Manufacture of Carbon Supported PtCuLaO_X Membrane Electrode with Low Pt Loading by IBS Technology

Abstract:

For the use of Fuel Cells in transportation, one of the key points is to reduce Pt loading in Pt/C catalytic electrode. In our study, a new type of Pt/C membrane electrodes, PtCuLaO_x heterogeneous structure, in which with developing different La content homogeneously dispersed on the surface of carbonaceous substrates was manufactured by Ion Beam Sputtering (IBS) technology, and also was treated by different annealing temperature in muffle furnace. It was found that PtCuLaO_x heterogeneous membrane with Pt loading less than 0.05mg/cm² (the electrode area) in which its having complicated valence state, indicated that Pt had mutual effect with Cu, La and O, respectively. In addition, along with increases the annealing temperature, the instant result was to promote alloying of Pt, Cu and La in PtCuLaO_x/C catalytic electrodes.

• Periodical: Advanced Materials Research (Volumes 335-336)
• Pages: 1308-1311
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.335-336.1308
• Online since: September 2011
• Authors: Bin Yang, Tao Xu, Ming Zhe Shen
• Keywords: IBS, Membrane Electrodes, Phase Composition, PtCuLaO_x, Valence State

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