深共融溶剂中电沉积Ni-Mo 合金及其催化析氢性能 - 化工学报.PDFVIP

第 65 卷 第 11 期 化 工 学 报 Vol.65 No.11 November 2014 2014 年 11 月 CIESC Journal ·4524 · 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 (天津大学化工学院杉山表面技术研究室，天津 300072) 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 DOI ：10.3969/j.issn.0438-1157.2014.11.044 中图分类号：TQ 153.2 ；O 646 文献标志码：A 文章编号：0438—1157 （2014 ）11—4524—06 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 (Shanshan Research Office of Surface Technology, School of Chemical Engineering, Tianjin University, Tianjin 300072, China) 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