Preparation of copper oxide modified boron-doped diamond electrodes and its preliminary study for CO2 reduction

International Symposium on Current Progress in Functional Materials

Yetri, N.Y.^1 ; Ivandini, T.A.^1 ; Gunlazuardi, J.^1

Department of Chemistry, Faculty of Mathematics, Natural Sciences Universitas Indonesia, Kampus UI Depok, Depok

16424, Indonesia^1

关键词: BDD electrodes;    Boron doped diamond;    Boron doped diamond electrodes;    Chronoamperometry techniques;    CO2 reduction;    Electrochemical reductions;    NaCl solution;    Reduction peak;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/188/1/012011/pdf
DOI  :  10.1088/1757-899X/188/1/012011

来源: IOP

【 摘 要 】

Preparation of boron-doped diamond (BDD) modified with Cu2O (Cu2O-BDD) electrodes was conducted to study the electrochemical reduction of CO2. The electrodes were prepared by electrochemical reduction using a solution containing 1mM Cu(CH3COO)2and 0.1 M CH3COONa (1:1) at pH 5.7 for 60 s. The electrodeposition of Cu2O at BDD surface was performed by chronoamperometry technique at -0.4 V (vs Ag/AgCl). SEM-EDS and XPS were utilized to characterize the electrodes. At Cu2O-BDD electrodes, cyclic voltammetry of dissolved CO2in 0.1 M NaCl solution exhibited a reduction peak at around -1.3 V (vs Ag/AgCl), indicated the possibility for application in electrochemical reduction of CO2.