Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy

Yong-Jun Leng; Xin Wang; I-Ming Hsing

doi:10.1016/S0022-0728(02)00916-6

Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy

Yong-Jun Leng
, Xin Wang
, I-Ming Hsing

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

52 Citations (Scopus)

Abstract

Assessment of CO-tolerance for different anode catalysts (Pt/C, PtRu/C and PtSn/C) at 50°C and PtRu/C at different operating temperatures in the polymer electrolyte fuel cell (PEFC) was evaluated using ac impedance spectroscopy. Impedance measurements for the oxidation of a H₂+2% CO mixture reported that at a critical potential (referred to as the onset potential), 'pseudo-inductive' behavior appears, the value of which is different for different anode catalysts (0.70, 0.45 and 0.30 V for Pt/C, PtRu/C and PtSn/C at 50°C, respectively) and strongly dependent upon working temperatures (0.50, 0.45 and 0.40 V for PtRu/C at 25, 50 and 70°C, respectively). Based on that, we proposed that this onset potential for the 'pseudo-inductive' behavior can be used as a new criterion for the evaluation of CO-tolerance for different anode catalysts at different operating temperatures. © 2002 Published by Elsevier Science B.V.

Original language	English
Pages (from-to)	145-152
Journal	Journal of Electroanalytical Chemistry
Volume	528
Issue number	1-2
DOIs	https://doi.org/10.1016/S0022-0728(02)00916-6
Publication status	Published - 14 Jun 2002
Externally published	Yes

Bibliographical note

Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

Funding

The authors gratefully acknowledge the Innovation and Technology Commission of The Hong Kong SAR Government (UIM 15) for the funding support.

UN SDGs

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

SDG 7 Affordable and Clean Energy

Research Keywords

Ac impedance
Anodic oxidation
Cyclic voltammetry
Electrocatalysis
Fuel cell

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10.1016/S0022-0728(02)00916-6

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title = "Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy",

abstract = "Assessment of CO-tolerance for different anode catalysts (Pt/C, PtRu/C and PtSn/C) at 50°C and PtRu/C at different operating temperatures in the polymer electrolyte fuel cell (PEFC) was evaluated using ac impedance spectroscopy. Impedance measurements for the oxidation of a H2+2\% CO mixture reported that at a critical potential (referred to as the onset potential), 'pseudo-inductive' behavior appears, the value of which is different for different anode catalysts (0.70, 0.45 and 0.30 V for Pt/C, PtRu/C and PtSn/C at 50°C, respectively) and strongly dependent upon working temperatures (0.50, 0.45 and 0.40 V for PtRu/C at 25, 50 and 70°C, respectively). Based on that, we proposed that this onset potential for the 'pseudo-inductive' behavior can be used as a new criterion for the evaluation of CO-tolerance for different anode catalysts at different operating temperatures. {\textcopyright} 2002 Published by Elsevier Science B.V.",

keywords = "Ac impedance, Anodic oxidation, Cyclic voltammetry, Electrocatalysis, Fuel cell",

author = "Yong-Jun Leng and Xin Wang and I-Ming Hsing",

note = "Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].",

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Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy. / Leng, Yong-Jun; Wang, Xin; Hsing, I-Ming.
In: Journal of Electroanalytical Chemistry, Vol. 528, No. 1-2, 14.06.2002, p. 145-152.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

TY - JOUR

T1 - Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy

AU - Leng, Yong-Jun

AU - Wang, Xin

AU - Hsing, I-Ming

N1 - Publication details (e.g. title, author(s), publication statuses and dates) are captured on an “AS IS” and “AS AVAILABLE” basis at the time of record harvesting from the data source. Suggestions for further amendments or supplementary information can be sent to [email protected].

PY - 2002/6/14

Y1 - 2002/6/14

N2 - Assessment of CO-tolerance for different anode catalysts (Pt/C, PtRu/C and PtSn/C) at 50°C and PtRu/C at different operating temperatures in the polymer electrolyte fuel cell (PEFC) was evaluated using ac impedance spectroscopy. Impedance measurements for the oxidation of a H2+2% CO mixture reported that at a critical potential (referred to as the onset potential), 'pseudo-inductive' behavior appears, the value of which is different for different anode catalysts (0.70, 0.45 and 0.30 V for Pt/C, PtRu/C and PtSn/C at 50°C, respectively) and strongly dependent upon working temperatures (0.50, 0.45 and 0.40 V for PtRu/C at 25, 50 and 70°C, respectively). Based on that, we proposed that this onset potential for the 'pseudo-inductive' behavior can be used as a new criterion for the evaluation of CO-tolerance for different anode catalysts at different operating temperatures. © 2002 Published by Elsevier Science B.V.

AB - Assessment of CO-tolerance for different anode catalysts (Pt/C, PtRu/C and PtSn/C) at 50°C and PtRu/C at different operating temperatures in the polymer electrolyte fuel cell (PEFC) was evaluated using ac impedance spectroscopy. Impedance measurements for the oxidation of a H2+2% CO mixture reported that at a critical potential (referred to as the onset potential), 'pseudo-inductive' behavior appears, the value of which is different for different anode catalysts (0.70, 0.45 and 0.30 V for Pt/C, PtRu/C and PtSn/C at 50°C, respectively) and strongly dependent upon working temperatures (0.50, 0.45 and 0.40 V for PtRu/C at 25, 50 and 70°C, respectively). Based on that, we proposed that this onset potential for the 'pseudo-inductive' behavior can be used as a new criterion for the evaluation of CO-tolerance for different anode catalysts at different operating temperatures. © 2002 Published by Elsevier Science B.V.

KW - Ac impedance

KW - Anodic oxidation

KW - Cyclic voltammetry

KW - Electrocatalysis

KW - Fuel cell

UR - https://www.scopus.com/pages/publications/0037076742

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-0037076742&origin=recordpage

U2 - 10.1016/S0022-0728(02)00916-6

DO - 10.1016/S0022-0728(02)00916-6

M3 - RGC 21 - Publication in refereed journal

SN - 0022-0728

VL - 528

SP - 145

EP - 152

JO - Journal of Electroanalytical Chemistry

JF - Journal of Electroanalytical Chemistry

IS - 1-2

ER -

Assessment of CO-tolerance for different Pt-alloy anode catalysts in a polymer electrolyte fuel cell using ac impedance spectroscopy

Abstract

Bibliographical note

Funding

UN SDGs

Research Keywords

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