Paper Title:
Microstructures and Electrochemical Hydrogen Storage Properties of La0.7Ce0.3Ni3.83Mn0.43Co0.25-xAl0.26Cu0.48(Fe0.43B0.57)x Alloys
  Abstract

Microstructures and electrochemical characteristics of La0.7Ce0.3Ni3.83Mn0.43Co0.25-x Al0.26Cu0.48(Fe0.43B0.57)x hydrogen storage alloys have been investigated. XRD results indicate that La0.7Ce0.3Ni3.83Mn0.43Co0.25-xAl0.26Cu0.48 alloy is single LiNi5 phase, and the alloys containing Fe0.43B0.57 are composed of LaNi5 matrix phase and La3Ni13B2 secondary phase, and the abundance of the secondary phase gradually increases with increasing Fe0.43B0.57 content. Maximum discharge capacity of the alloy electrodes monotonically decreases from 311.2 mAh/g (x = 0) to 289.6 mAh/g (x = 0.20). High-rate dischargeability at the discharge current density of 1200 mA/g first increases from 53.1% (x = 0) to 64.0% (x = 0.15), and then decreases to 56.5% (x = 0.20).

  Info
Periodical
Chapter
Chapter 1: Novel and Advanced Materials, Materials Science and Technologies
Edited by
Qingzhou Xu
Pages
59-62
DOI
10.4028/www.scientific.net/AMR.721.59
Citation
Y. Zhou, X. Y. Peng, B. Z. Liu, "Microstructures and Electrochemical Hydrogen Storage Properties of La0.7Ce0.3Ni3.83Mn0.43Co0.25-xAl0.26Cu0.48(Fe0.43B0.57)x Alloys", Advanced Materials Research, Vol. 721, pp. 59-62, 2013
Online since
July 2013
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$32.00
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