十二烷基苯磺酸钠扩散系数的电化学测定  

Electrochemical determination of the diffusion coefficients of sodium dodecyl benzene sulfonate

作　　者：彭娟[1] 韩晓霞[1] 高作宁[1] 

机构地区：[1]宁夏大学能源化工重点实验室化学化工学院,宁夏银川750021

出　　处：《化学研究与应用》2006年第3期305-308,共4页Chemical Research and Application

基　　金：宁夏自然科学基金(E1001);宁夏高等学校科学研究基金(210)资助项目

摘　　要：The electrochem ical behaviors of sod ium dodecyl benzene su lfonate(SDBS)were investigated by cyc lic voltamm etry(CV) at glassy carbon electrode(GCE) using K4Fe(CN)6as a electroactive probe in 0.05 mol.L-1H2SO4aqueous solution.The d iffusion coeffic ients Dm,the hydrodynam ic rad ius Rm,aggregation number n,the average m icelle we ightMmand the self-d iffusion coeffi-c ient Dm0of SDBS m icelle in the vic in ity of the criticalm icelle concentration(CMC) in aqueous solutions were also determ ined by chronou lom try(CC).The electrochemical behaviors of sodium dodecyl benzene sulfonate （SDBS）were investigated by cyclic voltammetry （CV） at glassy carbon electrode（GCE） using K4 Fe（CN） 6 as a electroactive probe in O. 05 tool. L^-4 H2SO4 aqueous solution. The diffusion coefficients Dm ,the hydrodynamic radius R,~, aggregation number n, the average micelle weight Mm and the self-diffusion coefficient Dm^0 of SDBS micelle in the vicinity of the critical micelle concentration （CMC） in aqueous solutions were also determined by ehronoulomtry （CC）.

关 键 词：十二烷基苯磺酸钠 循环伏安法 计时电量法 扩散系数 

分 类 号：O647.2[理学—物理化学]