Electrocatalytic properties of graphite nanofibers-supported platinum catalysts for direct methanol fuel cells.
Graphite nanofibers (GNFs) treated at various temperatures were used as carbon supports to improve the efficiency of PtRu catalysts. The electrochemical properties of the PtRu/GNFs catalysts were then investigated to evaluate their potential for application in DMFCs. The results indicated that the particle size and dispersibility of PtRu in the catalysts were changed by heat treatment, and the electrochemical activity of the catalysts was improved. Consequently, it was found that heat treatments could have an influence on the surface and structural properties of GNFs, resulting in enhancing an electrocatalytic activity of the catalysts for DMFCs.
Park
Soo-Jin
SJ
Department of Chemistry, Inha University, 253 Nam-gu, Incheon 402-751, South Korea. sjpark@inha.ac.kr
Park
Jeong-Min
JM
Seo
Min-Kang
MK