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The preparation of mesoporous activated carbon by microwave radiation heating walnut shell

Gongneng Cailiao/Journal of Functional Materials 2014年第18期45卷 18144-18147and18152页

作者： Wang, Li-Zhen Wen, Hong-Li Sun, Shu-Min Zhang, Yong School of Material and Chemical Engineering Zhengzhou Institute of Light Industry Zhengzhou China Henan Provincial Key Laboratory Surface and Interface Science Zhengzhou China

The mesoporous activated carbon was prepared by microwave radiation process using walnut shell as carbon source. The as-prepared activated carbon was well characterized by XRD, SEM and nitrogen adsorption-desorption. The influences of microwave power and radiation time on the capacitance characteristics of activated carbon for electrochemical capacitors was investigated by glavanostatic charge-discharge, cyclic voltammetry (CV)and AC impedance spectroscopy. Microwave power at 480 W and radiation time for 9 min were regarded as the optimum *** activated carbon prepared under this process had the average pore size of 4.44 nm and the mesoporous rate of 78.51%. The specific surface area was 1 530 m2/g and its shape was irregular, porous and amorphous structure. The specific capacitance was 226.4 F/g at the charge-discharge current of 100 mA/g. It kept 192.2 F/g after 1 000 cycles, and the capacity fade of activated carbon was only 0.015% when cycled at 100 mA/g.

关键词： Activated carbon

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Al-Si-based nano-Si3N4 composite coating prepared by plasma spraying and laser remelting on magnesium alloy

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Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 2014年第2期35卷 131-137页

作者： Wang, Xin Wang, Wen-Xian Ge, Ya-Qiong Cui, Ze-Qin Xu, Bing-She Taiyuan University of Technology College of Material Science and Technology Taiyuan 030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Ministry of Education Taiyuan 030024 China

In order to improve the surface properties of magnesium alloy, the present study combined laser remelting with plasma spraying technology to fabricate Al-Si+1%nano-Si3N4 composite coating on AZ31B magnesium alloy substrate with a 5 kW continuous wave CO2 laser. The phase, microstructure, elements distribution of the remelted layer and bonded interface of the as-sprayed and laser remelted coatings were analyzed by scanning electron microscopy, energy dispersive spectrometer, X-ray diffraction. Hardness and corrosion resistance of the as-sprayed and remelted layer was examined with microhardness tester and electrochemical workstation. The results show that the interface bewteen composite coating and magnesium alloy substrate achieves a good metallurgical bonding after remelting. Under the role of laser remelting, the intermetallic compounds of AlN, Mg2Si precipitated in the remelted layer and the dispersed aluminum silicon solid solution strengthening phase effectively improve the hardness of the remelted coating. The maximum value of microhardness is 514 HV0.05, which is 10 times of that of the matrix. The excellent corrosion resistance of the remelted layer is due to the fine microstructure and the precipitation of corrosion-resistant strengthening phases, the self-corrosion current of the remelted layer reduces by one order of magnitude compared with that of as-sprayed layer and substrate.

关键词： Plasma spraying

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Abstracts from the 2017-2018 Mineral Deposits Studies Group meeting Abstracts

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APPLIED EARTH science-TRANSACTIONS OF THE INSTITUTIONS OF MINING AND METALLURGY 2018年第2期127卷 46-79页

