摘要
本文报道了用电化学聚合方法制备聚四氨基铜酞菁Pt/PolyCuTAPc/Nafion修饰铂微电极 ,并用该修饰电极制得了气氧传感器 ,研究了传感器的电化学行为并应用于气氧的测定。实验发现 ,该传感器对氧有很好的催化还原作用 ,对气体氧测定具有很高的灵敏度、选择性及较好的抗污染能力 ,响应时间小于 5s ,平行测定 7次气氧浓度 ,相对标准偏差为 0 .36 %。
PolyCuTAPc/Nafion have been chemically modified on a platinum microelectrode. The electrochemistry of the PolyCuTAPc/Nafion modified microelectrode is investigated by cyclic voltammetry (CV). Linear sweep voltammetry (LSV) show that the PolyCuTAPc/Nafion modified microelectrode exhibits very high electrocatalytic activity toward dioxygen reduction with good reproducibility and high sensitivity. The response time of the microsensor for dioxygen measurement is less than 5s. For 7 parallel measurement of dioxygen, the relative standard deviation (RSD) is found to be 0.36%.
出处
《华东师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2000年第3期74-78,共5页
Journal of East China Normal University(Natural Science)
基金
九五科技攻关项目!( 96-A2 3- 0 3- 0 7)
关键词
大气
四氨基铜酞菁
修饰电极
气氧测定
氧浓度
PolyCuTAPc/Nafion
modified microelectrode
dioxygen measurement
microsensor
