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Title: High-Performance Hydroxide Exchange Membrane Fuel Cells through Optimization of Relative Humidity, Backpressure and Catalyst Selection

Abstract

Hydroxide exchange membrane fuel cells (HEMFC) are an enticing power source for automobiles due to their low cost. Here we focus on improving the beginning-of-life performance of HEMFCs to a higher level with poly(aryl piperidinium) (PAP) membranes and ionomers. We reveal that lower RH and backpressure in anode than cathode can eliminate anode flooding and cathode dryout so that a balanced water management can be achieved. We also find that PtRu/C is a better anode catalyst than Pt/Ketjen Black due to the presence of Ru and Pt/Vulcan XC-72 is a better cathode catalyst than Pt/Ketjen Black due to its better mass transport properties. Once the preferred operating conditions and materials incorporated into the same cell, our HEMFCs achieved a peak power density of 1.89 W cm –2 in H 2/O 2 and 1.31 W cm –2 in H 2/air.

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]; ORCiD logo [1]
  1. Univ. of Delaware, Newark, DE (United States)
Publication Date:
Research Org.:
Univ. of Delaware, Newark, DE (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E)
OSTI Identifier:
1545484
Grant/Contract Number:  
AR0000771
Resource Type:
Accepted Manuscript
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 166; Journal Issue: 7; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
25 ENERGY STORAGE; Fuel Cells; fuel cell; high temperature; hydroxide exchange membrane

Citation Formats

Wang, Teng, Shi, Lin, Wang, Junhua, Zhao, Yun, Setzler, Brian P., Rojas-Carbonell, Santiago, and Yan, Yushan. High-Performance Hydroxide Exchange Membrane Fuel Cells through Optimization of Relative Humidity, Backpressure and Catalyst Selection. United States: N. p., 2019. Web. doi:10.1149/2.0361907jes.
Wang, Teng, Shi, Lin, Wang, Junhua, Zhao, Yun, Setzler, Brian P., Rojas-Carbonell, Santiago, & Yan, Yushan. High-Performance Hydroxide Exchange Membrane Fuel Cells through Optimization of Relative Humidity, Backpressure and Catalyst Selection. United States. doi:10.1149/2.0361907jes.
Wang, Teng, Shi, Lin, Wang, Junhua, Zhao, Yun, Setzler, Brian P., Rojas-Carbonell, Santiago, and Yan, Yushan. Tue . "High-Performance Hydroxide Exchange Membrane Fuel Cells through Optimization of Relative Humidity, Backpressure and Catalyst Selection". United States. doi:10.1149/2.0361907jes. https://www.osti.gov/servlets/purl/1545484.
@article{osti_1545484,
title = {High-Performance Hydroxide Exchange Membrane Fuel Cells through Optimization of Relative Humidity, Backpressure and Catalyst Selection},
author = {Wang, Teng and Shi, Lin and Wang, Junhua and Zhao, Yun and Setzler, Brian P. and Rojas-Carbonell, Santiago and Yan, Yushan},
abstractNote = {Hydroxide exchange membrane fuel cells (HEMFC) are an enticing power source for automobiles due to their low cost. Here we focus on improving the beginning-of-life performance of HEMFCs to a higher level with poly(aryl piperidinium) (PAP) membranes and ionomers. We reveal that lower RH and backpressure in anode than cathode can eliminate anode flooding and cathode dryout so that a balanced water management can be achieved. We also find that PtRu/C is a better anode catalyst than Pt/Ketjen Black due to the presence of Ru and Pt/Vulcan XC-72 is a better cathode catalyst than Pt/Ketjen Black due to its better mass transport properties. Once the preferred operating conditions and materials incorporated into the same cell, our HEMFCs achieved a peak power density of 1.89 W cm–2 in H2/O2 and 1.31 W cm–2 in H2/air.},
doi = {10.1149/2.0361907jes},
journal = {Journal of the Electrochemical Society},
number = 7,
volume = 166,
place = {United States},
year = {2019},
month = {5}
}

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