Separation and characterization of overpotentials in electrochemical hydrogen pump with a reference electrode

Yanming Hao, Hironori Nakajima, Akiko Inada, Kazunari Sasaki, Kohei Ito

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

Abstract

Overpotentials included in electrochemical hydrogen pump are separated with using a reference electrode. Separation result shows that non-ohmic overpotential in cathode is larger than that in anode. This result is also confirmed by electrochemical impedance spectra measurement, which shows impedance spectra of cathode is larger than that of anode. Volmer-Heyrovsky-Tafel mechanism is used to explain the separation result. Simulation result with using this mechanism suggests that reactions in anode and cathode are dominated by different mechanisms, and reaction rate of cathode is 2 orders of magnitude slower than that of anode.

Original languageEnglish
Title of host publicationPolymer Electrolyte Fuel Cells 16, PEFC 16
EditorsD. J. Jones, F. N. Buchi, B. S. Pivovar, T. F. Fuller, A. Z. Weber, L. Zhuang, C. Coutanceau, P. N. Pintauro, K. E. Ayers, V. K. Ramani, P. Strasser, R. A. Mantz, S. R. Narayanan, S. Mitsushima, T. J. Schmidt, S. G. Sun, H. Uchida, H. A. Gasteiger, K. Swider-Lyons, J. M. Fenton, Y. T. Kim, K. A. Perry, P. Shirvanian, K. Shinohara
PublisherElectrochemical Society Inc.
Pages1155-1163
Number of pages9
Edition14
ISBN (Electronic)9781607685395
DOIs
Publication statusPublished - 2016
EventSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting - Honolulu, United States
Duration: Oct 2 2016Oct 7 2016

Publication series

NameECS Transactions
Number14
Volume75
ISSN (Print)1938-5862
ISSN (Electronic)1938-6737

Other

OtherSymposium on Polymer Electrolyte Fuel Cells 16, PEFC 2016 - PRiME 2016/230th ECS Meeting
Country/TerritoryUnited States
CityHonolulu
Period10/2/1610/7/16

All Science Journal Classification (ASJC) codes

  • Engineering(all)

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