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: A Preparation of niobium by direct electrochemical reduction of solid Nb2O5 DENG Li-qin, XU Qian, LI Bing, ZHAI Yu-chun, HUANG Zhen-qi (School of Materials and Metallurgy, Northeastern University, Shenyang... reaction is affected by the sizes of hole and grain of cathode. Key words: eletro-deoxidation; molten salt; Nb2O5; niobium; electrochemistry 金属铌具有熔点高, 耐蚀性好, 热中子俘获截面小, 导热导电性能好等特性, 在航空航天, 超导等领域得到了广泛的应......
materials; lithium ion batteries; electrochemistry Cite this article as: DENG Zhao, HUANG Xing, ZHAO Xu, CHENG Hua, WANG Hong-en. Facile synthesis of hierarchically structured manganese oxides as anode... reduction conditions. Then, the resultant CoMn2O4 products were thoroughly washed with DI water, followed by collection via filtration, and finally dried at 60 °C for 12 h in vacuum. For simplicity......
; electrochemistry; reduction 金属Nb具有熔点高,强度高,耐热,与人体亲和性好,抗腐蚀性强,中子俘获截面低等良好性能.Nb 用途广.... Open aluminothermic reduction of columbium (Nb) pentoxide and purification of the reduced metal[J]. Matel Trans, 1971, 2: 2817?2823. [4] 何季麟, 张宗国, 徐忠亭. 中国钽铌湿法冶金[J]. 稀有金属材料与工程, 1998, 27(1): 9?14.HE......
J. Cent. South Univ. (2016) 23: 1318-1325 DOI: 10.1007/s11771-016-3182-1 Reduction mechanism of Fe2O3-Cr2O3-NiO system by carbon ZHANG Yan-ling(张延玲), GUO Wen-ming(郭文明), LIU Yang(刘洋), JIA Xin-lei(贾昕磊...: Isothermal experiments on the reduction of Fe2O3-Cr2O3-NiO (molar ratio of Fe-to-Cr-to-Ni is 3:2:2) by graphite were carried out at 1350–1550°C, and effects of various factors on reduction degree were......
, such as low reduction potential as cathode materials or high reduction potential as anode materials. Here, the influence of chemical functionalities that are capable of either electron donating or electron withdrawing groups on the reduction potential and charge-discharge performance of anthraquinone (AQ) based system is studied. The cyclic voltammetry results show that the introduction of two -OH......
the pyrite potential and promote the reduction leaching of pyrolusite. MnO2-FeS2 contact reaction model and MnO2-FeS2-H2SO4 bacterial leaching of catalytic model exist in the microbial leaching process, and there are different reaction models in different reaction stages. Key words: pyrolusite; microbial leaching; leaching rate of MnO2; electrochemistry 锰是一种重要工业原料,广泛应用于钢铁,各种合金,电子材料,农牧和其他化工产品,在国民经济中......
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A reduction approach to prepare ZnSe nanocrystallites JIANG Hai-qing(姜海青)1, 2, CHE Jun(车 俊)2, LI Zhi-min(李智敏)1, YAO Xi(姚 熹)2 1. School of Technical Physics, Xidian University, Xi’an 710071, China... nanocrystallites powders were successfully prepared by reduction method with H2SeO4 or H2SeO3 as selenium source and Zn(Ac)2·H2O as zinc source. The reaction mechanism was also discussed through XRD......
Preparation of primary Al-Si alloy from bauxite tailings by carbothermal reduction process YANG Dong(杨 栋), FENG Nai-xiang(冯乃祥), WANG Yao-wu(王耀武), WU Xiao-lei(武小雷) School of Materials... and bituminite content on the preparation of primary Al-Si alloy by carbothermal reduction of bauxite tailings were investigated by XRD,XRF,infrared absorption carbon-sulfur analysis unit and SEM coupled......
A new double reduction method for slope stability analysisBAI Bing(白冰), YUAN Wei(袁维), LI Xiao-chun(李小春)(State Key Laboratory of Geomechanics and Geotechnical Engineering(Institute of Rock and Soil Mechanics, Chinese Academy of Sciences), Wuhan 430071, China)Abstract:The core of strength reduction method (SRM) involves finding a critical strength curve that happens to make the slope globally fail......
