Electrochemically switched ion exchange performances of capillary deposited nickel hexacyanoferrate thin films

被引：20

作者：

Hao Xiao-gang ^{[1
]}

Guo Jin-xia ^{[1
]}

Liu Shi-bin ^{[1
]}

Sun Yan-ping ^{[1
]}

机构：

[1] Taiyuan Univ Technol, Dept Chem Engn, Taiyuan 030024, Peoples R China

来源：

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2006年 / 16卷 / 03期

基金：

中国国家自然科学基金;

关键词：

electrochemically switched ion exchange; nickel hexacyanoferrate; thin film; capillary chemical deposition;

D O I：

10.1016/S1003-6326(06)60097-6

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

Thin films of capillary deposited nickel hexacyanoferrate(NiHCF) were investigated as electrochemically switched ion exchange(ESIX) materials. The films were generated on platinum and graphite substrates based on the ternary reagent diagram. In I mol/L KNO3 solution, cyclic voltammetry(CV) combined with energy-dispersive X-ray spectroscopy(EDS) was used to determine the influence of experimental conditions on the electroactivity of the NiHCF thin film on Pt substrates. The ion selectivity, ion-exchange capacity and the regenerability of NiHCF films on Pt and graphite substrates were investigated. The experiment results show that the NiHCF thin films from Ni2+-poor growth conditions have double peaks CV curves and contain relatively larger amount of potassium; while those from Ni2+-rich growth conditions are single peak CV curves and contain relatively smaller amount of potassium. It is demonstrated that the NiHCF thin films of capillary chemical deposition have good ESIX performances.

引用

页码：556 / 561

页数：6

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