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Title: Fuel Cell Performance Implications of Membrane Electrode Assembly Fabrication with Platinum-Nickel Nanowire Catalysts

Abstract

Platinum-nickel nanowire (PtNiNW) catalysts have shown exceptionally high oxygen reduction mass activity in rotating disk electrode measurements. However, the ability to successfully incorporate PtNiNWs into high performance membrane electrode assemblies (MEAs) has been challenging due to their size, shape, density, dispersion characteristics, and corrosion-susceptible nickel core. We have investigated the impact of specific processing steps and electrode composition on observed fuel cell performance and electrochemical properties in order to optimize performance. We have found that nickel ion contamination is a major concern for PtNiNWs that can be addressed through ion exchange in fabricated/tested MEAs or by acid leaching of catalyst materials prior to MEA incorporation, with the latter being the more successful method. Additionally, decreased ionomer incorporation has led to the highest performance demonstrating 238 mA/mg Pt (0.9 V IR-free) for PtNiNWs (pre-leached to 80 wt% Pt) with 9 wt% ionomer incorporation.

Authors:
ORCiD logo [1];  [1]; ORCiD logo [1];  [2]; ORCiD logo [3];  [1]; ORCiD logo [2];  [3];  [1]
  1. National Renewable Energy Lab. (NREL), Golden, CO (United States). Chemistry and Nanoscience Center
  2. Colorado School of Mines, Golden, CO (United States). Dept. of Chemistry
  3. Carnegie Mellon Univ., Pittsburgh, PA (United States). Dept. of Mechanical Engineering
Publication Date:
Research Org.:
National Renewable Energy Lab. (NREL), Golden, CO (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F)
OSTI Identifier:
1425998
Alternate Identifier(s):
OSTI ID: 1430822
Report Number(s):
NREL/JA-5900-70607
Journal ID: ISSN 0013-4651
Grant/Contract Number:  
AC36-08GO28308
Resource Type:
Journal Article: Published Article
Journal Name:
Journal of the Electrochemical Society
Additional Journal Information:
Journal Volume: 165; Journal Issue: 3; Journal ID: ISSN 0013-4651
Publisher:
The Electrochemical Society
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; fuel cells; membrane electrode assembly; unsupported electrocatalyst

Citation Formats

Mauger, Scott A., Neyerlin, K. C., Alia, Shaun M., Ngo, Chilan, Babu, Siddharth Komini, Hurst, Katherine E., Pylypenko, Svitlana, Litster, Shawn, and Pivovar, Bryan S.. Fuel Cell Performance Implications of Membrane Electrode Assembly Fabrication with Platinum-Nickel Nanowire Catalysts. United States: N. p., 2018. Web. doi:10.1149/2.1061803jes.
Mauger, Scott A., Neyerlin, K. C., Alia, Shaun M., Ngo, Chilan, Babu, Siddharth Komini, Hurst, Katherine E., Pylypenko, Svitlana, Litster, Shawn, & Pivovar, Bryan S.. Fuel Cell Performance Implications of Membrane Electrode Assembly Fabrication with Platinum-Nickel Nanowire Catalysts. United States. doi:10.1149/2.1061803jes.
Mauger, Scott A., Neyerlin, K. C., Alia, Shaun M., Ngo, Chilan, Babu, Siddharth Komini, Hurst, Katherine E., Pylypenko, Svitlana, Litster, Shawn, and Pivovar, Bryan S.. Tue . "Fuel Cell Performance Implications of Membrane Electrode Assembly Fabrication with Platinum-Nickel Nanowire Catalysts". United States. doi:10.1149/2.1061803jes.
@article{osti_1425998,
title = {Fuel Cell Performance Implications of Membrane Electrode Assembly Fabrication with Platinum-Nickel Nanowire Catalysts},
author = {Mauger, Scott A. and Neyerlin, K. C. and Alia, Shaun M. and Ngo, Chilan and Babu, Siddharth Komini and Hurst, Katherine E. and Pylypenko, Svitlana and Litster, Shawn and Pivovar, Bryan S.},
abstractNote = {Platinum-nickel nanowire (PtNiNW) catalysts have shown exceptionally high oxygen reduction mass activity in rotating disk electrode measurements. However, the ability to successfully incorporate PtNiNWs into high performance membrane electrode assemblies (MEAs) has been challenging due to their size, shape, density, dispersion characteristics, and corrosion-susceptible nickel core. We have investigated the impact of specific processing steps and electrode composition on observed fuel cell performance and electrochemical properties in order to optimize performance. We have found that nickel ion contamination is a major concern for PtNiNWs that can be addressed through ion exchange in fabricated/tested MEAs or by acid leaching of catalyst materials prior to MEA incorporation, with the latter being the more successful method. Additionally, decreased ionomer incorporation has led to the highest performance demonstrating 238 mA/mgPt (0.9 V IR-free) for PtNiNWs (pre-leached to 80 wt% Pt) with 9 wt% ionomer incorporation.},
doi = {10.1149/2.1061803jes},
journal = {Journal of the Electrochemical Society},
number = 3,
volume = 165,
place = {United States},
year = {Tue Mar 13 00:00:00 EDT 2018},
month = {Tue Mar 13 00:00:00 EDT 2018}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1149/2.1061803jes

Citation Metrics:
Cited by: 3 works
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Works referenced in this record:

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