Durability Of Pt Catalysts Supported On Ordered Mesoporous ...

Skip to contentECS TransactionsDurability of Pt Catalysts Supported on Ordered Mesoporous Carbon for Proton Exchange Membrane Fuel Cells

Nam-In Kim, Jinhae Seong, Min-Ji Yang, Sung-Hwa Cho, Jun-Young Park, Hanshin CHOI, Sang Hoon Joo and Kyungjung Kwon

© 2013 ECS - The Electrochemical Society ECS Transactions, Volume 58, Number 1Citation Nam-In Kim et al 2013 ECS Trans. 58 1277DOI 10.1149/05801.1277ecst

Authors

Nam-In Kim

AFFILIATIONS

Sejong University

Jinhae Seong

AFFILIATIONS

Sejong University

Min-Ji Yang

AFFILIATIONS

Sejong University

Sung-Hwa Cho

AFFILIATIONS

Sejong University

Jun-Young Park

AFFILIATIONS

Sejong University

Hanshin CHOI

AFFILIATIONS

Korea Institute of Industrial Technology, Incheon 406-840, South Korea

Sang Hoon Joo

AFFILIATIONS

UNIST

Kyungjung Kwon

AFFILIATIONS

Sejong University

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Open scienceAuthors

Nam-In Kim

AFFILIATIONS

Sejong University

Jinhae Seong

AFFILIATIONS

Sejong University

Min-Ji Yang

AFFILIATIONS

Sejong University

Sung-Hwa Cho

AFFILIATIONS

Sejong University

Jun-Young Park

AFFILIATIONS

Sejong University

Hanshin CHOI

AFFILIATIONS

Korea Institute of Industrial Technology, Incheon 406-840, South Korea

Sang Hoon Joo

AFFILIATIONS

UNIST

Kyungjung Kwon

AFFILIATIONS

Sejong University

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Article information 1938-5862/58/1/1277

Abstract

Ordered mesoporous carbons (OMCs) are investigated as support materials of Pt catalyst in proton exchange membrane fuel cells. Four types of Pt/OMC catalysts are prepared and their electrochemical performances and durability are evaluated by cyclic voltammetry and linear sweep voltammetry using a rotating disk electrode system. Pt nanoparticles of 2-3 nm seem to be uniformly dispersed on the supports regardless of the kind of OMC. The different pore structure between CMK-3 and CMK-5 affects the surface areas of carbon supports and the resulting Pt nanoparticles with indicating that larger surface area accompanies higher oxygen reduction reaction (ORR) activity. Although the graphitization of carbon support from CMK-3 to CMK-3G reduces the surface area of carbon support, the surface area and the ORR activity of Pt nanoparticles on CMK-3G are increased. In general, the reductions in electrochemical surface area (ECSA) and ORR activity become more noticeable in proportion to the initial ECSA and ORR of Pt/OMC after accelerated durability test.

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Back to top10.1149/05801.1277ecst

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