Cu2O nano-flowers/graphene enabled scaffolding structure catalyst layer for enhanced CO2 electrochemical reduction
نویسندگان
چکیده
Nanosized Cu2O catalysts with precisely controlled bud-to-blooming flower shapes are synthesised using modified polyol method. The evolution of the shape when applied to gas diffusion electrodes improves key factors influencing catalyst layer, e.g. volume porosity and triple-phase boundary contact areas. Numerical experimental studies revealed increased reactant molar concentration improved CO2 mass transfer due structural changes, which influenced electrochemical reduction reaction (eCO2RR). fully bloomed nanoflower catalyst, combined two-dimensional (2D) structured graphene sheet, formed a layer scaffolding structure that exhibited highest Faradaic efficiency (FE) 93.20% towards CO at an potential ?1.0 V vs. RHE in 1 M KOH. These findings established relationship between properties transfer, based on we could describe effect design eCO2RR performance.
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ژورنال
عنوان ژورنال: Applied Catalysis B-environmental
سال: 2022
ISSN: ['1873-3883', '0926-3373']
DOI: https://doi.org/10.1016/j.apcatb.2021.121022