PAN,Cu2+-PAN配合物的电化学性质研究  

Study on Electrochemical Properties of PAN and Cu2+-PAN Complex

作　　者：仝慧 Tong Hui(Henan Institute of Chemical Technology,Kaifeng 475000,China)

机构地区：[1]河南化工技师学院,河南开封475000

出　　处：《广东化工》2020年第3期18-19,共2页Guangdong Chemical Industry

摘　　要：采用循环伏安法分别研究了PAN和Cu2+-PAN配合物在玻碳电极上的电化学性质。在pH=6.2的NaOH-KH2PO4介质中,扫速为50m V/s时,PAN有一对氧化还原峰,其Epa=0.011 V,Epc=-0.026 V。Cu2+能和PAN形成配位比为1∶1的配合物,并在-0.328 V处出现一不可逆的特征还原峰,且峰电流由中心离子Cu2+还原产生。同时求算了PAN和Cu2+-PAN配合物在玻碳电极上的电化学参数,并讨论了反应机理。The electrochemical behaviors of 1-(2-pyridylazo)-2-naphtol(PAN)and Cu2+-PAN complex were investigated by cyclic voltammetry(CV)at glassy carbon electrode respectively.In 0.1 mol/L KH2PO4-Na OH buffer solution(p H 6.2),the redox peak potentials of PAN were Epa=0.011 V and Epc=-0.026 V.Cu2+reacted with PAN forming a stable 1:1 complex.One irreversible reduction peak,which was a typical cathodic peak of the complex,at potential of-0.328 V was appeared at the scan rate of 50 m V/s.The dynamics parameters of PAN and Cu2+-PAN on solid electrode were calculated and the electrode reaction mechanisms were also deduced.

关 键 词：1-(2-吡啶偶氮)-2-萘酚 配合物 电化学性质 电化学参数 

分 类 号：O657.1[理学—分析化学] O641.4[理学—化学]