MoCl5在150 ℃室温离子液体中的电化学还原

Electroreduction of MoCl5 in Room Temperature Ionic Liquid at 150 oC

摘要:

研究150 ℃下采用二元室温离子液体中电化学还原五氯化钼制备金属钼。该室温离子液体是二(三氟甲基磺酸酰)亚胺锂(LiTFSI)和二(三氟甲基磺酸酰)亚胺铯(CsTFSI)的共晶熔体(共晶点组成：摩尔比为0.07:0.93; 共晶点温度为112 ℃)。循环伏安法结合SEM-EDAX和XPS 分析表明，在150 ℃可以在镍基板上电沉积得到金属钼。采用恒电流电解和脉冲电流电解的条件下，镀层的质量得到改善

Abstract:

The electroreduction of MoCl5 was performed in the binary room temperature ionic liquid, lithium bis[(tri-fluoromethyl) sulfony]amide (LiTFSI) and cesium bis[(tri-fluoromethyl)sulfony]amide (CsTFSI) (eutectic point, 0.07: 0.93 in mole fraction; m.p., 112 oC) at 150 oC for the sake of electrodeposition of molybdenum. Analyses from cyclic voltammetry complemented by SEM-EDAX and XPS show that metallic molybdenum is electrodeposited on nickel substrate in the ionic liquid LiTFSI-CsTFSI containing MoCl5 at 150 oC. Quality of the deposits is improved by using galvanostatic electrolysis and pulsed current electrolysis