Study on Electrochemical Characteristics of Mg-Based Hydrogen Storage Alloys with Sc

被引：0

作者：

Liu Zili ^{[1
]}

Liu Xinbo ^{[1
]}

机构：

[1] Nanjing Univ Aeronaut & Astronaut, Sch Mat Sci & Technol, Nanjing 210016, Peoples R China

来源：

RARE METAL MATERIALS AND ENGINEERING | 2009年 / 38卷 / 07期

关键词：

Mg-Ni hydrogen storage alloys; mechanical alloying; electrochemical properties; Sc; SCANDIUM;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The Mg1-xScxNi (x=0, 0.01) hydrogen storage alloys were prepared by mechanical alloying. The XRD test results showed that the alloys were amorphous alloys. The XPS test results indicated that the addition of Sc weakened the degree of oxidation on the alloy surface, and increased the atom ratio of Ni/Mg at the alloy powders' surface. The electrochemical test results showed that the addiction of Sc improved the electrochemical properties of the alloy electrodes. The discharge capacity, the cycle capacity retention rate S-10, HRD200, the exchange current density I-0 and the limited current density I-L of Mg0.99Sc0.01Ni alloy electrodes were 10.5%, 14.7%, 30.4%, 202.7% and 77.8% higher than that of MgNi alloy electrodes', respectively.

引用

页码：1174 / 1178

页数：5

共 15 条

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