摘要
In this paper, MPt/C (M= La, Nd) catalysts of PEMFC were synthesized by microwave radiation process. The crystallinity and structure of catalysts were respectively analyzed by XRD and nitrogen adsorption tests. The activity of catalysts was investigated by electrochemistry experiment. The results showed that: 1) compared with Pt/C catalyst prepared by typical impregnation-reduction process, the size of MPt/C catalyst particle decreased and the available crystal for O2 reduction increased; 2) the MPt/C catalysts had relatively high BET surface areas; and 3)these crystal transformations of the MPt/C catalyst brought high the electrocatalytic activity, and as a result, improved the power of PEMFC.
In this paper, MPt/C (M= La, Nd) catalysts of PEMFC were synthesized by microwave radiation process. The crystallinity and structure of catalysts were respectively analyzed by XRD and nitrogen adsorption tests. The activity of catalysts was investigated by electrochemistry experiment. The results showed that: 1) compared with Pt/C catalyst prepared by typical impregnation-reduction process, the size of MPt/C catalyst particle decreased and the available crystal for O2 reduction increased; 2) the MPt/C catalysts had relatively high BET surface areas; and 3)these crystal transformations of the MPt/C catalyst brought high the electrocatalytic activity, and as a result, improved the power of PEMFC.
基金
The Department of Science and Technology of Henan Province (No. 0324210007)
