阶梯扫描催化伏安法及其卷积和导数的研究

本文系统研究了静态电极下阶梯扫描平行催化伏安法及其各阶导数卷积和导数的理论。推导了这一伏安法的催化电流及其各阶导数卷的导数的理论方程, 在此基础上建立了一组简便测定化学反应速率常数的新方法。并以Ti(IV)-KClO3,Ti(IV)-NH2OH, Yb(III)-KNO3和YB(III)-NaNO2四个平行催化体系从实验上验证了理论的正确性, 同时用本文提出的新方法测定了这四个体系的化学反应速率常数,结果良好.

A study on catalytic voltammetry with staircase potential ramp and its convolution and derivation

The theory was investigated systematically of catalytic voltammetry with staircase potential ramp at a stationary electrode. First, the theor. equations of catalytic current and its all-order derivative convolution and derivation currents were deduced. Second, a series of new methods to measure the rate constant of a chem. reaction, kf, were established basing on these equations. Third, four catalytic systems, Ti(IV)-KClO3, Ti(IV)-NH2OH, Yb(III)-KNO3 and Yb(III)-NaNO2 were used to test the theory, and the results showed the correctness of the theory; and last, the values of kf for these 4 experimental systems were determine and the results showed the advantages of the new methods.