摘要
通过电沉积制备了非晶态Ni-Co-P膜层,用电子扫描显微镜(SEM)及X射线衍射(XRD)观察其表面形貌和微观结构;发现氢氟酸的活化处理对电极的析氢反应的电催化性能有很大的增强作用,并比较了处理前后的表面形貌.通过在1 mol/L NaOH溶液中的恒电位和Tafel测试与Ni-Co、Ni电极比较了电催化效率,求出的析氢反应表观活化能分别为19.56、46.29和57.03 kJ·mol-1.结果表明:Ni-Co-P电极对氢气析出反应具有较好的电催化性能.
Composite coatings of Ni - Co - P were prepared by electrodepositon. The Surface morphology and microstructure of Ni - Co - P coatings were observed by means of SEM and XRD. It was found that the hydrogen evolution reaction （HER） of amorphous Ni - Co - P electrode was enhanced after the HF acid treatment procedure. The apparent morphology before and after treatment was contrasted. Compared with Ni - Co and Ni electrodes, Electrocatalytic efficiency was evaluated on the basis of electrochemical steady-state Tafel polarization and Potentiostatic in 1 mol/L NaOH solution. The apparent energy of activation were 19. 56, 46.29 and 57.03 kJ · mol^ - 1 for the HER, respectively. The amorphous coatings Ni - Co - P is catalytically more active
出处
《哈尔滨工业大学学报》
EI
CAS
CSCD
北大核心
2005年第9期1185-1188,共4页
Journal of Harbin Institute of Technology
基金
山东省科技发展计划基金资助项目(2002014).
关键词
非晶态合金
电催化
析氢反应
Ni—Co—P
amorphous alloy
Electrocatalysis
hydrogen evolution reaction
Ni - Co - P
