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Title: Experimental studies on the effects of sheet resistance and wettability of catalyst layer on electro-catalytic activities for oxygen evolution reaction in proton exchange membrane electrolysis cells

Abstract

As the most important part of electrochemical reaction in proton exchange membrane electrolysis cells (PEMECs) for water splitting, oxygen evolution reaction (OER) occurs at the anode catalyst layer (CL). The distribution of the OER site is affected by many factors, such as properties of CL, operation parameters, procedures, etc. To study the effects of properties of CLs on the distribution of OER site on the CL, and consequently affect the performance of PEMECs, CLs with different sheet resistances are tested under different operation conditions. Furthermore, the phenomena of OER on CLs are captured by a high-speed and micro-scale visualization system in-situ and analysed coupled with electrochemical results. The results in this work show that both sheet resistance and wettability of CLs have significant impact on the distribution of the OER site, which can help optimize the design of membrane electrode assembly and improve the operating parameters for electrochemical devices.

Authors:
ORCiD logo [1];  [1];  [1]; ORCiD logo [2];  [2];  [2];  [2]; ORCiD logo [1]
  1. Univ. of Tennessee, Knoxville, TN (United States)
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1660244
Alternate Identifier(s):
OSTI ID: 1670479
Report Number(s):
NREL/JA-5900-77542
Journal ID: ISSN 0360-3199; MainId:27478;UUID:82efce70-fd4a-4866-86b5-0f2c5f6b230a;MainAdminID:17341
Grant/Contract Number:  
AC36-08GO28308; FE0011585
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Hydrogen Energy
Additional Journal Information:
Journal Volume: 45; Journal Issue: 51; Journal ID: ISSN 0360-3199
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; oxygen evolution reaction; proton exchange membrane electrolysis cell; sheet resistance; visualization; wettability

Citation Formats

Mo, Jingke, Yang, Gaoqiang, Li, Yifan, Kang, Zhenye, Bender, Guido, Pivovar, Bryan S., Green, Jr., Johney B., and Zhang, Feng-Yuan. Experimental studies on the effects of sheet resistance and wettability of catalyst layer on electro-catalytic activities for oxygen evolution reaction in proton exchange membrane electrolysis cells. United States: N. p., 2020. Web. https://doi.org/10.1016/j.ijhydene.2020.07.087.
Mo, Jingke, Yang, Gaoqiang, Li, Yifan, Kang, Zhenye, Bender, Guido, Pivovar, Bryan S., Green, Jr., Johney B., & Zhang, Feng-Yuan. Experimental studies on the effects of sheet resistance and wettability of catalyst layer on electro-catalytic activities for oxygen evolution reaction in proton exchange membrane electrolysis cells. United States. https://doi.org/10.1016/j.ijhydene.2020.07.087
Mo, Jingke, Yang, Gaoqiang, Li, Yifan, Kang, Zhenye, Bender, Guido, Pivovar, Bryan S., Green, Jr., Johney B., and Zhang, Feng-Yuan. Sat . "Experimental studies on the effects of sheet resistance and wettability of catalyst layer on electro-catalytic activities for oxygen evolution reaction in proton exchange membrane electrolysis cells". United States. https://doi.org/10.1016/j.ijhydene.2020.07.087. https://www.osti.gov/servlets/purl/1660244.
@article{osti_1660244,
title = {Experimental studies on the effects of sheet resistance and wettability of catalyst layer on electro-catalytic activities for oxygen evolution reaction in proton exchange membrane electrolysis cells},
author = {Mo, Jingke and Yang, Gaoqiang and Li, Yifan and Kang, Zhenye and Bender, Guido and Pivovar, Bryan S. and Green, Jr., Johney B. and Zhang, Feng-Yuan},
abstractNote = {As the most important part of electrochemical reaction in proton exchange membrane electrolysis cells (PEMECs) for water splitting, oxygen evolution reaction (OER) occurs at the anode catalyst layer (CL). The distribution of the OER site is affected by many factors, such as properties of CL, operation parameters, procedures, etc. To study the effects of properties of CLs on the distribution of OER site on the CL, and consequently affect the performance of PEMECs, CLs with different sheet resistances are tested under different operation conditions. Furthermore, the phenomena of OER on CLs are captured by a high-speed and micro-scale visualization system in-situ and analysed coupled with electrochemical results. The results in this work show that both sheet resistance and wettability of CLs have significant impact on the distribution of the OER site, which can help optimize the design of membrane electrode assembly and improve the operating parameters for electrochemical devices.},
doi = {10.1016/j.ijhydene.2020.07.087},
journal = {International Journal of Hydrogen Energy},
number = 51,
volume = 45,
place = {United States},
year = {2020},
month = {8}
}