Fe含量对Pd/C催化剂性能的影响  

Effect of Fe content on the performance of Pd/C catalyst

作　　者：冯兰英[1] 江红[1] 朱红[1] 郭志军 张新卫[1] 

机构地区：[1]北京交通大学理学院,北京100044

出　　处：《化工新型材料》2008年第1期45-47,共3页New Chemical Materials

基　　金：国家自然科学基金重点项目(20636060);国家自然科学基金面上项目(50674006);北京市自然科学基金重点项目(2051001)

摘　　要：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 different ratios of Pd to Fe were prepared. The ratios of Pd to Fe were 1 ： 1, 2 ： 1, 1 ： 2, respectively. The catalysts were characterized by transmission electron microscopy （TEM） and power X-ray dif- fraction （XRD）. The distribution of the catalyst was narrow. The average particle sizes were about 4nm. The electrocatalytic activity of Pd-Fe alloy catalysts was studied. The results indicated that Pd-Fe/C catalysts that the ratio of Pd to Fe was 1 ： 1 presented a higher electrocatalytic activity.

关 键 词：直接甲酸燃料电池 Pd-Fe/C催化剂 电化学催化 

分 类 号：O643.36[理学—物理化学]