燃料电池中氢电极催化剂的研究

燃料电池是借助于电池内的燃烧反应，将化学能直接转为电能的装置，是一种新型的高效化学电源，是除火力、水力、核能之外的第四种发电方式。对燃料电池，性能良好的催化剂至关重要，它决定着大电流密度放电时的电池性能、运行寿命和成本。燃料电池的催化剂应该满足以下条...

CATALYSTS FOR HYDROGEN ELECTRODE IN FUEL CELLS

Platinum is a kind of catalyst used for hydrogen electrode in fuel cells To increase its catalytic activities, Pt/C catalyst has been produced, in which platinum is highly dispersed and low-loaded The effect of doping Pd, Ni, Bi, La on Pt/C catalyst was investigated, and the polarization property was measured It is found that for hydrogen electrode in fuel cells, Pt-Pd-Ni/C is a good catalyst in which the content of platinum is 03mg/cm2 and the ratio of platinum to palladium and nickel is 126 The overpotential of the hydrogen electrode with this catalyst is very low, about 02 v at the current 100 mA/cm2, and the specific surface area of this catalyst is about 91 m2/g