What question did this study set out to answer?

To elucidate the potential-dependent surface intermediate dynamics and carbon-carbon coupling mechanisms during electrochemical carbon dioxide reduction on Cu2O nanocubes.

June 11, 2021ACS CatalysisOpen Access

Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO2 Reduction on Cu2O Nanocubes via Operando Raman Spectroscopy

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Authors

CZChao ZhanSun Yat-sen University FDFederico DattilaPolytechnic University of Turin CRClara RettenmaierFritz Haber Institute of the Max Planck Society

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Implication

Operando spectroscopic analysis reveals carbon monoxide coverage drives multicarbon selectivity on copper oxide nanocubes, highlighting mechanistic intermediate control in electrocatalysis.

Key Points

To elucidate the potential-dependent surface intermediate dynamics and carbon-carbon coupling mechanisms during electrochemical carbon dioxide reduction on Cu2O nanocubes.
Monitored the potential-dependent structural reduction of Cu2O nanocubes and intermediate surface coverage using operando Raman spectroscopy.
Modeled carbon monoxide adsorption behavior, intermediate coverage, and preferred carbon-carbon coupling configurations using Density Functional Theory.
Demonstrated that the ratio of the Cu-CO stretching band to the CO rotation band displays a potential-dependent volcano trend matching the Faradaic efficiency for multicarbon products.
Confirmed through combined spectroscopy and computational modeling that carbon monoxide coverage dictates the preferred C–C coupling pathway and selectivity toward multicarbon products.

Cite This Study

Zhan et al. (2021) studied this question.

synapsesocial.com/papers/69dec6107702a00918b0cc41 https://doi.org/10.1021/acscatal.1c01478

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Implication

Operando spectroscopic analysis reveals carbon monoxide coverage drives multicarbon selectivity on copper oxide nanocubes, highlighting mechanistic intermediate control in electrocatalysis.

Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO2 Reduction on Cu2O Nanocubes via Operando Raman Spectroscopy

Discussion

Member takes

Implication

Key Points

Cite This Study

Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO2 Reduction on Cu2O Nanocubes via Operando Raman Spectroscopy

Discussion

Member takes

Implication

Key Points

Cite This Study

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