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the major component of the outer film.The electrochemical results revealed that the factors including frequency,potential,time,temperature and pH value can affect the semi-conductive property,the doping......
: chalcopyrite; Leptospirillum ferriphilum; bioleaching; redox potential; jarosite 1 Introduction Chalcopyrite, CuFeS2, is the most important copper- bearing mineral in the world. Unlike many other ores..., but also by environmental conditions, such as pH, redox potential, pulp concentration, bacteria amount, other ion concentration, and temperature. Herein, the relationship between the redox potential......
Effects of rare earth addition on sintering process and dielectric property of cordierite based glass-ceramics CHEN Guo-hua(陈国华)1, 2, LIU Xin-yu(刘心宇)1, 2 (1. Department of Materials Science... of rare earth oxide on the sintering and dielectric property of cordierite-based glass-ceramics with non-stoichiometric composition prepared by quenching of molten droplets were investigated. The results......
Bacteria adherence property of molybdenum nitride modified layer on Ti6Al4V alloy FAN Ai-lan(范爱兰), TIAN Lin-hai(田林海), QIN Lin(秦 林), TANG Bin(唐 宾) Research Institute of Surface... by the plasma surface alloying technique. The bacteria adherence property of the Mo-N modified layer on Ti6Al4V alloy on the oral bacteria Streptococcus Mutans was investigated and compared......
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% sulphuric acid for 5 h and then kept at 450 ℃ for 2 h was evaluated for their electrochemical performance as electrodes of vanadium redox battery (VRB). Structure and characteristic of treated PAN-based... from 0.31 m2/g to 0.45 m2/g. The V(Ⅱ)/V(Ⅲ) redox reaction is electrochemically reversible on the TPGF electrode, while the V(Ⅳ)/V(Ⅴ) couple is a quasi reversible process. The diffusion coefficients......
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production with high CO selectivity. The product distribution and evolution for POM by sequential redox reaction was determined by amounts of replenished lattice oxygen with gaseous oxygen. The optimal process should decline the total oxidation of methane, and increase the selectivity of partial oxidation of methane. Key words:perovskite LaFeO3; lattice oxygen; synthesis gas; redox reaction; rare......
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Sound absorption property of open-pore aluminum foams WANG Lu-cai(王录才)1, 2, WANG Fang(王 芳)2, WU Jian-guo(武建国)2, YOU Xiao-hong(游晓红)2 1. Department of Materials Science and Engineering...; accepted 15 September 2006 Abstract: The sound absorption property of aluminum foam was studied by testing its sound absorption coefficients using standing wave tube method. The open-pore aluminum......