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运用电化学电位阶跃技术,在玻碳基底上制得FeCo合金纳米电催化剂.XRD、SEM和TEM表征结果显示,制备的FeCo合金纳米粒子为单晶,呈立方体形貌,分布较均一,平均粒径65 nm,Fe和Co原子百分比约1∶1.电化学测试结果表明,FeCo/GC电极具有比Fe/GC电极更高的电催化活性,对亚硝酸盐还原的活性是Fe/GC电极的4.7倍.FeCo/GC电极对氧还原也表现出优异的催化性能.
The electrocatalytic potential step technique was used to fabricate FeCo nanocomposite catalyst on glassy carbon substrate. The results of XRD, SEM and TEM showed that the prepared FeCo nanoparticles were single crystal with cubic morphology and uniform distribution, The particle size was 65 nm and the atomic percentage of Fe and Co was about 1: 1. The electrochemical tests showed that the FeCo / GC electrode has higher electrocatalytic activity than the Fe / GC electrode and the activity of the nitrite reduction is Fe / GC electrode Of the 4.7 times .FeCo / GC electrode oxygen reduction also showed excellent catalytic properties.