Ti2Ni alloy: a potential candidate for hydrogen storage in nickel/metal hydride secondary batteries

被引：42

作者：

Zhao, Xiangyu ^{[1
]}

Ma, Liqun ^{[1
]}

Yao, Yan ^{[1
]}

Ding, Yi ^{[1
]}

Shen, Xiaodong ^{[1
]}

机构：

[1] Nanjing Univ Technol, Coll Mat Sci & Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China

来源：

ENERGY & ENVIRONMENTAL SCIENCE | 2010年 / 3卷 / 09期

关键词：

METAL-ORGANIC FRAMEWORKS; ELECTROCHEMICAL PROPERTIES; TI4NI2X X; ELECTRODES; NI; PERFORMANCE; POWDERS; CARBON; PHASE; AL;

D O I：

10.1039/c0ee00054j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

An amorphous Ti2Ni alloy, prepared by mechanical milling of a crystalline Ti2Ni alloy, was heat-treated at several temperatures. The crystalline behavior of the amorphous alloy was studied, relative to a multi-stage crystallization mode, using X-ray diffraction, differential scanning calorimetry, and electron diffraction. X-Ray photoelectron spectroscopy was performed to analyze the surface structure of the alloys. The alloy that was heat-treated at 693 K, with a non-equilibrium bulk structure and a protective surface layer, has a high discharge capacity and good cycling stability. The issue of severe capacity loss of Ti2Ni-based alloys, which has caused problems for many years, has been significantly improved.

引用

页码：1316 / 1321

页数：6

共 39 条

[1] Crystal structures of novel La-Mg-Ni hydrogen absorbing alloys [J].

Akiba, E ;

Hayakawa, H ;

Kohno, T .

JOURNAL OF ALLOYS AND COMPOUNDS, 2006, 408 :280-283

[2]

[Anonymous], 1995, Handbook of X-ray Photoelectron Spectroscopy. A Reference Book of Standard Spectra for Identification and Interpretation of XPS Data

[3] Mechanical milling and subsequent annealing effects on the micro structural and hydrogenation properties of multisubstituted LaNi5 alloy [J].