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Bridging Thermal Catalysis and Electrocatalysis:...
Journal article

Bridging Thermal Catalysis and Electrocatalysis: Catalyzing CO2 Conversion with Carbon‐Based Materials

Abstract

Understanding the differences between reactions driven by elevated temperature or electric potential remains challenging, largely due to materials incompatibilities between thermal catalytic and electrocatalytic environments. We show that Ni, N-doped carbon (NiPACN), an electrocatalyst for the reduction of CO2 to CO (CO2 R), can also selectively catalyze thermal CO2 to CO via the reverse water gas shift (RWGS) representing a direct analogy between catalytic phenomena across the two reaction environments. Advanced characterization techniques reveal that NiPACN likely facilitates RWGS on dispersed Ni sites in agreement with CO2 R active site studies. Finally, we construct a generalized reaction driving-force that includes temperature and potential and suggest that NiPACN could facilitate faster kinetics in CO2 R relative to RWGS due to lower intrinsic barriers. This report motivates further studies that quantitatively link catalytic phenomena across disparate reaction environments.

Authors

Koshy DM; Nathan SS; Asundi AS; Abdellah AM; Dull SM; Cullen DA; Higgins D; Bao Z; Bent SF; Jaramillo TF

Journal

Angewandte Chemie International Edition, Vol. 60, No. 32, pp. 17472–17480

Publisher

Wiley

Publication Date

August 2, 2021

DOI

10.1002/anie.202101326

ISSN

1433-7851

Labels

Fields of Research (FoR)

Sustainable Development Goals (SDG)

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