开缝圆管辐射器的两端盖产生低阶纵向弯曲振动,弧形片产生高阶横向弯曲振动,从而实现高效率、均匀和全方位的超声辐射.研究成果有望在超声污水处理、超声除藻和超声化学反应等大容量液体超声处理技术中获得应用.

关键词： Timoshenko梁理论模式转换弯曲振动机电等效电路

冠心舒通胶囊治疗冠心病的“成分-靶点-通路”研究

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中国药学杂志 2019年第3期54卷 200-207页

作者：孙志左莉华师莹莹周霖李卓伦冯娟娟康建贾清泉蔡琦张晓坚郑州大学第一附属医院药学部郑州450052 郑州大学第一附属医院河南省精准临床药学重点实验室郑州450052 郑州大学第一附属医院康复医学科郑州450052 河南理工大学医学院河南焦作454000

目的采用网络药理学方法探索冠心舒通胶囊治疗冠心病的"多成分-多靶点-多通路"网络调控机制。方法基于液质联用技术从冠心舒通胶囊中辨识其化学物质组成,以口服生物利用度(OB)≥30%和类药性(DL)≥0. 18筛选活性成分,进一步利用中药系统... 详细信息

目的采用网络药理学方法探索冠心舒通胶囊治疗冠心病的"多成分-多靶点-多通路"网络调控机制。方法基于液质联用技术从冠心舒通胶囊中辨识其化学物质组成,以口服生物利用度(OB)≥30%和类药性(DL)≥0. 18筛选活性成分,进一步利用中药系统药理学数据库和分析平台(traditional Chinese medicine systems pharmacology,TCMSP)预测活性成分的作用靶点,并与通过文献挖掘及多种数据库搜寻的冠心病相关靶点进行比对,筛选冠心舒通胶囊治疗冠心病的关键靶点,最后借助于生物分子功能注释系统3. 0(Molecule Annotation System 3. 0,MAS 3. 0)对得到的关键靶点进行通路注释分析。结果基于液质联用技术辨识指认得到43个化合物;通过OB及DL筛选得到鞣花酸、隐丹参酮、丹参酮ⅡA等10个主要活性成分;这些成分可作用于CLP、LDLR、TNF等关键靶点26个,共涉及49条重要信号通路(P <0. 05)。结论冠心舒通胶囊可能主要通过对TGF-beta、T细胞受体、MAPK等信号通路的干预来发挥治疗冠心病的作用,体现了冠心舒通胶囊多成分、多靶点、多途径的作用特点,为进一步深入揭示冠心舒通胶囊治疗冠心病的作用机制奠定了一定基础。

关键词：冠心舒通胶囊槲皮素山柰酚冠心病靶点信号通路

基于WO_3-纳米棒复合石墨烯薄膜修饰玻碳电极的DNA传感平台

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化学试剂 2019年第3期41卷 207-213页

作者：郑德论张锐龙陈键侨王呈文张彩云陈学武汪庆祥高凤汕头职业技术学院自然科学系广东汕头515078 闽南师范大学化学与环境科学学院福建漳州363000

以棒状WO_3纳米粒子(rWO_3)、石墨烯(GR)和壳聚糖(CTS)形成的纳米复合材料修饰玻碳电极(GCE)为平台,制备了一种新型电化学DNA生物传感器。电化学实验表明,复合膜层中棒状WO_3纳米粒子和GR的协同效应增大了电极表面积,导致其电化学响应... 详细信息

以棒状WO_3纳米粒子(rWO_3)、石墨烯(GR)和壳聚糖(CTS)形成的纳米复合材料修饰玻碳电极(GCE)为平台,制备了一种新型电化学DNA生物传感器。电化学实验表明,复合膜层中棒状WO_3纳米粒子和GR的协同效应增大了电极表面积,导致其电化学响应信号明显增强。通过CTS-rWO_3-GR杂化膜层丰富的氨基官能团和引入双功能手臂分子对苯二甲醛(TPA),将探针ss DNA稳固组装于传感界面。该DNA生物传感器集合了复合膜材料的许多优点,如:CTS良好的生物相容性和成膜能力,r WO_3纳米粒子和GR优异的电子转移能力等。在最佳条件下,以亚甲基蓝(MB)为电化学信号分子,采用差分脉冲伏安法(DPV)检测特异性ss DNA序列的浓度范围为1. 0×10-14～1. 0×10-8mol/L,并获得较低的检测限值2. 7×10-15mol/L(3σ)。该生物传感器对单碱基和三碱基错配的ss DNA序列也表现出良好的稳定性和识别能力。

关键词：棒状WO3 石墨烯复合膜层对苯二甲醛 DNA生物传感器