Phil’s co-first author paper with Dr. Anna Klinkova was just published on ACS Catalysis.
You can download a copy of this paper here: DOWNLOAD
The electrochemical reduction of CO2 into renewable chemical
products such as formic acid is an important and challenging goal. Traditional Pd
catalysts suffer from CO poisoning, which leads to current density decay and short
operating lifetimes. Here we explored the ability to control Pd nanoparticle surface
Here we explored the ability to control Pd nanoparticle surface morphology to amplify catalytic activity and increase stability in the electroreduction of CO2 to formate. Through computational studies we have elucidated trends in intermediate binding which govern the selectivity and catalytic activity. We then rationally synthesized Pd nanoparticles having an abundance of high index surfaces to maximize electrocatalytic performance.
This catalyst displays a record current density of 22 mA/cm2 at a low overpotential of −0.2 V with a Faradaic efficiency of 97%, outperforming all previous Pd catalysts in formate electrosynthesis. The findings presented in this work provide rational design principles which highlight morphological control of high-index surfaces for the effective and stable catalytic electroreduction of CO2 to liquid fuels.