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Room temperature CO2 reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces

Journal Article


Abstract


  • Negative carbon emission technologies are critical for ensuring a future stable climate. However, the gaseous state of CO 2 does render the indefinite storage of this greenhouse gas challenging. Herein, we created a liquid metal electrocatalyst that contains metallic elemental cerium nanoparticles, which facilitates the electrochemical reduction of CO 2 to layered solid carbonaceous species, at a low onset potential of −310 mV vs CO 2 /C. We exploited the formation of a cerium oxide catalyst at the liquid metal/electrolyte interface, which together with cerium nanoparticles, promoted the room temperature reduction of CO 2 . Due to the inhibition of van der Waals adhesion at the liquid interface, the electrode was remarkably resistant to deactivation via coking caused by solid carbonaceous species. The as-produced solid carbonaceous materials could be utilised for the fabrication of high-performance capacitor electrodes. Overall, this liquid metal enabled electrocatalytic process at room temperature may result in a viable negative emission technology.

Authors


  •   Esrafilzadeh, Dorna (external author)
  •   Zavabeti, Ali (external author)
  •   Jalili, Rouhollah (external author)
  •   Atkin, Paul (external author)
  •   Choi, Jaecheol (external author)
  •   Carey, Benjamin (external author)
  •   Brkljaca, Robert (external author)
  •   O'Mullane, Anthony P. (external author)
  •   Dickey, Michael (external author)
  •   Officer, David L.
  •   MacFarlane, Douglas R. (external author)
  •   Daeneke, Torben (external author)
  •   Kalantar-Zadeh, Kourosh (external author)

Publication Date


  • 2019

Citation


  • Esrafilzadeh, D., Zavabeti, A., Jalili, R., Atkin, P., Choi, J., Carey, B. J., Brkljaca, R., O'Mullane, A. P., Dickey, M. D., Officer, D. L., MacFarlane, D. R., Daeneke, T. & Kalantar-Zadeh, K. (2019). Room temperature CO2 reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces. Nature Communications, 10 (1), 865-1-865-8.

Scopus Eid


  • 2-s2.0-85062077373

Start Page


  • 865-1

End Page


  • 865-8

Volume


  • 10

Issue


  • 1

Place Of Publication


  • United Kingdom

Abstract


  • Negative carbon emission technologies are critical for ensuring a future stable climate. However, the gaseous state of CO 2 does render the indefinite storage of this greenhouse gas challenging. Herein, we created a liquid metal electrocatalyst that contains metallic elemental cerium nanoparticles, which facilitates the electrochemical reduction of CO 2 to layered solid carbonaceous species, at a low onset potential of −310 mV vs CO 2 /C. We exploited the formation of a cerium oxide catalyst at the liquid metal/electrolyte interface, which together with cerium nanoparticles, promoted the room temperature reduction of CO 2 . Due to the inhibition of van der Waals adhesion at the liquid interface, the electrode was remarkably resistant to deactivation via coking caused by solid carbonaceous species. The as-produced solid carbonaceous materials could be utilised for the fabrication of high-performance capacitor electrodes. Overall, this liquid metal enabled electrocatalytic process at room temperature may result in a viable negative emission technology.

Authors


  •   Esrafilzadeh, Dorna (external author)
  •   Zavabeti, Ali (external author)
  •   Jalili, Rouhollah (external author)
  •   Atkin, Paul (external author)
  •   Choi, Jaecheol (external author)
  •   Carey, Benjamin (external author)
  •   Brkljaca, Robert (external author)
  •   O'Mullane, Anthony P. (external author)
  •   Dickey, Michael (external author)
  •   Officer, David L.
  •   MacFarlane, Douglas R. (external author)
  •   Daeneke, Torben (external author)
  •   Kalantar-Zadeh, Kourosh (external author)

Publication Date


  • 2019

Citation


  • Esrafilzadeh, D., Zavabeti, A., Jalili, R., Atkin, P., Choi, J., Carey, B. J., Brkljaca, R., O'Mullane, A. P., Dickey, M. D., Officer, D. L., MacFarlane, D. R., Daeneke, T. & Kalantar-Zadeh, K. (2019). Room temperature CO2 reduction to solid carbon species on liquid metals featuring atomically thin ceria interfaces. Nature Communications, 10 (1), 865-1-865-8.

Scopus Eid


  • 2-s2.0-85062077373

Start Page


  • 865-1

End Page


  • 865-8

Volume


  • 10

Issue


  • 1

Place Of Publication


  • United Kingdom