Preparation and characterization of Pt-supported porous graphite nanofibers |
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| Authors: | Byoung-Joo Kim Young-Seak Lee Soo-Jin Park |
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| Institution: | aDepartment of Green Chemistry and Environmental Biotechnology, University of Science and Technology, P.O. Box 107, Yuseong, Daejeon 305-600, Republic of Korea;bDepartment of Fine Chemical Engineering and Chemistry, Chungnam National University, 220 Kung-dong, Yuseong, Daejeon 305-764, Republic of Korea;cDepartment of Chemistry, Inha University, 253 Nam-gu, Incheon 402-751, Republic of Korea |
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| Abstract: | In this work, porous graphite nanofibers (PGNFs) were manufactured as promising catalyst supporter by a physical activation method for direct methanol fuel cells, and Pt nanoparticles were loaded on the PGNFs in order to prepare electrode materials by a chemical reduction method. The pore structures of the Pt/PGNFs were analyzed by N2 adsorption isotherms at 77 K. Electrocatalytic activities of final products were investigated by voltammetry and conductivity measurements in a 1.0 M CH3OH/0.5 M H2SO4. As a result, electrocatalytic activities of Pt/PGNFs were increased in the presence of Pt particles on the PGNFs and with increasing the specific surface area of the carbons. |
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| Keywords: | Porous carbons Graphite nanofibers Platinum loading Electrocatalytic activity |
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