Rotating disk electrode-online electrochemical mass spectrometry for oxygen reduction reaction on pt electrode surfaces

H. Tsurumaki, T. Mochizuki, H. Tei, N. Todoroki, T. Wadayama

研究成果: 書籍の章/レポート/Proceedings会議への寄与査読

1 被引用数 (Scopus)

抄録

Potential-dependent molecular behavior of dissolved O2 in the vicinity of a polycrystalline Pt electrode surface was studied in O2-saturated 0.1 M HCIO4 solution using a newly developed online electrochemical mass spectrometry (OLEMS) with rotating disk electrode (RDE) method (RDE-OLEMS). A gas sampling tip was positioned at-50 urn from the electrode surface; O2 concentration in the vicinity of the Pt electrode at open circuit potential (~0.8 V vs. RHE) depended on the disk rotation rates, and linear sweep voltammetry (LSV) of the Pt electrode showed diffusion-limiting currents in the RDE-OLEMS layout. Furthermore, simultaneously recorded RDE-OLEMS data for the potential-dependent O2 concentration were consistent with the LSV data recorded for a negative-going sweep. We have successfully applied the newly developed RDE-OLEMS method and it is effective for in-situ analysis of gaseous electrochemical reaction products and dissolved molecules in the vicinity of the electrode under electrochemical conditions.

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447-452
ページ数6
13
ISBN(電子版)9781607688600
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: 2018 9月 302018 10月 4

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

会議

会議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
Period18/9/3018/10/4

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