- Nano-structured Carbon Support for Pt/C Anode Catalyst in Direct Methanol Fuel Cell
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Jae-Sik Choi, Heock-Hoi Kwon, Won Chung, Ho-In Lee
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J Korean Powder Metall Inst. 2005;12(2):117-121.
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DOI: https://doi.org/10.4150/KPMI.2005.12.2.117
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- 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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Citations
Citations to this article as recorded by  - Excellent Durability of Substoichiometric Titanium Oxide As a Catalyst Support for Pd in Alkaline Direct Ethanol Fuel Cells
Son Truong Nguyen, Jong-Min Lee, Yanhui Yang, Xin Wang
Industrial & Engineering Chemistry Research.2012; 51(30): 9966. CrossRef - Nano-structured Pt–Cr anode catalyst over carbon support, for direct methanol fuel cell
Jae-Sik Choi, Won Seob Chung, Heung Yong Ha, Tae-Hoon Lim, In-Hwan Oh, Seong-Ahn Hong, Ho-In Lee
Journal of Power Sources.2006; 156(2): 466. CrossRef
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