B‐Cu‐Zn‐Gasdiffusionselektroden für die elektrokatalytische CO<sub>2</sub>‐Reduktion zu C<sub>2+</sub>‐Produkten bei hohen Stromdichten

Copper-based materials are efficient electrocatalysts for the conversion of CO 2 to C 2+ products,a nd most these materials are reconstructed in situ to regenerate active species. It is achallenge to precisely design precatalysts to obtain active sites for the CO 2 reduction reaction (CO 2 RR). Herein, we develop astrategy based on local sulfur doping of aCu-based metal-organic framework precatalyst, in whichthe stable CuÀ Smotif is dispersed in the framework of HKUST-1 (S-HKUST-1). The precatalyst exhibits ahigh ethylene selectivity in an Htype cell with am aximum faradaic efficiency (FE) of 60.0 %, and delivers acurrent density of 400 mA cm À2 with an ethylene FE up to 57.2 %i naflowc ell. Operando X-raya bsorption results demonstrate that Cu d+ species stabilized by the CuÀS motif exist in S-HKUST-1 during CO 2 RR. Density functional theory calculations indicate the partially oxidized Cu d+ at the Cu/Cu x S y interface is favorable for coupling of the *CO intermediate due to the modest distance between coupling sites and optimizedadsorption energy.

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Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Wen

Zhou

Liu

et al. 2021

Angewandte Chemie

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Microenvironment Engineering for the Electrocatalytic CO₂ Reduction Reaction

Yin

Zhou

et al. 2022

Angewandte Chemie

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Rather than just focusing on the catalyst itself in the electrocatalytic CO 2 reduction reaction (eCO 2 RR), as previously reviewed elsewhere, we herein extend the discussion to the special topic of the microenvironment around the electrocatalytic center and present a comprehensive overview of recent research progress. We categorize the microenvironment based on the components relevant to electrocatalytic active sites, i.e., the catalyst surface, substrate, co-reactants, electrolyte, membrane, and reactor. Supported by most of the reported articles, the relevant factors affecting the catalytic performance of eCO 2 RR are then discussed in detail, and existing challenges and potential solutions are mentioned. Perspectives for the future research on eCO 2 RR, including the integration of different microenvironment factors, the extension to industrial application by coupling with carbon capture and conversion, and separation of products, are also discussed.

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Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

et al. 2021

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B‐Cu‐Zn‐Gasdiffusionselektroden für die elektrokatalytische CO₂‐Reduktion zu C₂₊‐Produkten bei hohen Stromdichten

Cited by 4 publications

References 34 publications

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Microenvironment Engineering for the Electrocatalytic CO₂ Reduction Reaction

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

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B‐Cu‐Zn‐Gasdiffusionselektroden für die elektrokatalytische CO2‐Reduktion zu C2+‐Produkten bei hohen Stromdichten

Cited by 4 publications

References 34 publications

Highly Ethylene‐Selective Electrocatalytic CO2 Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Highly Ethylene‐Selective Electrocatalytic CO2 Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Microenvironment Engineering for the Electrocatalytic CO2 Reduction Reaction

Highly Ethylene‐Selective Electrocatalytic CO2 Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Contact Info

Product

Resources

About

B‐Cu‐Zn‐Gasdiffusionselektroden für die elektrokatalytische CO₂‐Reduktion zu C₂₊‐Produkten bei hohen Stromdichten

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts

Microenvironment Engineering for the Electrocatalytic CO₂ Reduction Reaction

Highly Ethylene‐Selective Electrocatalytic CO₂ Reduction Enabled by Isolated Cu−S Motifs in Metal–Organic Framework Based Precatalysts