线性扫描伏安法研究(Ⅰ)——微盘电极上准稳态可逆波方程式及其验证  

Investigation of Linear Sweep Voltammetry(Ⅰ)--The Equation of Quasi-Steady-State Reversible Wave at the Microdisk Electrode and Its Experimental Verification

作　　者：张祖训[1] 王晓平[1] 吴志斌[1] 

机构地区：[1]南京大学化学系,南京210008

出　　处：《高等学校化学学报》1991年第10期1312-1315,共4页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金

摘　　要：本文报道微盘电极上线性扫描伏安法准稳态可逆波方程式,并成功地进行了验证,理论和实验结果十分符合。An approximate expression for guasi-steady-state reversible wave at the microdisk electrode is derived in the following form. i = 4nFDRT0CR∫(P)θ/(1+θ), where i is the current, DR the diffusion coefficient, T0 the radius of the electrode, CR the bulk concentration, P=(nFr02v/PTDR)1/2 and θ=exp[nF(E-E0)/RT], the equation holds for P<1. In order to examine the validity of the equation, experimental studies with Fe(CN)64- ions in 0. 5 mol/L KCl solution were carried out at the platinum disk (r0=29. 9 μm) electrode. The experimental voltammograms are in good agreement with the theoretical ones.

关 键 词：伏安法 微盘电极 准稳态可逆波 

分 类 号：O657.14[理学—分析化学]