期刊
ELECTROCHEMISTRY COMMUNICATIONS
卷 12, 期 6, 页码 843-846出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2010.03.046
关键词
Direct formic acid fuel cell; Anode catalyst; Palladium-nickel alloy; Electrodeposition
资金
- National Science Foundation of China [20706010, 20876029]
- Harbin Talents Foundation in the Innovation of Science and Technology
- Natural Scientific Research Innovation Foundation in Harbin Institute of Technology
Bimetallic palladium-nickel (PdNi2) alloy catalyst has been prepared for the electrooxidation of formic acid through a simple electrodepositing approach. Scanning Electron Microscopy and X-ray Diffraction revealed that the particle morphology and the crystalline lattice of PdNi2 alloy were highly different from those of Pd. Although the PdNi2 catalyst had less noble Pd content, the cyclic voltammetry and chronoamperometry results clearly demonstrated that its catalytic activity was significantly higher than that of Pd. The novel enhancement of catalytic activity was mainly ascribed to the weak absorption strength of intermediates on Pd through the interaction between Pd and additive Ni, which facilitated the formic acid oxidation through direct pathway. (C) 2010 Elsevier B.V. All rights reserved.
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