Synthesis of Sn4P3/reduced graphene oxide nanocomposites as highly efficient electrocatalysts for CO2 reduction.

Sn4P3/reduced graphene oxide nanocomposites exhibited high selectivity for CO over a wide potential range from −2.2 V to −2.5 V vs. Ag/Ag+. The maximum faradaic efficiency for CO can reach 96.6% with a high current density of 68.0 mA cm−2. The high efficiency and selectivity can be attributed to the modified electronic structure of Sn sites, the small Sn4P3 nanoparticles and their dense packing in a conductive matrix, leading to a high density of active sites for adsorbing CO2 and stabilizing the CO2˙− intermediate. [ABSTRACT FROM AUTHOR]