dc.citation.conferencePlace |
US |
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dc.citation.conferencePlace |
미국 Hawaii, Hawaiian Convention Center |
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dc.citation.title |
PRIME 2016 / 230th Electrochemical Society Meeting |
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dc.contributor.author |
Hwang, Sun Mi |
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dc.contributor.author |
Choi, YongMan |
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dc.contributor.author |
Joo, Sang Hoon |
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dc.contributor.author |
Yim, Sung Dae |
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dc.contributor.author |
Park, Gu-Gon |
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dc.date.accessioned |
2023-12-19T20:08:00Z |
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dc.date.available |
2023-12-19T20:08:00Z |
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dc.date.created |
2017-01-08 |
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dc.date.issued |
2016-10-05 |
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dc.description.abstract |
As the fuel cell market has been growing, the price competitiveness of polymer electrolyte fuel cell (PEFC) became the most important factor for its commercialization. In particular, the production of membrane-electrode assembly (MEA) consisting of Pt-based electrocatalyst is a critical hurdle for the cost reduction of PEFCs. Therefore, many researchers have veen focusing on the development of cost effective electrocatalysts such as non-precious metal based catalysts (NPMCs) or low content platinum based catalysts to minimize Pt loading by morphological and structural tunings with inexpensive transition metals. Recently, we reported the M-N doped ordered mesoporous porphyrinic carbon (M-OMPC, M=Fe, Co) which showed a comparable ORR activity to that of Pt/C in an acid medium. However, an inferior MEA performance of M-OMPC is a practical barrier because of high mass transport resistance and electrical resistance, which mainly comes from the thicker electrode of M-OMPC. In this study, we proposed a new approach for enhanced ORR activity as well as reduction of noble metal loading content via adding a trace of platinum nanoclusters on M-OMPC. The Pt/M-OMPC (Pt~5 wt%) hybrid catalyst showed an increased Pt based mass activity and specific activity by a factor of 7, compared to that of Pt/C (5 wt%) at 0.85 V RHE. |
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dc.identifier.bibliographicCitation |
PRIME 2016 / 230th Electrochemical Society Meeting |
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dc.identifier.uri |
https://scholarworks.unist.ac.kr/handle/201301/40202 |
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dc.identifier.url |
http://ma.ecsdl.org/content/MA2016-02/38/2589.abstract?sid=d56f416f-e438-46dd-89dc-7833a9351732 |
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dc.language |
영어 |
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dc.publisher |
Electrochemical Society |
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dc.title |
Ultra-Low Pt Decorated Porphyrinic Carbon Based Hybrid Electrocatalysts for Oxygen Reduction Reaction |
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dc.type |
Conference Paper |
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dc.date.conferenceDate |
2016-10-02 |
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