GOD/PPy/GC电极的电化学性能研究  

Electrocatalytic properties of GOD/PPy/GC electrode

作　　者：于志辉[1] 任翠华[1] 李钒[1] 夏定国[2] 程水源[1] 

机构地区：[1]北京工业大学环境与能源工程学院,北京100124 [2]北京大学工学院,北京100871

出　　处：《功能材料》2012年第7期863-867,共5页Journal of Functional Materials

基　　金：国家自然科学基金资助项目(50974006);北京自然科学基金资助项目(2102004);北京市人才强教深化计划--创新团队资助项目(PHR201007105)

摘　　要：采用电沉积法在玻碳(GC)电极表面合成纳米级聚吡咯(PPy),通过扫描电镜得到PPy的形貌。以PPy为载体,通过吸附法固定葡萄糖氧化酶(GOD),得到GOD/PPy/GC电极。利用循环伏安法对GOD/PPy/GC电极的电化学行为进行分析,结果表明,以PPy为载体可以很好地固定GOD并保持其生物活性。在0.1mol/L磷酸盐缓冲溶液中,无任何电子媒介体存在时,GOD/PPy/GC电极显示了很好的电催化性能。Nano-polypyrrole（PPy） were prepared on glassy carbon（GC） electrodes by electrodeposited method.The morphology of the PPy was obtained by scanning electron microscopy（SEM）.The GOD/PPy/GC electrode was prepared by immobilization glucose oxidase（GOD） on the PPy.The electrocatalytic properties of GOD/PPy/GC electrode were characterized by cyclic voltograme method;the results showed that GOD can be immobilized on the nano-PPy and the biological activation of GOD was retained.The GOD/PPy/GC electrode exhibits good eleccatalytic performance without any electron mediator at the medium of phosphate buffer（0.1mol/L）.

关 键 词：聚吡咯 葡萄糖氧化酶 电化学性能 

分 类 号：O646[理学—物理化学]