Photochemical preparation of Pt electrocatalysts on Sn02 support for PEFCs

M. Nagamine, Z. Noda, S. Matsumoto, J. Matsuda, A. Hayashi, K. Sasaki

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Core-shell electrocatalyst, in which a Pt monolayer or multilayer shell covers a nano-particle core of a different metal, exhibits high mass activity due to the high utilization of Pt. However, it is still required to improve its durability. If a thermochemically-stable conductive oxide is applied to the core with high durability, such an oxide-core Pt-shell electrocatalyst may exhibit high durability. In this study, we try to realize atomic-level Pt deposition on such a stable oxide to prepare core-shell electrocatalysts, where SnO2 rather than (noble) metals is applied as the core of such electrocatalysts. A photochemical procedure is applied to deposit Pt on SnO2. The dependencies of Pt shell deposition and electrocatalytic activity are analyzed on ultraviolet (UV) irradiation time, suspension temperature during UV irradiation, and the kind and concentration of the sacrificial reagent.

Original languageEnglish
Title of host publicationECS Transactions
EditorsP. A. Shirvanian, V. Ramani, Y.-T. Kim, H. A. Gasteiger, K. Shinohara, K. E. Ayers, B. S. Pivovar, D. J. Jones, H. Uchida, K. A. Perry, S. Mitsushima, H. Xu, T. J. Schmidt, J. M. Fenton, T. F. Fuller, P. Strasser, F. Buechi, K. E. Swider-Lyons, R. A. Mantz, S. Narayan, P. N. Pintauro, C. Coutanceau, A. Z. Weber
PublisherElectrochemical Society Inc.
Pages773-780
Number of pages8
Edition8
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2017
EventSymposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting - National Harbor, United States
Duration: Oct 1 2017Oct 5 2017

Publication series

NameECS Transactions
Number8
Volume80
ISSN (Print)1938-6737
ISSN (Electronic)1938-5862

Other

OtherSymposium on Polymer Electrolyte Fuel Cells 17, PEFC 2017 - 232nd ECS Meeting
CountryUnited States
CityNational Harbor
Period10/1/1710/5/17

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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