Effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability

Paul T. Yu; Wenbin Gu; Frederick T. Wagner; Hubert Gasteiger

Effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability

Paul T. Yu
, Wenbin Gu
, Frederick T. Wagner
, Hubert Gasteiger

General Motors

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

1 Scopus citations

Abstract

Start/stop degradation of proton exchange membrane (PEM) fuel cell systems is one of the major contributors for stack voltage degradation in automotive applications. In this paper, the effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability was studied. Membrane electrode assemblies (MEAs) with three different anode catalyst loadings were investigated by simulated start/stop tests using a 50 cm2 single cell. It was found that a decrease of anode catalyst loading from 0.4 mg/cm2 to 0.05 mg/cm2 improves start/stop voltage degradation by a factor of 1.8 without compromising fuel cell performance. This improved start/stop durability is consistent with kinetic model predictions based on the lowered oxygen reduction kinetics on low-loaded anode electrodes. This work demonstrates that the lower the oxygen reduction kinetics of the anode catalyst, the less the start/stop voltage degradation.

Original language	English
Title of host publication	234th ACS National Meeting, Abstracts of Scientific Papers
State	Published - 2007
Externally published	Yes
Event	234th ACS National Meeting - Boston, MA, United States Duration: 19 Aug 2007 → 23 Aug 2007

Publication series

Name	ACS National Meeting Book of Abstracts
ISSN (Print)	0065-7727

Conference

Conference	234th ACS National Meeting
Country/Territory	United States
City	Boston, MA
Period	19/08/07 → 23/08/07

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Cite this

@inproceedings{93d5ff7c323a4176b4302ac87d24aa19,

title = "Effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability",

abstract = "Start/stop degradation of proton exchange membrane (PEM) fuel cell systems is one of the major contributors for stack voltage degradation in automotive applications. In this paper, the effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability was studied. Membrane electrode assemblies (MEAs) with three different anode catalyst loadings were investigated by simulated start/stop tests using a 50 cm2 single cell. It was found that a decrease of anode catalyst loading from 0.4 mg/cm2 to 0.05 mg/cm2 improves start/stop voltage degradation by a factor of 1.8 without compromising fuel cell performance. This improved start/stop durability is consistent with kinetic model predictions based on the lowered oxygen reduction kinetics on low-loaded anode electrodes. This work demonstrates that the lower the oxygen reduction kinetics of the anode catalyst, the less the start/stop voltage degradation.",

author = "Yu, \{Paul T.\} and Wenbin Gu and Wagner, \{Frederick T.\} and Hubert Gasteiger",

year = "2007",

language = "English",

isbn = "0841269556",

series = "ACS National Meeting Book of Abstracts",

booktitle = "234th ACS National Meeting, Abstracts of Scientific Papers",

note = "234th ACS National Meeting ; Conference date: 19-08-2007 Through 23-08-2007",

}

TY - GEN

T1 - Effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability

AU - Yu, Paul T.

AU - Gu, Wenbin

AU - Wagner, Frederick T.

AU - Gasteiger, Hubert

PY - 2007

Y1 - 2007

N2 - Start/stop degradation of proton exchange membrane (PEM) fuel cell systems is one of the major contributors for stack voltage degradation in automotive applications. In this paper, the effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability was studied. Membrane electrode assemblies (MEAs) with three different anode catalyst loadings were investigated by simulated start/stop tests using a 50 cm2 single cell. It was found that a decrease of anode catalyst loading from 0.4 mg/cm2 to 0.05 mg/cm2 improves start/stop voltage degradation by a factor of 1.8 without compromising fuel cell performance. This improved start/stop durability is consistent with kinetic model predictions based on the lowered oxygen reduction kinetics on low-loaded anode electrodes. This work demonstrates that the lower the oxygen reduction kinetics of the anode catalyst, the less the start/stop voltage degradation.

AB - Start/stop degradation of proton exchange membrane (PEM) fuel cell systems is one of the major contributors for stack voltage degradation in automotive applications. In this paper, the effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability was studied. Membrane electrode assemblies (MEAs) with three different anode catalyst loadings were investigated by simulated start/stop tests using a 50 cm2 single cell. It was found that a decrease of anode catalyst loading from 0.4 mg/cm2 to 0.05 mg/cm2 improves start/stop voltage degradation by a factor of 1.8 without compromising fuel cell performance. This improved start/stop durability is consistent with kinetic model predictions based on the lowered oxygen reduction kinetics on low-loaded anode electrodes. This work demonstrates that the lower the oxygen reduction kinetics of the anode catalyst, the less the start/stop voltage degradation.

UR - https://www.scopus.com/pages/publications/37349053596

M3 - Conference contribution

AN - SCOPUS:37349053596

SN - 0841269556

SN - 9780841269552

T3 - ACS National Meeting Book of Abstracts

BT - 234th ACS National Meeting, Abstracts of Scientific Papers

T2 - 234th ACS National Meeting

Y2 - 19 August 2007 through 23 August 2007

ER -

Effect of low anode catalyst loadings on automotive PEM fuel cell start/stop durability

Abstract

Publication series

Conference

UN SDGs

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