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The hydrogen desorption kinetics of Mg0.9-xTi0.1PdxNi (x=0.04, 0.06, 0.08, 0.1) electrode alloys
Tian, Qi-Feng; Zhang, Yao; Sun, Li-Xian; Xu, Fen; Yuan, Hua-Tang
关键词Hydrogen Desorption Kinetics Potentiostatic Discharge Three-dimensional Diffusion Activation Energy Hydrogen Storage Alloys
刊名JOURNAL OF ALLOYS AND COMPOUNDS
2007-10-31
DOI10.1016/j.jallcom.2007.01.004
446页:121-123
收录类别ISTP ; SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
研究领域[WOS]Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
关键词[WOS]ELECTROCHEMICAL PROPERTIES ; STORAGE ALLOYS ; TI ; PD ; TERNARY ; MGNI ; SUBSTITUTION ; BATTERIES
英文摘要We have reported that the cyclic stability of Mg0.9-xTi0.1 PdxNi (x = 0.04, 0.06, 0.08, 0.1) amorphous electrode alloys prepared by mechanical alloying was enhanced to 100 cycles over 200 mAh/g in our previous work. The hydrogen desorption kinetics of the electrode alloys were studied in this work by potentiostatic discharge experiments. Experimental results showed that the three-dimensional hydrogen diffusion dominated the desorption process of electrode alloys. The activation energy of desorption was calculated according to the Arremus equation. The values were 49.11 kJ mol(-1), 45.99 kJ mol(-1), 42.50 kj mol(-1) and 40.66 kJ mol(-1) for x = 0.04, 0.06, 0.08 and 0.1 of Mg0.9-xTi0.1PdNi electrode alloys, respectively. The limiting current densities were determined by anodic polarization experiments. The increasing Pd amount results in the reducing of activation energy and enhancement of the limiting current density of the quaternary Mg-based electrode alloys. (C) 2007 Elsevier B.V. All rights reserved.
语种英语
WOS记录号WOS:000250822900026
引用统计
被引频次:2[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/140686
专题中国科学院大连化学物理研究所
作者单位1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Wuhan Inst Technol, Hubei Key Lab Novel Chem Reactor & Green Chem Tec, Wuhan 430073, Peoples R China
3.Nankai Univ, Inst New Energy Mat Chem, Tianjin 300071, Peoples R China
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GB/T 7714
Tian, Qi-Feng,Zhang, Yao,Sun, Li-Xian,et al. The hydrogen desorption kinetics of Mg0.9-xTi0.1PdxNi (x=0.04, 0.06, 0.08, 0.1) electrode alloys[J]. JOURNAL OF ALLOYS AND COMPOUNDS,2007,446:121-123.
APA Tian, Qi-Feng,Zhang, Yao,Sun, Li-Xian,Xu, Fen,&Yuan, Hua-Tang.(2007).The hydrogen desorption kinetics of Mg0.9-xTi0.1PdxNi (x=0.04, 0.06, 0.08, 0.1) electrode alloys.JOURNAL OF ALLOYS AND COMPOUNDS,446,121-123.
MLA Tian, Qi-Feng,et al."The hydrogen desorption kinetics of Mg0.9-xTi0.1PdxNi (x=0.04, 0.06, 0.08, 0.1) electrode alloys".JOURNAL OF ALLOYS AND COMPOUNDS 446(2007):121-123.
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