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Improved electrochemical hydrogen storage capacity of Ti45Zr38Ni17 quasicrystal by addition of ZrH2Jianxun Zhao1,Xiaojie Zhai1,Xing Tao1,Zhe Li1,Qingshuang Wang1,Wanqiang Liu1,Limin Wang21. School... mentioned above, but also the Zr H phase. These composite materials are used as the negative electrode material of the nickel-metal hydride batteries.The electrochemical hydrogen storage characteristics......
for electrochemical measurement.Electrode is 10C, the capacity decreasing rate via the 450 cycles at 7C is less than 20%. Key words:nano-crystal; hydrogen storage alloys; electrochemically...Characteristic Investigation of Nano-Crystal Hydrogen Storage Alloys Tang Renheng1,Lu Qiyun1,Xiao Fangming1,Huang Lili1,Peng Neng1,Wang Ying1 (1.Rare Earth Materials Research Center, Guangzhou......
]. The possible reason is that the glassy state possesses a higher free energy and therefore also a larger driving force for oxidation. However, in many hydrogen storage alloys, their hydrogen storage capacity... Hydrogen absorption and desorption in metallic glass and nanocrystalline Zr52.5Cu17.9Ni14.6Ti5Al10 alloy CHENG Xiao-ying(程晓英), WANG Fang(王 芳) Institute of Materials Science, Shanghai......
of hydrogen storage alloys were investigated. It is found that the activity, discharge capacity and high rate dischargeability of the alloys are improved after physical and chemical modification... dischargeability. Key words:storage energy technology; hydrogen storage alloy; discharge capacity; activity; high rate dischargeability; rare earths; [全文内容正在添加中] ......
elements can accelerate the reaction rate, which becomes the main reason for the degradation of the discharge capacity. Key words: amorphous Mg65Ni10RE25 alloys; hydrogen storage material; electrode...; 文献标志码:A Properties of amorphous Mg65Ni10RE25 (RE=La, Ce, Pr, Nd, Mm) hydrogen storage alloys electrode ZHANG Qi1, 2, LI Shuang-shou2, DONG Zhan-min3, TANG Bin2, LI Rui2......
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. It is observed that Ti-Zr hydride doped NaAlH4 discharges 2.7% and 4.0% (mass fraction) of hydrogen in 40 min and 11 h at 160 ℃, respectively, and keeps its reversible dehydrogenation capacity at 4.0% (mass fraction) after 10 hydrogenation/dehydrogenation cycles. These results show the Ti-Zr hydride doped NaAlH4 has good reversible hydrogen storage capacity and kinetics. XRD and SEM investigations......
stability. Key words:rare earth based hydrogen storage alloy; phase structure; activation; discharge capacity; cycling stability; high rate discharge ability; [全文内容正在添加中] ...Phase Structure and Electrochemical Properties of Rare Earth Based Hydrogen Storage Alloys Che Guangdong1,Liu Xiao1,Liu Xiangdong1,Chen Weidong1 (1.School of Material Science and Technology, Inner......
% of the saturated hydrogen absorption capacity. Moreover, the improvement of the gaseous hydrogen storage kinetics of the alloys is found to be ascribed to a decrease in the hydrogen desorption activation... the requirements of the performances proposed by US Department of Energy (DOE) for vehicular applications [2, 3]. In terms of hydrogen absorption capacity, Mg-based alloys are considered to a promising......