共搜索到8631条信息,每页显示10条信息,共864页。用时:0小时0分0秒453毫秒
words: hydrogen storage alloy; electrochemical kinetics; metal hydride electrode; theoretical simulation 1 Introduction Among all the factors promoting the scientists to study and improve... Electrode properties and phase composition of Ti0.5Ni0.25Al0.25 hydrogen storage alloys and theoretical simulation WU Jun(吴 军)1, XU Yan-hui(徐艳辉)1, CHEN Chang-pin(陈长聘)2, ZHENG Jun-wei(郑军伟)1, LI De......
Co-intensification of gold leaching with heavy metals and hydrogen peroxide YANG Yong-bin(杨永斌), LI Qian(李 骞), JIANG Tao(姜 涛), GUO Yu-feng(郭宇峰), LI Guang-hui(李光辉), XU Bin(许 斌) School... to its electrochemical nature by using anodic intensifiers of heavy metal ions (Pb2+, Bi3+, Tl+, Hg2+ and Ag+) on the basis of hydrogen peroxide assistant leaching on three different types of materials......
compounds, perovskite compounds and spinel compounds have been successfully developed. For its high energy density, high rate charge-discharge capability, excellent hydrogen absorption-desorption ability... for 300 min before tests. Fig.3 indicates that the addition of CuAl2O4 improves the kinetics properties of hydrogen storage alloy. The electrode electrochemical reaction resistance decreases when......
时,其氢脆敏感性将有所提高. 关键词:热浸镀锌层;氢渗透;大气腐蚀;氢脆 中图分类号:TG 174.41 文献标识码:A Effect of humidity on hydrogen embrittlement susceptivity of hot-dip galvanized steel exposed... 100039, China) Abstract: The hydrogen permeation and embrittlement behavior of hot-dip galvanized steels exposed to stimulated marine atmospheric environments with different relative humidities(RH......
temperature, superior hydrogen desorption property, and lower hydrogen desorption activation energy, which is thought to be the reason of its better hydrogen storage kinetics, as compared with RE=Sm... of alloy hydrides. SADHASIVAM et al [14] investigated the effect of adding Mm (Ce and La as the dominant components) oxide on hydrogen desorption kinetics of MgH2 and the results revealed that Mm-oxide......
of the as-synthesized composites were investigated. It was found that the composite doped with 2 mol.% LaH3.01 displayed the highest hydrogen absorption capacity of 4.78 wt.% and desorption capacity of 4.66 wt.%, respectively. Moreover, the composite doped with 6 mol% CeH 2.51 showed the best hydriding/dehydriding reaction kinetics. The proposed catalytic mechanism for reversible hydrogen storage......
of the as-synthesized composites were investigated. It was found that the composite doped with 2 mol.% LaH3.01 displayed the highest hydrogen absorption capacity of 4.78 wt.% and desorption capacity of 4.66 wt.%, respectively. Moreover, the composite doped with 6 mol% CeH 2.51 showed the best hydriding/dehydriding reaction kinetics. The proposed catalytic mechanism for reversible hydrogen storage......
1500 MPa级高强度钢42CrMoVNb的氢吸附行为李阳1,张永健1,惠卫军1,王毛球1,董瀚1(1.北京市钢铁研究总院先进钢铁材料技术国家工程研究中心)摘 要:采用阴极充H和H热分析等实验方法,研究了新开发的1500MPa级高强度钢42CrMoVNb在不同奥氏体化温度淬火和不同温度回火后的H吸附行为,并与常用钢42CrMo进行了对比.结果表明,在淬火态及不同温度回火处理后,42CrMoVNb钢充H试样的H逸出曲线峰值温度θP在200-250℃之间.回火温度从200℃升高到......
on hydrolysing after the initial stage of hydrolysis. However, the reaction kinetics is still insufficient, and the overall hydrogen produced by the 15h-milled nanocrystalline MgH2 achieves only about 27... to improve the hydrolysis kinetics of MgH2. The reason that CaH2 is more effective than Ca lies in that it has a faster intrinsic hydrolysis kinetics and higher hydrogen production capacity. 4......
Thermodynamics and kinetics of alumina extraction from fly ash using an ammonium hydrogen sulfate roasting methodRuo-chao Wang,Yu-chun Zhai,Zhi-qiang NingSchool of Materials and Metallurgy, Northeastern University摘 要:A novel method was developed for extracting alumina(Al2O3)from fly ash using an ammonium hydrogen sulfate(NH4HSO4)roasting process......