WEI Songli, WU Dingcai, FU Ruowen. Influence of Preparation Method on the Electrochemical Performance of Pt/Carbon Aerogel Catalyst[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(5):72-76.
WEI Songli, WU Dingcai, FU Ruowen. Influence of Preparation Method on the Electrochemical Performance of Pt/Carbon Aerogel Catalyst[J]. Acta Scientiarum Naturalium Universitatis SunYatseni, 2010,49(5):72-76.DOI:
Platinum catalysts supported on carbon aerogel (Pt/CA) were prepared by different reducing agents
including in HCHO
NaBH
4
and EG (ethylene glycol). The Pt/CA catalysts were characterized by X-ray diffraction and cyclic voltammetry. The results indicated that the Pt/CA catalysts synthesized with ethylene glycol reducing agent achieved an extremely uniform Pt dispersion. The size of the Pt nanoparticles was 2.2 nm. Electrochemical analysis showed that the activity order was Pt/CA-EG
>
Pt/CA-HCHO
>
Pt/CA-NaBH
4
. The electrochemical active area and mass activity of the Pt/CA-EG catalyst reached 74.1 m
2
/g and 248.8 A/g
respectively
which were significantly higher than those of commercial Pt/C catalysts.
关键词
直接甲醇燃料电池炭气凝胶Pt/CA催化剂乙二醇还原法
Keywords
direct methanol fuel cellscarbon aerogelPt/carbon aerogel catalystethylene glycol