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나노물질 및 화학반응 연구단
나노물질 및 화학반응 연구단
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Nitrogen-Doped Pt/C Electrocatalysts with Enhanced Activity and Stability toward the Oxygen Reduction Reaction

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Title
Nitrogen-Doped Pt/C Electrocatalysts with Enhanced Activity and Stability toward the Oxygen Reduction Reaction
Author(s)
Sang-Il Choi; Su-Un Lee; Ran Choi; Joon T. Park; Sang Woo Han
Publication Date
2013-07
Journal
CHEMPLUSCHEM, v.78, no.10, pp.1252 - 1257
Publisher
WILEY-V C H VERLAG GMBH
Abstract
Recently, nitrogen-doped carbon materials have proved to be effective catalytic platforms for the oxygen reduction reaction (ORR). Despite the recent synthetic advances for the preparation of nitrogen-incorporated carbon materials, the low-temperature and water-based synthesis of nitrogen-doped carbon materials has rarely been explored due to the difficulties in nitrogen- doping under such mild conditions. Here, nitrogendoped Pt/C (Pt/NC) catalysts are prepared using a facile, lowtemperature, aqueous-phase method. Hydrazine treatment of a Pt/C catalyst successfully yields Pt/NC with controlled nitrogen content. The as-prepared Pt/NC catalysts exhibit enhanced electrocatalytic activity and stability toward ORR in comparison to nitrogen-free Pt/C, and their ORR activities are highly dependent on the level of nitrogen-doping. The Pt/NC catalyst containing 2.0 at% nitrogen results in the largest improvement of ORR activity.
URI
https://pr.ibs.re.kr/handle/8788114/1294
ISSN
2192-6506
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > Journal Papers (저널논문)
Files in This Item:
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