作者： [Anonymous] Natural History Museum () University of Lubumbashi () University of Liege () Dipartimento di Scienze della Terra dell'Ambiente e delle Risorse Università degli Studi di Napoli Federico II Napoli Italy) () GeoZentrum Nordbayern University of Erlangen-Nuremberg Schlossgarten 5 Erlangen 91054 Germany Dipartimento di Scienze della Terra dell'Ambiente e delle Risorse Università degli Studi di Napoli Federico II Napoli Italy () INGV Osservatorio Vesuviano Via Diocleziano 328 Napoli 80124 Italy Adventus Zinc Corporation Kells Co. Meath Ireland () Scottish Universities Environmental Research Centre East Kilbride G75 0QF UK ( ) The Hunterian University of Glasgow Glasgow G12 8QQ () SUERC Glasgow UK School of Earth Sciences University of Bristol Bristol UK Dipartimento Scienze della Terra Università di Napoli ‘Federico II’ Complesso Universitario di Monte S. Angelo Via Cintia 26 Napoli 80126 Italy Centre for Exploration Targeting The University of Western Australia 35 Stirling Highway Crawley WA 6009 Australia Serikbaev East Kazakhstan State Technical University (EKSTU) Oskemen Kazakhstan School of Earth and Ocean Sciences Cardiff University Park Place CF10 3AT School of Earth & Ocean Sciences Cardiff University Park Place Cardiff CF10 3AT UK () Department of Geology University of Leicester University Road LE1 7RH School of Earth and Ocean Sciences Cardiff University Cardiff CF10 3AT () School of Earth & Environmental Sciences University of Wollongong Wollongong NSW Australia VM Investment Company (PTY) Ltd. 24 Flicker Road Block A Illovo Johannesburg School of Earth and Environmental Sciences University of St Andrews United Kingdom () Natural History Museum University of Oslo Oslo Norway Center for Electron Nanoscopy Technical University of Denmark Kongens Lyngby Denmark KIT Synchrotron Radiation Facility Karlsruhe Institute of Technology Eggenstein-Leopoldshafen Germany Science Division Diamond Light Source Harwell Science and Innovation Campus

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Aptamers against Cells Overexpressing Glypican 3 from Expanded Genetic Systems Combined with Cell engineering and laboratory Evolution

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Angewandte Chemie 2016年第40期128卷

作者： Liqin Zhang Zunyi Yang Thu Le Trinh I‐Ting Teng Sai Wang Kevin M. Bradley Shuichi Hoshika Qunfeng Wu Sena Cansiz Diane J. Rowold Christopher McLendon Myong‐Sang Kim Yuan Wu Cheng Cui Yuan Liu Weijia Hou Kimberly Stewart Shuo Wan Chen Liu Steven A. Benner Weihong Tan Departments of Chemistry Physiology and Functional Genomics Center for Research at the Bio/Nano Interface UF Health Cancer Center UF Genetics Institute and McKnight Brain Institute University of Florida Gainesville FL 32611 USA Molecular Science and Biomedicine Laboratory State Key Laboratory of Chemo/Bio-Sensing and Chemometrics College of Chemistry and Chemical Engineering College of Biology Collaborative Innovation Center for Chemistry and Molecular Medicine Hunan University Changsha 410082 China Foundation for Applied Molecular Evolution Firebird Biomolecular Sciences LLC 13709 Progress Boulevard Alachua FL 32615 USA Department of Pathology Immunology and Laboratory Medicine Gainesville FL 32611 USA

laboratory in vitro evolution (LIVE) might deliver DNA aptamers that bind proteins expressed on the surface of cells. In this work, we used cell engineering to place glypican 3 (GPC3), a possible marker for liver cancer theranostics, on the surface of a liver cell line. Libraries were then built from a six‐letter genetic alphabet containing the standard nucleobases and two added nucleobases (2‐amino‐8 H ‐imidazo[1,2‐ a ][1,3,5]triazin‐4‐one and 6‐amino‐5‐nitropyridin‐2‐one), Watson–Crick complements from an artificially expanded genetic information system (AEGIS). With counterselection against non‐engineered cells, eight AEGIS‐containing aptamers were recovered. Five bound selectively to GPC3‐overexpressing cells. This selection–counterselection scheme had acceptable statistics, notwithstanding the possibility that cells engineered to overexpress GPC3 might also express different off‐target proteins. This is the first example of such a combination.

