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직접메탄을 연료전지용 귀금속 산화극 대체촉매의 개발
Development of Alternative Noble Metal Anode Catalyst for Direct Methanol Fuel Cell
최재식 ( Choe Jae Sig ) , 윤봉국 ( Yun Bong Gug ) , 하승백 ( Ha Seung Baeg ) , 정원섭 ( Jeong Won Seob ) , 이호인 ( Lee Ho In )
응용화학 vol. 7 iss. 2 735-738(4pages)
UCI I410-ECN-0102-2009-570-003220509
This article is 4 pages or less.

For the direct methanol fuel cell, the expensive cost of Pt is one of the most important factors. In this study, various kinds of support were synthesized and chosen for highly dispersed catalysts which need less amount of Pt and show higher activity. A mesoporous carbon was selected as a support which has 5 times larger specific surface area than Vulcan XC-72, a commercial support. Such a large surface area gave an advantage in the dispersion of Pt, but a disadvantage in electric conductivity which could be solved by increasing the carbonizaton temperature in the preparation of mesoporous carbon. These prepared mesoporous carbons were used as supports of Pt. Among the catalysts, the catalyst using mesoporous carbon carbonized at 1000 ℃ showed better activity than the catalyst using Vulcan XC-72 as a support showing the best activity. From the XRD analysis, the activity was proportional to the dispersion of Pt.

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