Preparation of Ag/CuO nanobelts/copper foam composite electrode and its application in electrochemical hydrogen peroxide sensors
TIAN Liang-liang1,2
1. School of Architecture and Luqiao, Chongqing Vocational College of Transportation, Chongqing 402260, China; 2. New Materials Research Institute, Chongqing University of Arts and Sciences, Chongqing 402160, China
Abstract: Two-dimensional transition metals have potential applications in electrocatalysis sector due to their special structural and morphologic anisotropies.However,their monotonous surface properties and insufficient electrical conductivity limit the further improvement of their electrocatalytic activity.At first,CuO nanobelts (CuO NBs) are prepared on copper foam (CF) by in-situ chemical oxidation,and then silver nanoparticles (Ag NPs) are decorated on the nanobelts to improve the conductivity and interface properties.As a detection electrode for H2O2,Ag NPs/CuO NBs/CF electrode displays a sensitivity of 181.2 μA·mM-1·cm-2 between 1.5 μM and 2.5 mM,which is higher than those of CuO NBs/CF (126.4 μA·mM-1·cm-2) and CF electrode (98.8 μA·mM-1·cm-2).It demonstrates that the decoration of Ag NPs can effectively improve the electrocatalytic activity of CuO NBs.Moreover,the decoration of precious metals also provides ideas for the improvement of electrocatalytic activity of other two-dimensional transition metal materials.
田亮亮. 银/氧化铜纳米带/泡沫铜复合电极的制备及其在双氧水电化学传感器中的应用[J]. 现代化工, 2020, 40(12): 127-131,136.
TIAN Liang-liang. Preparation of Ag/CuO nanobelts/copper foam composite electrode and its application in electrochemical hydrogen peroxide sensors. Modern Chemical Industry, 2020, 40(12): 127-131,136.
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