PtIr/C Catalysts Synthesized by Electrochemical Dispersion Method for Proton Exchange Membrane Fuel Cells

A. B. Kuriganova; I. N. Leont’ev; N. V. Smirnova

doi:10.1134/S1023193518060113

PtIr/C Catalysts Synthesized by Electrochemical Dispersion Method for Proton Exchange Membrane Fuel Cells

作者: Kuriganova A.B.¹, Leont’ev I.N.², Smirnova N.V.¹
隶属关系:
1. Platov South Russian State Polytechnic University
2. South Federal University
期: 卷 54, 编号 6 (2018)
页面: 561-565
栏目: Article
URL: https://journals.rcsi.science/1023-1935/article/view/189419
DOI: https://doi.org/10.1134/S1023193518060113
ID: 189419

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PtIr/C electrocatalyst with the metal phase uniformly distributed over the carbon support surface and the average size of PtIr nanoparticles of 5.9 nm is synthesized by electrochemical dispersion of Pt₉₀Ir₁₀ alloy under the action of alternating pulse current. It is shown that the presence of iridium within the composition of a Pt/C catalyst lowers down the overpotential of CO oxidation and increases catalyst’s specific activity with respect to electrochemical oxidation of ethanol.