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Tailoring a Three-Phase Microenvironment for High-Performance Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells

Zhao, Zipeng and Hossain, Md Delowar and Xu, Chunchuan and Lu, Zijie and Liu, Yi-Sheng and Hsieh, Shang-Hsien and Lee, Ilkeun and Gao, Wenpei and Yang, Jun and Merinov, Boris V. and Xue, Wang and Liu, Zeyan and Zhou, Jingxuan and Luo, Zhengtang and Pan, Xiaoqing and Zaera, Francisco and Guo, Jinghua and Duan, Xiangfeng and Goddard, William A., III and Huang, Yu (2020) Tailoring a Three-Phase Microenvironment for High-Performance Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells. Matter, 3 (5). pp. 1774-1790. ISSN 2590-2385. https://resolver.caltech.edu/CaltechAUTHORS:20201023-083340236

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Abstract

Despite tremendous progress in catalyst development for rate-limiting cathodic oxygen reduction reaction (ORR), reducing Pt usage while meeting performance requirements in practical proton exchange membrane fuel cells (PEMFCs) remains a challenge. The ORR in PEMFCs occurs at a catalyst–electrolyte–gas three-phase interface. A desirable interface should exhibit highly active and available catalytic sites, as well as allow efficient oxygen and proton feeding to the catalytic sites and timely removal of water to avoid interface flooding. Here, we report the design of a three-phase microenvironment in PEFMCs, showing that carbon surface chemistry can be tuned to modulate its interaction with the ionomers and create favorable transport paths for rapid delivery of both reactants and products. With such an elaborate interfacial design, for the first time we have demonstrated PEMFCs with all key ORR catalyst performance metrics, including mass activity, rated power, and durability, surpassing the US Department of Energy targets.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1016/j.matt.2020.09.025DOIArticle
ORCID:
AuthorORCID
Zhao, Zipeng0000-0003-1135-6742
Hossain, Md Delowar0000-0002-8340-7409
Lu, Zijie0000-0002-6544-0352
Hsieh, Shang-Hsien0000-0002-8475-7486
Gao, Wenpei0000-0002-2776-2676
Yang, Jun0000-0001-8701-9297
Merinov, Boris V.0000-0002-2783-4262
Zhou, Jingxuan0000-0002-6978-0901
Luo, Zhengtang0000-0002-5134-9240
Pan, Xiaoqing0000-0002-0965-8568
Zaera, Francisco0000-0002-0128-7221
Guo, Jinghua0000-0002-8576-2172
Duan, Xiangfeng0000-0002-4321-6288
Goddard, William A., III0000-0003-0097-5716
Huang, Yu0000-0003-1793-0741
Additional Information:© 2020 Elsevier. Received 28 July 2020, Revised 6 September 2020, Accepted 28 September 2020, Available online 21 October 2020.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N00014-18-1-2155
NSFCHE-1854439
Office of Naval Research (ONR)N00014-18-1-2271
Subject Keywords:three-phase interface; fuel cell; oxygen reduction reaction; carbon engineering
Issue or Number:5
Record Number:CaltechAUTHORS:20201023-083340236
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20201023-083340236
Official Citation:Zipeng Zhao, Md Delowar Hossain, Chunchuan Xu, Zijie Lu, Yi-Sheng Liu, Shang-Hsien Hsieh, Ilkeun Lee, Wenpei Gao, Jun Yang, Boris V. Merinov, Wang Xue, Zeyan Liu, Jingxuan Zhou, Zhengtang Luo, Xiaoqing Pan, Francisco Zaera, Jinghua Guo, Xiangfeng Duan, William A. Goddard, Yu Huang, Tailoring a Three-Phase Microenvironment for High-Performance Oxygen Reduction Reaction in Proton Exchange Membrane Fuel Cells, Matter, Volume 3, Issue 5, 2020, Pages 1774-1790, ISSN 2590-2385, https://doi.org/10.1016/j.matt.2020.09.025. (http://www.sciencedirect.com/science/article/pii/S2590238520305233)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:106245
Collection:CaltechAUTHORS
Deposited By: George Porter
Deposited On:23 Oct 2020 17:03
Last Modified:10 Nov 2020 21:44

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