摘要
用线性电流扫描极谱、恒电流单阶跃计时电位法及等电流双阶跃计时电位法,研究了Ni(II)、Co(II)-邻菲咯啉(Phen)体系在1,2-二氯乙烷(DCE)/水界面相转移的电化学行为.同时,研究了相转移过程的机理.结果表明,电解前,Phem与Ni(II)或Co(II)同时在水相时,Ni(II)、Co(II)行为类同;若电解前Phen在有机相时,Ni(II)、Co(II)的行为截然不同,原因在于两者与Phen配位反应的动力学的差异.
The electrochemical behavior of nickel (II) and cobalt (II)-1, 10-phenanthroline (Phen) in the 1, 2-dichloroethane (DCE)/aqueous systems has been studied at the ascending water electrode (AWE) and the stationary water electrode (SWE) by current scan polarography and chronopotentiometry. Similar electrochemical behavior was observed when nickel (II) a nd Phen or cobalt (II) and Phen existed in the aqueous phase before electrolysis. There are obvious differences between nickel (II) and cobalt (II) when Phen was in the DCE phase. The differences can be explained by the kinetic-effect between nickel (II) and cobalt (II) in complexing with Phen (from the DCE phase). The mechanism of the phase-transfer processes has also been elucidated.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
1991年第5期468-472,共5页
Acta Chimica Sinica
基金
国家自然科学基金资助的课题
