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

摘要: Negative carbon emission technologies are critical for ensuring a future stable climate. However, the gaseous state of CO2 does render indefinite storage this greenhouse gas challenging. Herein, we created liquid metal electrocatalyst that contains metallic elemental cerium nanoparticles, which facilitates electrochemical reduction to layered solid carbonaceous species, at low onset potential −310 mV vs CO2/C. We exploited formation oxide catalyst metal/electrolyte interface, together with promoted room temperature CO2. Due inhibition van der Waals adhesion electrode was remarkably resistant deactivation via coking caused by species. The as-produced materials could be utilised fabrication high-performance capacitor electrodes. Overall, enabled electrocatalytic process may result in viable negative technology.