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Graphene Supported Tungsten Carbide as Catalyst for Electrochemical Reduction of CO2

preprint
submitted on 15.06.2019 and posted on 17.06.2019 by Sahithi Ananthaneni, Rees Rankin
Electrochemical reduction of CO2 to useful chemical and fuels in an energy efficient way is currently an expensive and inefficient process. Recently, low-cost transition metal-carbides (TMCs) are proven to exhibit similar electronic structure similarities to Platinum-Group-Metal (PGM) catalysts and hence can be good substitutes for some important reduction reactions. In this work, we test graphenesupported WC (Tungsten Carbide) nanocluster as an electrocatalyst for the CO2 reduction reaction. Specifically, we perform DFT studies to understand various possible reaction mechanisms and determine the lowest thermodynamic energy landscape of CO2 reduction to various products such as CO, HCOOH, CH3OH, and CH4. This in-depth study of reaction energetics could lead to improvements and develop more efficient electrocatalysts for CO2 reduction.

Funding

Villanova University

History

Email Address of Submitting Author

rb.rankin@villanova.edu

Institution

Villanova University, Department of Chemical Engineering

Country

USA

ORCID For Submitting Author

0000-0003-1674-5149

Declaration of Conflict of Interest

no conflict of interest

Version Notes

preprint draft of paper/manuscript as submitted to Catalysts on June 12, 2019

Exports