Oxide-core Pt-shell electrocatalysts for PEFCs: Photochemical preparation using SnO2 nanoparticles

M. Nagamine, Z. Noda, H. Manabe, J. Matsuda, A. Hayashi, K. Sasaki

研究成果: Chapter in Book/Report/Conference proceedingConference contribution

3 被引用数 (Scopus)

抄録

Core-shell electrocatalyst, in which a Pt atomic layer covers a nano-size core of a different metal, is attractive in reducing Pt usage for PEFC cathode electrocatalyst. Whilst such core-shell electrocatalysts exhibit very high mass activity for oxygen reduction reaction (ORR), their cost and durability still remain as a challenge. If inexpensive and thermochemically-stable conductive oxide could be applied to the core instead of a noble metal, cost reduction and durability improvement of such core-shell electrocatalysts may be expected. In this study, we try to develop oxide-core Pt-shell electrocatalysts by directly depositing Pt on SnO2 at an atomic level via a photochemical preparation procedure. SnO2 cores with a diameter down to ca. 3 nm could be prepared by comparing various preparation procedures of Sn02 and types of carbon-based materials acting as conductive fillers. Electrochemical activities of such oxide-core Pt-shell electrocatalysts are characterized and discussed.

本文言語英語
ホスト出版物のタイトルECS Transactions
編集者D.J. Jones, H. Gasteiger, H. Uchida, T.J. Schmidt, F. Buechi, K.E. Swider-Lyons, B.S. Pivovar, P.N. Pintauro, V.K. Ramani, J.M. Fenton, P. Strasser, K.E. Ayers, A.Z. Weber, T.F. Fuller, R.A. Mantz, H. Xu, C. Coutanceau, S. Mitsushima, S. Narayan, P. Shirvanian, Y.-T. Kim, Y. Gochi-Ponce
出版社Electrochemical Society Inc.
ページ531-540
ページ数10
13
ISBN(印刷版)9781510871731
DOI
出版ステータス出版済み - 2018
イベントSymposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting - Cancun, メキシコ
継続期間: 9 30 201810 4 2018

出版物シリーズ

名前ECS Transactions
番号13
86
ISSN(印刷版)1938-6737
ISSN(電子版)1938-5862

その他

その他Symposium on Polymer Electrolyte Fuel Cells and Electrolyzers 18, PEFC and E 2018 - AiMES 2018, ECS and SMEQ Joint International Meeting
国/地域メキシコ
CityCancun
Period9/30/1810/4/18

All Science Journal Classification (ASJC) codes

  • 工学(全般)

フィンガープリント

「Oxide-core Pt-shell electrocatalysts for PEFCs: Photochemical preparation using SnO<sup>2</sup> nanoparticles」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル