Current Applied Physics

Korean Physical Society (한국물리학회)
권호 표지

Preparation and characterization of Pt-supported porous graphite nanofibers

Kim, Byoung-Joo;Lee, Young-Seak;Park, Soo-Jin

  • Published : 20081100
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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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