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以活性炭为载体制备了Pd:Fe原子比分别为1∶1、2∶1、1∶2的Pd-Fe/C催化剂。TEM和XRD测试得出,合金粒子在载体上分布均匀,粒径在4nm左右,并重点考察了3种不同比例催化剂对甲酸的电催化氧化性能,结果表明,Pd/Fe原子比为1∶1时,催化性能最好。
Pd-Fe / C catalysts with Pd: Fe atomic ratios of 1: 1, 2: 1 and 1: 2 respectively were prepared with activated carbon as carrier. TEM and XRD results show that the alloy particles are uniformly distributed on the carrier and the particle size is about 4nm. The electrocatalytic oxidation performance of formic acid with three different proportions of catalysts is investigated emphatically. The results show that the Pd / Fe atomic ratio is 1: 1 When the catalytic performance is best.