摘要
采用循环伏安法研究了铝在融熔氯化钠—氯化铝体系中的阴极电化学沉积过程。在碱性熔体中阴极还原质点为ＡｌＣｌ４在酸性熔体中还原质点为Ａｌ２Ｃｌ７，而ＡｌＣｌ４通过溶剂平衡反应来影响铝的沉积过程。Ａｌ２Ｃｌ７的还原反应是准可逆的，反应机理复杂，可能是前置化学步骤或自催化反应。
he electrochemical deposition of aluminium from NaCl-AlCl3 molten salt system has been studied by using cyclic voltammogram.In the basic salts the species reduced at the cathode are AlCl4 ions,while in the acidic salts the species reduced are Al2Cl7 ions.There are equilibrium reactions between the ionic species,which influence the reduction of aluminium at the cathode.The reduction reaction of Al2Cl7 is quasireversible,and the reduction mechanism is very complicated.There may be some pre-chemical step or camo-catalytic reaction mechanism.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
1995年第3期59-63,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金
关键词
铝
电化学沉积
熔盐
氯化钠
氯化铝
电解
electrochemical deposition cyclic voltammogram NaCl-AlCl_3 molten salt system
