摘要
采用电化学方法在玻碳电极上修饰石墨烯及纳米氧化铜,制备了纳米氧化铜/石墨烯修饰电极（nanoCuO/ERGO/GCE）。研究了纳米氧化铜/石墨烯修饰电极的电化学性质。该修饰电极在氢氧化钠溶液中,低电位下（0.08V）可催化氧化过氧化氢。在2.3×10^-5~3.0×10^-3mol/L和3.0×10^-3~8.3×10^-3mol/L浓度范围内,过氧化氢的响应电流与浓度呈良好的线性关系,线性相关系数分别为0.9943和0.9972,检测限为6.96×10^-6mol/L（三倍噪音法）。
Graphene and nano- copper oxide was modified on the surface of a glassy carbon electrode by electrochemical method. The electrochemical properties of nanoCuO/ERGO/GCE modified electrode were investigated. The modified electrode could catalytic oxidation hydrogen peroxide at low potential, 0. 08 V （vs. SCE ） in NaOH solutions. The concentration of H2 O2 showed good linear relationships with the oxidation peak current of H2 02 in the range of 2. 3×10^-5 - 3.0×10^-3 mol/L and 3.0×10^-3 - 8.3×10^-3 mol/L, with the limit of detection of 6.96×10^-6 mol/L（S/N = 3 ）, and the correlation coefficents were 0. 9943 and 0. 9972, respectively.
出处
《广州化工》
CAS
2015年第10期98-100,150,共4页
GuangZhou Chemical Industry
关键词
纳米氧化铜
石墨烯
电化学性质
电催化氧化
过氧化氢
nano-eopper oxide
graphene
electrochemical properties
eleetrocatalytic oxidation
hydrogen peroxide
