节点文献
钆在DMSO中的电化学研究
ELECTROCHEMICAL STUDY OF GADOLINIUM IN DMSO
【摘要】 研究了二甲基亚砚(DMSO)中,钆在Pt和Cu电极上的电化学行为.结果表明,Gd(Ⅲ)在Pt和Cu电极上一步不可逆还原为Gd(0),在Cu电极上恒电位电解,可获得粘附性好的Gd均匀沉积膜,其中Gd含量(质量分数,%)可达90.3.利用循环伏安法、电流-时间曲线、电位-时间曲线测定了Gd(Ⅲ)离子在301K下,Gd(ClO4)3-LiClO4-DMSO溶液中的扩散系数和传递系数分别为2.01×106cm2·s-1和0.17.
【Abstract】 The cyclic coltammetry, current-time curve at potential step, electrode potential-timecurve at galvanostic method and X-ray diffraction were used to investigate the electrochemical behaviorof Gd(III) in Gd(ClO4)3-LiClO4-DMSO system on Pt cathodes. Experimental results indicate that theelectroreduction of Gd(lll) to Gd(0) is irreversible in one step on Pt electrode. The Gd metal was preparedby potentiostatic electrolysis on Cu electrode surface in Gd(ClO4)3-LiClO4-DMSO system. The depositscontained Gd over 90.3 (mass fraction,%) were obtained. The diffusion coefficient and transfer coefficientof Gd(III) in Gd(ClO4)3-LiClO4-DMSO system at 301 K are 2.01×10-6 cm2.s-1 and 0.17, respectively.
【Key words】 gadolinium; electrodeposition; dimethyl sulfoxide; diffusivity; transfer coefficient;
- 【文献出处】 金属学报 ,ACTA METALLRUGICA SINICA , 编辑部邮箱 ,1999年11期
- 【分类号】O621.259.2
- 【被引频次】1
- 【下载频次】75