碳原子线修饰碳糊电极对于对苯二酚的电催化作用  

Electrocatalysis of p-dihydroxy-benzene at Carbon-Atom-Wire-Modified Carbon Paste Electrode

作　　者：徐雯[1] 薛宽宏[2] 

机构地区：[1]南京晓庄学院化学系,江苏南京210017 [2]南京师范大学化学与环境科学学院,江苏南京210097

出　　处：《南京晓庄学院学报》2006年第4期52-55,共4页Journal of Nanjing Xiaozhuang University

摘　　要：用直接混合法制备了碳原子线修饰碳糊电极,并研究了对苯二酚在该电极上的电化学行为.与未加碳原子线的空白碳糊电极相比,碳原子线修饰碳糊电极可使对苯二酚的氧化峰负移0.152V,还原峰正移0.161V,ΔEp减小了0.313V,反应的可逆性明显变好,说明该电极具有具有较高的电催化活性.同时还探讨了电解质溶液、浓度、扫描速率等因素对电催化性能的影响.The CAWs, graphite and mineral oil were directly mixed to make the CAW modified carbon paste electrede and the electrocatalysis of the modified electrode to hydroquinone was studied. Compared with the bare carbon paste electrode, the anodic peak potential shifted negatively by 0. 152 V and the cathodic peak potential shifted positively by 0. 161 V for CVs of hydroquinone on the CAW modified carbon paste electrode. The reversibility of the reaction became obviously better, showing the high electrocatalytic activity of CAWs to electrochemical oxidation of Hydroquinone. Moreover, several effective factors including electrolyte, concentration, scanning velocity were discussed.

关 键 词：碳原子线 碳糊电极 对苯二酚 电催化 

分 类 号：O643[理学—物理化学]