广州化工
廣州化工
엄주화공
GUANGZHOU CHEMICAL INDUSTRY AND TECHNOLOGY
2015年
10期
98-100,150
,共4页
纳米氧化铜%石墨烯%电化学性质%电催化氧化%过氧化氢
納米氧化銅%石墨烯%電化學性質%電催化氧化%過氧化氫
납미양화동%석묵희%전화학성질%전최화양화%과양화경
nano-copper oxide%graphene%electrochemical properties%electrocatalytic oxidation%hydrogen peroxide
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(0.08 V)可催化氧化过氧化氢。在2.3×10-5~3.0×10-3 mol/L和3.0×10-3~8.3×10-3 mol/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6.96×10-6 mol/L(三倍噪音法)。
採用電化學方法在玻碳電極上脩飾石墨烯及納米氧化銅,製備瞭納米氧化銅/石墨烯脩飾電極( nanoCuO/ERGO/GCE)。研究瞭納米氧化銅/石墨烯脩飾電極的電化學性質。該脩飾電極在氫氧化鈉溶液中,低電位下(0.08 V)可催化氧化過氧化氫。在2.3×10-5~3.0×10-3 mol/L和3.0×10-3~8.3×10-3 mol/L濃度範圍內,過氧化氫的響應電流與濃度呈良好的線性關繫,線性相關繫數分彆為0.9943和0.9972,檢測限為6.96×10-6 mol/L(三倍譟音法)。
채용전화학방법재파탄전겁상수식석묵희급납미양화동,제비료납미양화동/석묵희수식전겁( nanoCuO/ERGO/GCE)。연구료납미양화동/석묵희수식전겁적전화학성질。해수식전겁재경양화납용액중,저전위하(0.08 V)가최화양화과양화경。재2.3×10-5~3.0×10-3 mol/L화3.0×10-3~8.3×10-3 mol/L농도범위내,과양화경적향응전류여농도정량호적선성관계,선성상관계수분별위0.9943화0.9972,검측한위6.96×10-6 mol/L(삼배조음법)。
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 O2 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.
