Enhancement of CO tolerance on electrodeposited Pt anode for micro-PEM fuel cells

J. Y. Joo; J. K. Lee; Y. Kwon; C. R. Jung; E. S. Lee; J. H. Jang; H. J. Lee; S. Uhm; J. Lee

doi:10.1002/fuce.200900026

Enhancement of CO tolerance on electrodeposited Pt anode for micro-PEM fuel cells

J. Y. Joo, J. K. Lee, Y. Kwon, C. R. Jung, E. S. Lee, J. H. Jang, H. J. Lee, S. Uhm, J. Lee

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Electrodeposited and sprayed Pt anode catalysts were electrochemically characterised by CO stripping voltammetry as well as their activity to CO tolerance in micro-PEMFCs was demonstrated using polarisation measurements. While the onset and peak potentials of CO oxidation on the sprayed Pt/C varied with the CO coverage, these were lower (∼50 mV) with the electrodeposited Pt anode. This difference is attributed to the varying properties of the Pt-OH on either rough or smooth surface mainly created from different sizes of Pt particles. In fuel cell performance test, the electrodeposited Pt anode showed maximum power density of 360 mW cm^-2 and it was markedly (∼110 mW cm^-2) higher than the sprayed Pt/C anode. The enhanced activity of the electrodeposited Pt anode is also reflected by the fact that the entire amount of adsorbed CO becomes almost desorbed during the first three polarisation scans, while with the Pt/C anode at least five cycles are required.

Original language	English (US)
Pages (from-to)	926-931
Number of pages	6
Journal	Fuel Cells
Volume	10
Issue number	6
DOIs	https://doi.org/10.1002/fuce.200900026
State	Published - Dec 2010
Externally published	Yes

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology

Keywords

CO Tolerant Anode
Electrodeposited Pt
PEM Fuel Cells
Particle Size Effect
Recovery Test

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10.1002/fuce.200900026

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title = "Enhancement of CO tolerance on electrodeposited Pt anode for micro-PEM fuel cells",

abstract = "Electrodeposited and sprayed Pt anode catalysts were electrochemically characterised by CO stripping voltammetry as well as their activity to CO tolerance in micro-PEMFCs was demonstrated using polarisation measurements. While the onset and peak potentials of CO oxidation on the sprayed Pt/C varied with the CO coverage, these were lower (∼50 mV) with the electrodeposited Pt anode. This difference is attributed to the varying properties of the Pt-OH on either rough or smooth surface mainly created from different sizes of Pt particles. In fuel cell performance test, the electrodeposited Pt anode showed maximum power density of 360 mW cm-2 and it was markedly (∼110 mW cm-2) higher than the sprayed Pt/C anode. The enhanced activity of the electrodeposited Pt anode is also reflected by the fact that the entire amount of adsorbed CO becomes almost desorbed during the first three polarisation scans, while with the Pt/C anode at least five cycles are required.",

keywords = "CO Tolerant Anode, Electrodeposited Pt, PEM Fuel Cells, Particle Size Effect, Recovery Test",

author = "Joo, {J. Y.} and Lee, {J. K.} and Y. Kwon and Jung, {C. R.} and Lee, {E. S.} and Jang, {J. H.} and Lee, {H. J.} and S. Uhm and J. Lee",

year = "2010",

month = dec,

doi = "10.1002/fuce.200900026",

language = "English (US)",

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pages = "926--931",

journal = "Fuel Cells",

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AU - Joo, J. Y.

AU - Lee, J. K.

AU - Kwon, Y.

AU - Jung, C. R.

AU - Lee, E. S.

AU - Jang, J. H.

AU - Lee, H. J.

AU - Uhm, S.

AU - Lee, J.

PY - 2010/12

Y1 - 2010/12

N2 - Electrodeposited and sprayed Pt anode catalysts were electrochemically characterised by CO stripping voltammetry as well as their activity to CO tolerance in micro-PEMFCs was demonstrated using polarisation measurements. While the onset and peak potentials of CO oxidation on the sprayed Pt/C varied with the CO coverage, these were lower (∼50 mV) with the electrodeposited Pt anode. This difference is attributed to the varying properties of the Pt-OH on either rough or smooth surface mainly created from different sizes of Pt particles. In fuel cell performance test, the electrodeposited Pt anode showed maximum power density of 360 mW cm-2 and it was markedly (∼110 mW cm-2) higher than the sprayed Pt/C anode. The enhanced activity of the electrodeposited Pt anode is also reflected by the fact that the entire amount of adsorbed CO becomes almost desorbed during the first three polarisation scans, while with the Pt/C anode at least five cycles are required.

AB - Electrodeposited and sprayed Pt anode catalysts were electrochemically characterised by CO stripping voltammetry as well as their activity to CO tolerance in micro-PEMFCs was demonstrated using polarisation measurements. While the onset and peak potentials of CO oxidation on the sprayed Pt/C varied with the CO coverage, these were lower (∼50 mV) with the electrodeposited Pt anode. This difference is attributed to the varying properties of the Pt-OH on either rough or smooth surface mainly created from different sizes of Pt particles. In fuel cell performance test, the electrodeposited Pt anode showed maximum power density of 360 mW cm-2 and it was markedly (∼110 mW cm-2) higher than the sprayed Pt/C anode. The enhanced activity of the electrodeposited Pt anode is also reflected by the fact that the entire amount of adsorbed CO becomes almost desorbed during the first three polarisation scans, while with the Pt/C anode at least five cycles are required.

KW - CO Tolerant Anode

KW - Electrodeposited Pt

KW - PEM Fuel Cells

KW - Particle Size Effect

KW - Recovery Test

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Enhancement of CO tolerance on electrodeposited Pt anode for micro-PEM fuel cells

Abstract

All Science Journal Classification (ASJC) codes

Keywords

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