关键词： Aptamere Gerichtete Evolution Glypican 3 Künstliche Nucleobasen Zell-engineering

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Microstructure and micro-hardness of in-situ synthesizing TiN composite coating by reactive plasma cladding

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Xiyou Jinshu/Chinese Journal of Rare Metals 2014年第6期38卷 999-1004页

作者： Cui, Huawei Cui, Xiufang Wang, Haidou Xing, Zhiguo Jin, Guo Institute of Surface/Interface Science and Technology School of Materials Science and Chemical Engineering Harbin Engineering University Harbin150001 China National Defense Key Laboratory for Remanufacturing Technology Academy of Armored Forces Engineering Beijing100072 China State Key Laboratory of Tribology Tsinghua University Beijing100084 China

TiN phase usually as a strengthening phase in coatings have been widely used for wear-resistant coatings due to high hardness and superior wear-resistant. Ti powders were used as precursor materials for in-situ synthesizing TiN composite coatings deposited on stainless steel substrates by plasma cladding technique. The microstructure was characterized through scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and X-ray diffraction (XRD). The micro-hardness and fracture toughness of the composite coating were measured by microhardness tester. The results showed that the microstructure was composed of primary phase TiN cellular tree-like crystal structure and eutectic structure containing Ti phase and α-Fe phase. TiN disperse phase within the coating enhanced the micro-hardness, and HV0.3996 was achieved. The coating had indentation effect, the hardness from HV1021 under 0.98 N decreased to HV832 under 4.90 N. The micro-hardness indentation appeared cracks at a load of 4.90 N, and the composite coating had a superior fracture toughness of 5.15 MPa·m1/2. ©, 2014, Editorial Office of Chinese Journal of Rare Metals. All right reserved.

关键词： Composite coatings

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Effect of heat treatment on microstructure and mechanical properties of Mg-10.83Li-2.62Al-0.34Si alloy

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Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment 2014年第4期35卷 96-100页

作者： Zhang, Kun-Yu Liu, Xing-Hai Ma, Zi-Zai Wei, Ai-Li Liang, Wei College of Materials Science and Engineering Taiyuan University of Technology Taiyuan 030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of Technology Ministry of Education Taiyuan 030024 China

Mg-10.83Li-2.62Al-0.34Si alloy was homogenized and quenched. The effects of different heat treatments on microstructure, mechanical properties and the precipitated phases in the alloy were investigated by means of OM, SEM, EDS, XRD and tensile test. The results indicate that α-Mg phase can be significantly refined by the homogenization annealing through the remelting and reprecipitation of α-Mg. After quenching treatment, the grains are refined, Mg2Si phase is precipitated on grain boundaries and the tensile strength of the alloy is obviously increased. The tensile strength of the alloy reaches 244 MPa, which is increased by 68% than that of the as-cast alloy after heating at 300°C for 4 h and then water quenching.

关键词： Microstructure

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Inside Cover: High-Nuclear Organometallic Copper(I)–Alkynide Clusters: Thermochromic Near-Infrared Luminescence and Solution Stability (Chem. Eur. J. 49/2016)

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Chemistry – A European Journal 2016年第49期22卷 17490-17490页

作者： Hong-Yan Zhuo Dr. Hai-Feng Su Zhao-Zhen Cao Wei Liu Prof. Shu-Ao Wang Lei Feng Dr. Gui-Lin Zhuang Dr. Shui-Chao Lin Prof. Mohamedally Kurmoo Prof. Chen-Ho Tung Dr. Di Sun Prof. Lan-Sun Zheng Key Lab for Colloid and Interface Chemistry of Education Ministry School of Chemistry and Chemical Engineering Shandong University Jinan 250100 P. R. China State Key Laboratory for Physical Chemistry of Solid Surfaces and Department of Chemistry College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China School for Radiological and Interdisciplinary Sciences (RAD-X) Soochow University Jiangsu 215123 P. R. China College of Chemical Engineering and Materials Science Zhejiang University of Technology Hangzhou 310032 P. R. China Institut de Chimie de Strasbourg Université de Strasbourg CNRS-UMR 7177 4 rue Blaise Pascal 67008 Strasbourg Cedex France

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Effect of Mg（OH）2/CMSs Flame-Retardant Composites on the Structure and Property of PET

Effect of Mg（OH）2/CMSs Flame-Retardant Composites on the S...

