한국분말재료학회지 (Journal of Powder Materials)

  • 제12권2호
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  • Pages.117-121
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  • 2005
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  • 2799-8525(pISSN)
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  • 2799-8681(eISSN)
한국분말재료학회 (*구 분말야금학회) (The Korean Powder Metallurgy & Materials Institute)
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Nano-structured Carbon Support for Pt/C Anode Catalyst in Direct Methanol Fuel Cell

  • Choi Jae-Sik (School of Chemical & Biological Engineering and Research Center for Energy Conversion & Storage, Seoul National University) ;
  • Kwon Heock-Hoi (Department of Chemical and Environmental Engineering, Soongsil University) ;
  • Chung Won Seob (School of Materials Science & Engineering, Pusan National University) ;
  • Lee Ho-In (School of Chemical & Biological Engineering and Research Center for Energy Conversion & Storage, Seoul National University)
  • 발행 : 2005.04.01
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초록

Platinum catalysts for the DMFC (Direct Methanol Fuel Cell) were impregnated on several carbon supports and their catalytic activities were evaluated with cyclic voltammograms of methanol electro-oxidation. To increase the activities of the Pt/C catalyst, carbon supports with high electric conductivity such as mesoporous carbon, carbon nanofiber, and carbon nanotube were employed. The Pt/e-CNF (etched carbon nanofiber) catalyst showed higher maximum current density of $70 mA cm^{-2}$ and lower on-set voltage of 0.54 V vs. NHE than the Pt/Vulcan XC-72 in methanol oxidation. Although the carbon named by CNT (carbon nanotube) series turned out to have larger BET surface area than the carbon named by CNF (carbon nanofiber) series, the Pt catalysts supported on the CNT series were less active than those on the CNF series due to their lower electric conductivity and lower availability of pores for Pt loading. Considering that the BET surface area and electric conductivity of the e-CNF were similar to those of the Vulcan XC-72, smaller Pt particle size of the Pt/e-CNF catalyst and stronger metal-support interaction were believed to be the main reason for its higher catalytic activity.

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참고문헌

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피인용 문헌

  1. Excellent Durability of Substoichiometric Titanium Oxide As a Catalyst Support for Pd in Alkaline Direct Ethanol Fuel Cells vol.51, pp.30, 2012, https://doi.org/10.1021/ie202696z