Abstract
? 2022 Elsevier B.V.In a catalytic reaction involving nanoparticles, the particle size is an important factor influencing the reactivity. In this research, small PdCu alloy nanoparticles with an average size of 2.7 nm were easily synthesized by the co-reduction of Pd and Cu precursors using potassium bromide (KBr) as a capping agent to achieve size control in an aqueous phase. When the synthesized 2.7 nm-sized PdCu alloy nanoparticles were applied as an electrocatalyst for CO2 reduction reaction (CO2RR), using a gas diffusion electrode system, Faradaic efficiency (FE) of over 80% for CO with a significantly low H2 selectivity (≤2% FE) at 100 mA/cm2 was achieved. The results revealed that the synthesized nanoparticles are highly suitable for CO2-to-CO conversion at high current densities.
NSTL
Elsevier