1. Institute for Molecular Science, 38 Nishigo-naka, Myodaiji, Okazaki, Aichi, 444-8585, Japan 2. Research Center for Materials Science, Nagoya University, Furo, Chikusa, Aichi, 464-8602, Japan 3. Department of Chemistry, Faculty of Science, Kasetsart University, Bangkok, 10903, Thailand 4. Innovation Research Center for Fuel Cells, University of Electro-Communications, 1-5-1 Chofugaoka, Chofu, Tokyo, 182-8585, Japan 5. Japan Synchrotron Radiation Research Institute, SPring-8, 1-1-1 Koto, Sayo, Hyogo, 679-5198, Japan 6. Department of Mathematics and Material Sciences, Faculty of Integrated Arts and Sciences, The University of Tokushima, 1-1 Minamijosanjima, Tokushima, 770-8502, Japan
ISSN:1572-9028
文摘
The transitional states of a Pt/C cathode electrocatalyst in the membrane electrode assembly of a polymer electrolyte fuel cell during loading with transient voltages were systematically analyzed by in situ time-resolved X-ray absorption fine structure with time resolution of 100?ms. The results suggest that the local coordination of the Pt cathode electrocatalyst was unaffected by the transient voltages during both rapid and gradual loading over 0-0?s.