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2014功能材料国际会议

作者： Ying ZHANG Mie NIU College of Light Textile Engineering Taiyuan Science and Engineering University Key Laboratory of Education Ministry of Interface Science and Engineering in Advanced Materials Taiyuan Science and Engineering University

Mg（OH）/CMSs/PET composites were prepared by using twin-screw *** electron microscope（SEM）,thermogravimetry（TG）,differential scanning calorimetry（DSC）,limiting oxygen index（LOI）and horizontal vertical burning... 详细信息

关键词： CMSs Flame-Retardant Composites on the Structure and Property of PET Effect of Mg

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Study of crack propagation in laminated glass under blast loads

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Binggong Xuebao/Acta Armamentarii 2014年 35卷 72-77页

作者： Li, Sheng-Jie Li, Zhi-Qiang Wang, Zhi-Hua Li, Xin Zhao, Long-Mao Institute of Applied Mechanics and Biology Engineering Taiyuan University of Technology TaiyuanShanxi030024 China Key Laboratory of the Material Interface Science and Engineering Taiyuan University of Technology TaiyuanShanxi030024 China

The dynamic response of laminated glass (LG) subjected to blast load is simulated to study the propagation law of cracks in LG. The JH-2 material model is applied to LG with maximum principal stress failure criterion. The results show that the radial cracks increase and extend from the center to the edges with the increase in TNT equivalent mass when the explosion distance remains unchanged. The circular cracks, which happen only in the center with a small amount, are not obvious when the mass of TNT is not more than 35 g. When the mass of TNT remains unchanged, the number of cracks decreases with the increase in explosion distance. At this time, the radial cracks are dominant and the circular cracks mainly happen in the center. When the explosion distance is 20 cm and the mass of TNT is 15 g, only the radial cracks happens. the circular cracks begin to appear on the condition of 30 g TNT, and the numbers of radial and circular cracks obviously increase on the condition of 45 g TNT. ©, 2014, China Ordnance Society. All right reserved.

关键词： Explosions

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High-efficiency, broad-band and wide-angle optical absorption in ultra-thin organic photovoltaic devices

High-efficiency, broad-band and wide-angle optical absorptio...

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作者： Wang, Wenyan Hao, Yuying Cui, Yanxia Tian, Ximin Zhang, Ye Wang, Hua Shi, Fang Wei, Bin Huang, Wei Key Lab. of Advanced Transducers and Intelligent Control System Ministry of Education Taiyuan University of Technology Taiyuan 030024 China Key Laboratory of Interface Science and Engineering in Advanced Materials Taiyuan University of Technology Taiyuan 030024 China Key Laboratory of Advanced Display and System Applications Ministry of Education Shanghai University Yanchang Road 149 Shanghai 200072 China Nanjing 210046 China

Metal nanogratings as one of the promising architectures for effective light trapping in organic photovoltaics (OPVs) have been actively studied over the past decade. Here we designed a novel metal nanowall grating with ultra-small period and ultra-high aspect-ratio as the back electrode of the OPV device. Such grating results in the strong hot spot effect in-between the neighboring nanowalls and the localized surface plasmon effect at the corners of nanowalls. These combined effects make the integrated absorption efficiency of light over the wavelength range from 400 to 650 nm in the active layer for the proposed structure, with respect to the equivalent planar structure, increases by 102% at TM polarization and by 36.5% at the TM/TE hybrid polarization, respectively. Moreover, it is noted that the hot spot effect in the proposed structure is more effective for ultra-thin active layers, which is very favorable for the exciton dissociation and charge collection. Therefore such a nanowall grating is expected to improve the overall performance of OPV devices. © 2014 Optical Society of America.

关键词： Light absorption

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