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Chao Zhan, Federico Dattila, Clara Rettenmaier, Arno Bergmann, Stefanie Kühl, Rodrigo García‐Muelas, Núria López, Beatriz Roldán Cuenya
High Resolution Image Download MS PowerPoint Slide Electrochemical reduction of carbon dioxide (CO 2 RR) is an attractive route to close the carbon cycle and potentially turn CO 2 into valuable chemicals and fuels. However, the highly selective generation of multicarbon products remains a challenge, suffering from poor mechanistic understanding. Herein, we used operando Raman spectroscopy to track the potential-dependent reduction of Cu 2 O nanocubes and the surface coverage of reaction intermediates. In particular, we discovered that the potential-dependent intensity ratio of the Cu–CO stretching band to the CO rotation band follows a volcano trend similar to the CO 2 RR Faradaic efficiency for multicarbon products. By combining operando spectroscopic insights with Density Functional Theory, we proved that this ratio is determined by the CO coverage and that a direct correlation exists between the potential-dependent CO coverage, the preferred C–C coupling configuration, and the selectivity to C 2+ products. Thus, operando Raman spectroscopy can serve as an effective method to quantify the coverage of surface intermediates during an electrocatalytic reaction.
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Zhan, C., Dattila, F., Rettenmaier, C., Bergmann, A., Kühl, S., García‐Muelas, R., López, N., & Cuenya, B. R. (2021). Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy. ACS Catalysis, 11(13), 7694–7701. https://doi.org/10.1021/acscatal.1c01478
Zhan, Chao, et al. "Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy." ACS Catalysis, vol. 11, no. 13, 2021, pp. 7694–7701, https://doi.org/10.1021/acscatal.1c01478.
Zhan, Chao, Federico Dattila, Clara Rettenmaier, Arno Bergmann, Stefanie Kühl, Rodrigo García‐Muelas, Núria López, and Beatriz Roldán Cuenya. "Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy." ACS Catalysis 11, no. 13 (2021): 7694–7701. https://doi.org/10.1021/acscatal.1c01478.
Zhan C., Dattila F., Rettenmaier C. [и др.] Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy // ACS Catalysis. — 2021. — Vol. 11, № 13. — P. 7694–7701. — URL: https://doi.org/10.1021/acscatal.1c01478
@article{zhan2021revealing,
title = {{Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy}},
author = {Chao Zhan and Federico Dattila and Clara Rettenmaier and Arno Bergmann and Stefanie Kühl and Rodrigo García‐Muelas and Núria López and Beatriz Roldán Cuenya},
journal = {ACS Catalysis},
year = {2021},
volume = {11},
number = {13},
pages = {7694--7701},
doi = {10.1021/acscatal.1c01478},
url = {https://doi.org/10.1021/acscatal.1c01478}
}TY - JOUR AU - Zhan, Chao AU - Dattila, Federico AU - Rettenmaier, Clara AU - Bergmann, Arno AU - Kühl, Stefanie AU - García‐Muelas, Rodrigo AU - López, Núria AU - Cuenya, Beatriz Roldán TI - Revealing the CO Coverage-Driven C–C Coupling Mechanism for Electrochemical CO 2 Reduction on Cu 2 O Nanocubes via Operando Raman Spectroscopy JO - ACS Catalysis VL - 11 IS - 13 SP - 7694 EP - 7701 PY - 2021 DA - 2021/06/11 DO - 10.1021/acscatal.1c01478 UR - https://doi.org/10.1021/acscatal.1c01478 ER -
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