化工学报 ›› 2014, Vol. 65 ›› Issue (11): 4524-4529.DOI: 10.3969/j.issn.0438-1157.2014.11.044

• 表面与界面工程 • 上一篇    下一篇

深共融溶剂中电沉积Ni-Mo合金及其催化析氢性能

王宏智, 黄波, 张卫国, 刘祥亭, 姚素薇   

  1. 天津大学化工学院杉山表面技术研究室, 天津 300072
  • 收稿日期:2014-04-16 修回日期:2014-06-03 出版日期:2014-11-05 发布日期:2014-11-05
  • 通讯作者: 张卫国

Electrodeposition of Ni-Mo alloy from deep eutectic solvents and its catalytic properties for hydrogen generation

WANG Hongzhi, HUANG Bo, ZHANG Weiguo, LIU Xiangting, YAO Suwei   

  1. Shanshan Research Office of Surface Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China
  • Received:2014-04-16 Revised:2014-06-03 Online:2014-11-05 Published:2014-11-05

摘要: 在深共融溶剂体系中电沉积制备了Ni-Mo合金.利用扫描电镜(SEM)、X射线衍射仪(XRD)及电化学测试对Ni-Mo合金形貌、结构及性能进行了表征.SEM、XRD测试结果表明,Ni-Mo合金为纳米晶结构,平均晶粒尺寸约为2.2 nm;镀层表面微观粗糙度较大,Mo的质量分数约为5%.阴极极化曲线测试结果表明,当电流密度为0.1 A·cm-2时,深共融溶剂中制备的Ni-Mo合金电极析氢电位比水溶液中制备的Ni-Mo合金电极正移约100 mV,相比纯Ni电极正移近250 mV.

关键词: 深共融溶剂, 电化学, Ni-Mo合金, 催化, 析氢反应

Abstract: Ni-Mo alloys were electrodeposited in the deep eutectic solvent system. To obtain the information on deposit's morphology, structure and hydrogen evolution activity, scanning electron microscopy (SEM), X-ray diffraction (XRD) and polarization curve test were used respectively. SEM images and XRD pattern showed that the prepared alloy had a nanocrystalline structure with average crystallites size of 2.2 nm. The deposit contained about 5% (mass) Mo and had a large roughness factor. Polarization curves indicated that hydrogen generation potential of Ni-Mo alloy deposited in ionic liquid had a positively shift of about 100 mV compared to Ni-Mo alloy deposited in aqueous solution and had a positive shift of about 250 mV compared to pure Ni electrode at current density of 0.1 A·cm2.

Key words: deep eutectic solvents, electrochemistry, Ni-Mo alloy, catalysis, hydrogen generation reaction

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