Structure and Electrochemical Performance of Amorphous Nickel Hydroxide Doped with La and Al

Liu, Chang Jiu; Xing, Chun Xiao; Chen, Shi Juan; Li, Yan Wei

doi:10.4028/www.scientific.net/MSF.663-665.1217

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HomeMaterials Science ForumMaterials Science Forum Vols. 663-665Structure and Electrochemical Performance of...

Structure and Electrochemical Performance of Amorphous Nickel Hydroxide Doped with La and Al

Abstract:

Amorphous nickel hydroxide powders doped with rare earth La3+ and Al3+ were synthesized by the combined chemical precipitation and rapid freezing method. The microstructure of the samples was characterized by XRD and Raman spectra. The electrochemical performance of the prepared samples was analyzed by electrochemical impedance spectroscopy and charge-discharge tests. The results showed that this amorphous nickel hydroxide codoped with La3+ and Al3+ had more structural defects than those of the undoped amorphous nickel hydroxide and La3+ singly doped amorphous nickel hydroxide. These abundant structural defects with La3+ and Al3+ codoped amorphous nickel hydroxide decreased the electrochemical impedance spectroscopy and improved the electrochemical reversibility of the amorphous nickel hydroxide electrode.

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Periodical:

Materials Science Forum (Volumes 663-665)

Edited by:

Yuan Ming Huang

Pages:

1217-1220

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.663-665.1217

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Online since:

November 2010

Authors:

Chang Jiu Liu, Chun Xiao Xing, Shi Juan Chen, Yan Wei Li

Keywords:

Amorphous, Doping, Electrochemical Performance, Nickel Hydroxide, Structure

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