光谱电化学法测定偶联催化反应速率常数  

DETERMINATION OF THE RATE CONSTANT OF COUPLED CATALYTIC REACTION BY SPECTROELECTROCHEMISTRY TECHNIQUES

作　　者：董静[1] 王雪琳[1] 宋桂兰[1] 奚正楷[1] 

机构地区：[1]山东建材学院应用化学系

出　　处：《山东建材学院学报》1997年第4期319-325,共7页Journal of Shandong Institute of Building Materials

基　　金：山东省自然科学基金

摘　　要：推导了用自制比色皿型长光程薄层光谱电化学池测定偶联催化反应速率常数的理论公式，分别采用单电势跃—计时吸收光谱法（ＳＰＳ—ＣＡ）、双电势跃—计时吸收光谱法（ＤＰＳ—ＣＡ）和单电势跃—开路弛豫法（ＳＰＳ—ＯＣＲ—ＣＡ）测量了Ｋ４Ｆｅ（ＣＮ）６—抗坏血酸（Ｖｃ）体系的催化反应速率常数，实验结果证实了理论公式及实验方法的合理性。Various spectroelectrochemical techniques were used to determine the rate constant of the coupled catalytic reaction,including SinglePotentialStep Chronoabsorptometry(SPSCA),DoublePotentialStep Chronoabsorptometry(DPSCA),SinglePotentialStep OpenCircuit Relaxation Chronoabsorptometry(SPSOCRCA).At first the kinetic equations were derived using the colorimetric cell type longpathlength thin layer spectroelectrochemical cell.Then the constant of ferrocyanideascorbic acid system were determined.The results were satisfactry.

关 键 词：光谱电化学 速率常数 偶联催化反应 

分 类 号：O646.54[理学—物理化学] O643.32[理学—化学]