화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2015년 봄 (04/22 ~ 04/24, 제주 ICC)
권호 21권 1호, p.547
발표분야 에너지
제목 Tungsten carbides and CNT-graphene supported Pd electrocatalysts toward electrooxidation of hydrogen
초록 Tungsten carbides and CNT-GR composite-supported Pd electrocatalysts are synthesized by pH-adjusted polyol method. Their electrochemical properties are investigated by cyclic voltammetry and single cell test and compared with commercial Pt/C (BASF, 20 wt. % Pt) catalyst. In the cyclic voltammetry, the electrochemical active surface area of Pd/WC/CNT-GR is much larger than that of other synthesized catalysts and commercial Pt/C catalyst. The introduction of CNT-GR into Pd/WC also improves performance of single cell and stability during 50 hours continuous operation. Pd/WC/CNT-GR shows 65% maximum power density of Pt/C and lose only 5% of maximum power density after 50 hours.
저자 한승훈1, 이민희2, 이재성2
소속 1POSTECH, 2UNIST
키워드 Tungsten Carbides; hydrogen oxidation reaction; CNT-graphene composite
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