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Title: Impact of ionomer adsorption on alkaline hydrogen oxidation activity and fuel cell performance

Abstract

The adsorption of the ionomer components significantly impacts the activity of hydrogen oxidation reaction (HOR) catalysts under high pH conditions. Two specific adsorptions, i.e., (i) cation-hydroxide-water co-adsorption and (ii) phenyl group adsorption, on the surface of platinum group metal HOR catalysts were identified as the performance-limiting factors for anion-exchange membrane fuel cells (AEMFCs). Here, we review the main characteristics of the surface adsorptions, their impact on the performance of HOR half-cell and AEMFC, and the mitigation strategies. This review emphasizes important aspects in the design of electrocatalysts and ionomers for improved AEMFC performance.

Authors:
 [1]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
  2. Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F)
OSTI Identifier:
1484662
Report Number(s):
LA-UR-18-28281
Journal ID: ISSN 2451-9103
Grant/Contract Number:  
89233218CNA000001
Resource Type:
Accepted Manuscript
Journal Name:
Current Opinion in Electrochemistry
Additional Journal Information:
Journal Volume: 12; Journal ID: ISSN 2451-9103
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Energy Sciences

Citation Formats

Li, Dongguo, Chung, Hoon T., Maurya, Sandip, Matanovic, Ivana, and Kim, Yu Seung. Impact of ionomer adsorption on alkaline hydrogen oxidation activity and fuel cell performance. United States: N. p., 2018. Web. doi:10.1016/j.coelec.2018.11.012.
Li, Dongguo, Chung, Hoon T., Maurya, Sandip, Matanovic, Ivana, & Kim, Yu Seung. Impact of ionomer adsorption on alkaline hydrogen oxidation activity and fuel cell performance. United States. doi:10.1016/j.coelec.2018.11.012.
Li, Dongguo, Chung, Hoon T., Maurya, Sandip, Matanovic, Ivana, and Kim, Yu Seung. Thu . "Impact of ionomer adsorption on alkaline hydrogen oxidation activity and fuel cell performance". United States. doi:10.1016/j.coelec.2018.11.012. https://www.osti.gov/servlets/purl/1484662.
@article{osti_1484662,
title = {Impact of ionomer adsorption on alkaline hydrogen oxidation activity and fuel cell performance},
author = {Li, Dongguo and Chung, Hoon T. and Maurya, Sandip and Matanovic, Ivana and Kim, Yu Seung},
abstractNote = {The adsorption of the ionomer components significantly impacts the activity of hydrogen oxidation reaction (HOR) catalysts under high pH conditions. Two specific adsorptions, i.e., (i) cation-hydroxide-water co-adsorption and (ii) phenyl group adsorption, on the surface of platinum group metal HOR catalysts were identified as the performance-limiting factors for anion-exchange membrane fuel cells (AEMFCs). Here, we review the main characteristics of the surface adsorptions, their impact on the performance of HOR half-cell and AEMFC, and the mitigation strategies. This review emphasizes important aspects in the design of electrocatalysts and ionomers for improved AEMFC performance.},
doi = {10.1016/j.coelec.2018.11.012},
journal = {Current Opinion in Electrochemistry},
number = ,
volume = 12,
place = {United States},
year = {2018},
month = {11}
}

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