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Title: |
The Preparation and Study on Transition Metals/Ru Composed Chalcogenide Catalyst for Proton Exchange Membrane Fuel Cell |
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Source: |
Proceedings of the 7th National Conference on Functional Materials and Applications (FMA 2010 E-BOOK)
(pp 1642-1646)
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Author(s): |
Xiu-ling Zhu, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, 201600, Shanghai, P.R. China
Biao Wang, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, 201600, Shanghai, P.R. China
Hua-ping Wang, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, 201600, Shanghai, P.R. China |
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Abstract: |
A kind of non-Pt catalysts for the proton exchange membrane fuel cell, Ru-M/C (M=Fe, Co and Ni), is synthesized by using chemical Co-precipitating method in aqueous solution which includes four steps: Ru-M/C (M=Fe, Co and Ni) synthesis, annealing, electrochemical cleaning, and adding Se. The morphology, structure, component and the activity of catalysts (Se/Ru-M/C, M=Fe, Co and Ni) have been studied by TEM, EDAX, RDE. The size of Se/Ru-Fe/C catalyst nanoparticle was distributed homogeneous with the smallest average diameter of about 7.89 nm. The EDAX analysis reveals that 40at.% of Ru element was successfully substituted by Fe elements, and oxygen reduction activity of the Se/Ru-Fe/C accesses to about 0.66V vs. RHE. While for the Se/Ru-Co/C and Se/Ru-Ni/C catalyst nanoparticles, although both of them show high oxygen reduction activity as that of Se/Ru-Fe/C catalyst, the distribution of the diameter of their particles are inhomogeneous, and only about 20at.% of Ru element is replaced by the transition metals.
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