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首页> 外文期刊>ChemElectroChem >Facile Deposition of Cu-SnOx Hybrid Nanostructures on Lightly Boron-Doped Diamond Electrodes for CO2 Reduction
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Facile Deposition of Cu-SnOx Hybrid Nanostructures on Lightly Boron-Doped Diamond Electrodes for CO2 Reduction

机译：Cu-Snox杂交纳米结构对轻硼掺杂金刚石电极的Cu-Snox混合纳米结构进行CO2减少

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In this work, we report a facile synthesis of Cu-SnOx hybrid nanostructures on lightly boron-doped diamond (BDDL) electrodes by a potentiodynamic electrodeposition method. The deposition potential for Cu-SnOx hybrid nanostructures was cycled between 0 to -1.0V vs Ag/AgCl for five consecutive runs at a scan rate of 50 mV/sec. The growth of the Cu-SnOx hybrid nanostructures on BDDL was optimized by varying the number of potentiodynamic deposition cycles and precursor concentration. A uniform particle size distribution of Cu-SnOx was obtained on BDDL using 10 mM CuSO4 and 5 mM SnCl2 in 50 mM aqueous NaNO3. Detail of surface morphology and surface elemental composition of the optimized Cu-SnOx hybrid nanostructures modified BDDL electrodes were characterized. The optimized Cu-SnOx hybrid nanostructures on BDDL were found to be in the size range of 50 to 100 nm with a 3 to 10nm SnOx-rich shell. This optimized Cu-SnOx modified BDDL electrode was tested for electrochemical CO2 reduction reaction in aqueous electrolyte and found to produce primarily CO with a Faradaic Efficiency of up to 82.5% at -1.6V vs Ag/AgCl.
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