The preparation and performance of high activity Ni-Cr binary catalysts for direct borohydride fuel cells

Ni-Cr binary anode catalysts used in direct borohydride fuel cells （DBFCs） were prepared using a constant potential electrodeposition method. Compared with pure metal Ni catalysts, the electro-oxidation currents of borohydride ions （BH4） more than doubled when using Ni-Cr binary catalysts under the...

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Published in:Chinese science bulletin 2013-07, Vol.58 (20), p.2435-2439
Main Authors: Yu, DanMei, Shen, Yan, Ye, Zhen, Wen, JiaZhi, Wang, Jie, Chen, ChangGuo
Format: Article
Language:English
Subjects:
Borohydrides
Catalysis
Catalysts
Chemistry/Food Science
chromium
Earth Sciences
Electrodeposition
Electrodes
Engineering
Fuel cells
Humanities and Social Sciences
hydrogen
ions
Life Sciences
multidisciplinary
Ni-Cr合金
Nickel
Optimization
Physics
Science
Science (multidisciplinary)
二元催化剂
制备
性能
燃料电池
电沉积方法
硼氢化物
高活性
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cited_by cdi_FETCH-LOGICAL-c447t-2bb3b3cf333817d305f961a28c7f395544ce8dc1cc75d669fcdf7a45f38a2b1e3
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Chen, ChangGuo
description Ni-Cr binary anode catalysts used in direct borohydride fuel cells （DBFCs） were prepared using a constant potential electrodeposition method. Compared with pure metal Ni catalysts, the electro-oxidation currents of borohydride ions （BH4） more than doubled when using Ni-Cr binary catalysts under the same conditions. The enhanced activity of the Ni-Cr binary catalysts could be attributed to the change in distribution of BH4 ions on the surface of the Ni electrode. This is due to Cr electrodeposits, which allows a greater number of hydrogen atoms to catalyze from each tetrahedron BI-E ion. The performance of Ni-Cr binary catalysts could also be improved by optimizing the electrodeposition conditions. The results show that Ni-Cr binary catalysts are optimally prepared using an electrodeposition method of 1 s with a Cr^3＋ concentration of 0.2 mol L^-1 and a potential of-0.100 V.
doi_str_mv 10.1007/s11434-013-5723-4
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identifier ISSN: 1001-6538
ispartof Chinese science bulletin, 2013-07, Vol.58 (20), p.2435-2439
issn 1001-6538
1861-9541
language eng
recordid cdi_proquest_miscellaneous_1671548549
source SpringerLINK Contemporary 1997-Present
subjects Borohydrides
Catalysis
Catalysts
Chemistry/Food Science
chromium
Earth Sciences
Electrodeposition
Electrodes
Engineering
Fuel cells
Humanities and Social Sciences
hydrogen
ions
Life Sciences
multidisciplinary
Ni-Cr合金
Nickel
Optimization
Physics
Science
Science (multidisciplinary)
二元催化剂
制备
性能
燃料电池
电沉积方法
硼氢化物
高活性
title The preparation and performance of high activity Ni-Cr binary catalysts for direct borohydride fuel cells
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