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铁氰化镧修饰电极的制备及表征
引用本文:吴萍,蔡称心.铁氰化镧修饰电极的制备及表征[J].中国化学,2005,23(2):127-131.
作者姓名:吴萍  蔡称心
作者单位:DepartmentofChemistry,NanjingNormalUniversity,Nanjing,Jiangsu210097,China
摘    要:An electroactive polynuclear inorganic compound of rare earth metal hexacyanoferrate, lanthanum hexacyanoferrate (LaHCF), was prepared by electrochemical deposition on the surface of a glassy carbon electrode with a potential cycling procedure. The cyclic voltammogram of LaHCF exhibits a pair of well-defined redox peaks with the formal potential of 208 mV (vs. SCE) at a scan rate of 100 mV/s in 0.2 mol/L NaCl solution and the redox peak currents increase linearly with the square root of the scan rate up to 1000 mV/s. The effects of the concentration of supporting electrolyte on the electrochemical characteristics of LaHCF were studied by voltammetry. LaHCF was also characterizated by scanning electron microscope (SEM), FTIR and XPS techniques.

关 键 词:电化学制备  表征    铁氰化物  化学改性电极  循环伏安法  电分解
收稿时间:2003-12-23
修稿时间:2004-9-27

Electrochemical Preparation and Characterization of Lanthanum Hexacyanoferrate Modified Electrode
Wu Ping,Cai Chen‐Xin.Electrochemical Preparation and Characterization of Lanthanum Hexacyanoferrate Modified Electrode[J].Chinese Journal of Chemistry,2005,23(2):127-131.
Authors:Wu Ping  Cai Chen‐Xin
Abstract:An electroactive polynuclear inorganic compound of rare earth metal hexacyanoferrate, lanthanum hexacyanoferrate (LaHCF), was prepared by electrochemical deposition on the surface of a glassy carbon electrode with a potential cycling procedure. The cyclic voltammogram of LaHCF exhibits a pair of well‐defined redox peaks with the formal potential of 208 mV (vs. SCE) at a scan rate of 100 mV/s in 0.2 mol/L NaCl solution and the redox peak currents increase linearly with the square root of the scan rate up to 1000 mV/s. The effects of the concentration of supporting electrolyte on the electrochemical characteristics of LaHCF were studied by voltammetry. LaHCF was also characterizated by scanning electron microscope (SEM), FTIR and XPS techniques.
Keywords:cyclic voltammetry  chemically modified electrode  electrodeposition  lanthanum hexacyanoferrate
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