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Language: korean

Conflict of Interest: In relation to this article, we declare that there is no conflict of interest.

Publication history: Received January 31, 2011
Accepted February 25, 2011

This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

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NaOH 활성화된 탄소나노섬유의 직접 메탄올 연료전지용 연료극 촉매의 담지체로서의 특성 고찰

Characteristics of NaOH-Activated Carbon Nanofiber as a Support of the Anode Catalyst for Direct Methanol Fuel Cell

신정희¹ 임성엽^{1 2†} 김상경¹ 백동현¹ 이병록¹ 정두환^{1 2}

Jung-Hee Shin¹ Seongyop Lim^{1 2†} Sang-Kyung Kim¹ Dong-Hyun Peck¹ Bung-Rok Lee¹ Doo-Hwan Jung^{1 2}

¹한국에너지기술연구원 연료전지연구단, 305-343 대전 유성구 가정로 102 ²과학기술연합대학원대학교 신에너지기술, 305-333 대전광역시 유성구 가정로 217

¹Fuel Cell Research Center, Korea Institute of Energy Research(KIER), 71-2 Jang-dong, Yuseong-gu, Daejeon 305-343, Korea ²Advanced Energy Technology, University of Science and Technology(UST), 113 Gajeongro, Yuseong-gu, Daejeon 305-333, Korea

Korean Chemical Engineering Research, December 2011, 49(6), 769-774(6), NONE Epub 28 November 2011

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Abstract

NaOH 활성화법을 이용하여 다공성 탄소나노섬유(carbon nanofibers; 이하 CNF)를 온도 범위 700~900℃ 에서 합성하였고, 상기 제조된 다공성 CNF를 담지체로 하여 직접메탄올 연료전지의 연료극용 촉매를 제조하고 평가하였다. NaOH 활성화에 의한 CNF 표면 특성의 변화를 비표면적 및 기공 크기 분포 자료를 통하여 조사하였고, 형상 및 구조의 변화를 전자현미경을 통하여 관찰하였다. 활성화 CNF에 담지된 촉매의 활성을 메탄올 산화 특성 및 단위전지를 통하여 평가하였다. 본 활성화 방법에 의한 기공의 형성과 이에 담지된 촉매의 활성과의 관계에 대한 고찰을 하였다.

Porous carbon nanofibers(CNF) were synthesized via NaOH activation at 700~900 ℃, and the porous CNF-supported PtRu catalysts were evaluated for the anode in direct methanol fuel cells. The change of surface characteristics by NaOH activation was examined by analyses of the specific surface area and pore size distribution. The morphological and structural modification was investigated under scanning electron microscopy. The activity of catalysts supported on porous CNFs was examined by cyclic voltammograms and single cell tests. The pore formation on CNF by the NaOH activation was discussed, concerning the catalyst activity, when they were applied as catalyst supports.

Keywords

NaOH Activation Carbon Nanofibers Porous Structure Catalyst Support Direct Methanol Fuel Cell

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