Michele Melchionna, Miriam Moro, Simone Adorinni, Lucia Nasi, Sara Colussi, Lorenzo Poggini, Silvia Marchesan, Giovanni Valenti, Francesco Paolucci, Maurizio Prato, Paolo Fornasiero
The integration of graphene oxide (GO) into nanostructured Bi2 O3 electrocatalysts for CO2 reduction (CO2 RR) brings up remarkable improvements in terms of performance toward formic acid (HCOOH) production. The GO scaffold is able to facilitate electron transfers toward the active Bi2 O3 phase, amending for the high metal oxide (MO) intrinsic electric resistance, resulting in activation of the CO2 with smaller overpotential. Herein, the structure of the GO-MO nanocomposite is tailored according to two synthetic protocols, giving rise to two different nanostructures, one featuring reduced GO (rGO) supporting Bi@Bi2 O3 core-shell nanoparticles (NP) and the other GO supporting fully oxidized Bi2 O3 NP...
November 28, 2022: ACS Applied Energy Materials