传感技术学报2008，Vol.21Issue(9)：1487-1492,6.
溅射二氧化钛电极对过氧化氢电化学检测的研究
Electrochemical Detection of Hydrogen Peroxide at the Sputtered Titanium Oxide Electrode
摘要
Abstract
In this paper a planar titanium oxide electrode was fabricated by standard microelectronic technol-ogy and its electrochemical properties in phosphate buffer solution was investigated. According to the cy-clic vohammetric results, both hydrogen peroxide and oxygen can be cathodic reduced at titanium oxide e-lectrode, while the reduction of hydrogen peroxide is preferential. The amperometric measurement of hy-drogen peroxide at the planar titanium oxide electrode in air saturated phosphate buffer solution at -300 mV shows fast responses. The amperometric response to 0.1 mmol/L hydrogen peroxide is 0.4 μA while the residual current due to the reduction of oxygen is only 14 nA. Glucose oxidase has been immobilized on the surface of titanium oxide film to explore the possible applications of this electrode in biosensing. The experimental results show it is difficult to immobilize enzyme on titanium oxide surface.关键词
二氧化钛电极/过氧化氢/溅射/还原Key words
titanium oxide/hydrogen peroxide/sputtering/reduction分类
信息技术与安全科学引用本文复制引用
周庆利,袁青,于晶,吴坚..溅射二氧化钛电极对过氧化氢电化学检测的研究[J].传感技术学报,2008,21(9):1487-1492,6.基金项目
国家自然科学基金项目资助(30670535) （30670535）
教育部"新世纪优秀人才支持计划"基金项目资助(NCET-07-0752)This work was supported by the National Natural Science Foundation of China(projects No.30670535)and by Program for New Century Excellent Talents in University (NCET-07-0752). （NCET-07-0752）
