(127d) Study of Carbon Supported Cupd Alloy Nanoparticles with Pd-Rich Surface for the Electrochemical Interconversion between CO2 and Formate
AIChE Annual Meeting
2020
2020 Virtual AIChE Annual Meeting
Catalysis and Reaction Engineering Division
Electrochemical CO2 Conversion II
Tuesday, November 17, 2020 - 8:45am to 9:00am
In this work, we achieved this by modifying the electronic surface properties of Pd by synthesizing carbon-supported copper-palladium nanoparticles (CuPd/C NPs). The size of the nanoparticles was determined by transmission electron microscopy (TEM). The crystallographic orientation of the surface of the NPs was determined by X-ray powder diffraction (XRD). Their electronic surface property was measured by X-ray photoelectron spectroscopy (XPS). Finally, the electrochemical activity and stability toward eCO2R and FO were measured by cyclic voltammetry (CV) and controlled potential electrolysis (CPE). The results of XPS and CV measurements confirmed that by decreasing the binding energies of the Pd-H and the Pd-O on the surface of CuPd/C modified the catalytic activity toward eCO2R and FO. The lowering of the binding energy improved the electrochemical activity of this bimetallic CuPd/C catalyst toward both eCO2R and FO.