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报道了通过化学还原和溶胶 -凝胶法制备不同组成的 Pt-Ti O2 /C催化剂及其对甲醇的氧化反应 .结果表明 ,该催化剂具有很好的电催化活性和稳定性 .催化剂中的 Ti和 Pt的原子比为 1 /2时 ,催化剂的性能最好 .在 5 0 0℃下热处理后 ,催化剂的性能得到进一步的改善 .这种催化剂有望能在 DMFC中获得实际使用 .
The Pt-Ti O2 / C catalysts with different compositions prepared by chemical reduction and sol-gel method and their oxidation to methanol were reported. The results showed that the catalyst has good electrocatalytic activity and stability. The Ti And Pt atomic ratio of 1/2, the best performance of the catalyst.After heat treatment at 500 ℃, the performance of the catalyst has been further improved.This catalyst is expected to be in the DMFC practical use.