1. Modulation of the selectivity of CO2 to CO electroreduction in palladium rich Palladium-Indium nanoparticles
- Author
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Gert-Jan M. Gruter, Marc T. M. Koper, Davide Pavesi, Federico Dattila, Rodrigo García-Muelas, Klaas Jan P. Schouten, Núria López, Dimitra Anastasiadou, Marta C. Figueiredo, Rim van de Poll, Sustainable Chemistry Industrial (HIMS, FNWI), HIMS Other Research (FNWI), Inorganic Materials & Catalysis, and EIRES Chem. for Sustainable Energy Systems
- Subjects
Bimetallic particles ,Nanoparticle ,chemistry.chemical_element ,02 engineering and technology ,010402 general chemistry ,Electrochemistry ,Electrocatalyst ,7. Clean energy ,01 natural sciences ,Catalysis ,Transition metal ,SDG 7 - Affordable and Clean Energy ,Physical and Theoretical Chemistry ,Bimetallic strip ,Chemistry ,CO reduction ,021001 nanoscience & nanotechnology ,0104 chemical sciences ,Chemical engineering ,Intermetallic compounds ,Nanoparticles ,Electrocatalysis ,0210 nano-technology ,Selectivity ,SDG 7 – Betaalbare en schone energie ,Palladium - Abstract
CO2 electroreduction powered by renewable energy is an attractive strategy to close the carbon cycle. Among the possible reduction products, CO is of particular interest due to its large industrial applications. Transition metals in the Pt group are able to electrochemically reduce CO2 to CO, but suffer from CO surface poisoning, which causes a quick deactivation and overall sluggish kinetics. Here, we show that by introducing In to Pd-rich bimetallic particles we can tune the selectivity and limit the surface poisoning of these catalysts. The addition of large amounts of In blocks CO2 reduction activity and leads to a material selective for hydrogen evolution and insensitive to CO poisoning. This study provides insights into the dependence of CO2 reduction selectivity on the composition of Pd-In nanoparticles, revealing the effect that different phases have on catalytic activity. The application of similar screenings to other bimetallic systems can potentially yield cheap, selective, and poison-resistant catalysts for electrochemical applications.
- Published
- 2021
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