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- W4200383003 abstract "The electrochemical CO2 reduction reaction (CO2 RR) has great potential in realizing carbon recycling while storing sustainable electricity as hydrocarbon fuels. However, it is still a challenge to enhance the selectivity of the CO2 RR to single multi-carbon (C2+ ) product, such as C2 H4 . Here, an effective method is proposed to improve C2 H4 selectivity by inhibiting the production of the other competitive C2 products, namely C2 H5 OH, from Cu2 O/C composite. Density functional theory indicates that the heterogeneous structure between Cu2 O and carbon is expected to inhibit C2 H5 OH production and promote CC coupling, which facilitates C2 H4 production. To prove this, a composite electrode containing octahedral Cu2 O nanoparticles (NPs) (o-Cu2 O) with {111} facets and carbon NPs is constructed, which experimentally inhibits C2 H5 OH production while strongly enhancing C2 H4 selectivity compared with o-Cu2 O electrode. Furthermore, the surface hydroxylation of carbon can further improve the C2 H4 production of o-Cu2 O/C electrode, exhibiting a high C2 H4 Faradaic efficiency of 67% and a high C2 H4 current density of 45 mA cm-2 at -1.1 V in a near-neutral electrolyte. This work provides a new idea to improve C2+ selectivity by controlling products desorption." @default.
- W4200383003 created "2021-12-31" @default.
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- W4200383003 date "2021-12-16" @default.
- W4200383003 modified "2023-10-16" @default.
- W4200383003 title "Promoting Electrocatalytic Reduction of CO <sub>2</sub> to C <sub>2</sub> H <sub>4</sub> Production by Inhibiting C <sub>2</sub> H <sub>5</sub> OH Desorption from Cu <sub>2</sub> O/C Composite" @default.
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- W4200383003 doi "https://doi.org/10.1002/smll.202105212" @default.
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