期刊
JOURNAL OF POWER SOURCES
卷 196, 期 3, 页码 956-961出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2010.08.089
关键词
Electrooxidation; Hydrazine; Composite catalyst; Synergy; Catalysis
资金
- Hi-tech Research and Development Program of China (863) [2007AA05Z144]
- Education Ministry of China [20070335003]
- National Natural Science Foundation of China [20976156, 50971114]
A carbon nanotubes (CNTs) supported composite catalyst consisting of Pd and Ni (Pd-Ni/CNT) is synthesized by a chemical method. The electrocatalytic activities of Pd/CNT, Ni/CNT and Pd-Ni/CNT toward the hydrazine oxidation reaction (HOR) are evaluated by linear sweep voltammetry, electrochemical impedance spectroscopy and polarization measurement. The composite catalyst demonstrates higher electrocatalytic activity than its single-constituent catalysts due the synergy between Ni and Pd. The Pd addition in the composite catalyst prevents oxidation of Ni so that the Pd-Ni/CNT electrode exhibits smaller reaction resistance to the HOR than the Ni/CNT and Pd/CNT electrodes. (C) 2010 Elsevier B.V. All rights reserved.
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