Journal
ENERGY & FUELS
Volume 23, Issue 1-2, Pages 908-911Publisher
AMER CHEMICAL SOC
DOI: 10.1021/ef8006432
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Funding
- NNSFC [50472029, 50632040]
- Scientific Foundation of Guangzhou [2007Z2-D2041]
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Platinum catalysts supported on carbon aerogel (Pt/CA) with different pore structures were synthesized by an ethylene glycol liquid-phase reduction method. The Pt/CA catalysts were characterized by X-ray diffraction, transmission electron microscopy, and cyclic voltammetry. The effect of the pore structures of CAs on the electrochemical performance of Pt/CA for a direct methanol fuel cell was also analyzed. Experimental results indicate that the Pt/CA catalysts synthesized have achieved an extremely uniform Pt dispersion. The size of the Pt nanoparticles is 2.3 nm. The electrochemical active area and mass activity of the Pt/CA catalyst prepared on a CA with R/C (resorcinol/cetyltrimethylammonium bromide molar ratio) = 125 reach 87.4 m(2) g(-1) and 395.3 A g(-1), respectively, which are significantly higher than those of commercial Pt/C catalysts.
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