Modulation of the selectivity of CO2 to CO electroreduction in palladium rich Palladium-Indium nanoparticles

CO2 electroreduction powered by renewable energy is an attractive strategy to close the carbon cycle. Among possible reduction products, CO of particular interest due its large industrial applications. Transition metals in Pt group are able electrochemically reduce CO, but suffer from surface poisoning, which causes a quick deactivation and overall sluggish kinetics. Here, we show that introducing In Pd-rich bimetallic particles can tune selectivity limit poisoning these catalysts. The addition amounts blocks activity leads material selective for hydrogen evolution insensitive poisoning. This study provides insights into dependence on composition Pd-In nanoparticles, revealing effect different phases have catalytic activity. application similar screenings other systems potentially yield cheap, selective, poison-resistant catalysts electrochemical