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탄소계 복합담지체에 담지된 고내구성 고분자전해질연료전지용 백금촉매

Highly Durable Pt catalyst Supported on the Hybrid Carbon Materials for Polymer Electrolyte Membrane Fuel Cell

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참고문헌

키워드

주제분류화학

초록

본 연구에서는 산화그래핀과 카본블랙의 혼합담체를 이용하여 내구성이 향상된 백금촉매를 폴리올법으로 제조하였다. 삼전극 순환전압전류법을 이용한 전기화학성능 측정결과 적절한 비율로 조절된 혼합담지체에 백금을 담지시켰을 경우 초기 성능 감소없이 장기내구성이 향상되는 것으로나타났다. 또한 회전원판전극을 이용하여 산소환원반응을 수행한 결과 혼합담체에 담지된 백금촉매가 카본블랙 단일담체에 담지된 백금촉매보다 우수한 고유활성값을 나타내었다.

Abstract

A Pt catalyst (Pt/GxCy) supported on the hybrid supporting materials composed ofgraphene oxide (GO) and carbon black (C) was fabricated using polyol method to improvethe durability of electrocatalysts. The electrochemical performances measured by cyclic voltammogramsusing three-electrode system revealed that the properly designed Pt/GxCy catalystexhibited higher durability than that of Pt/C catalyst without sacrificing an electrocatalytic acivity. In the oxygen reduction reaction (ORR) performed in acid solution with the rotating diskelectrode, the Pt/GxCy catalyst showed greater mass and area-specific activity than those of Pt/C catalyst.

참고문헌 (32)

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