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Operando generated ordered heterogeneous catalyst for the selective conversion of CO2 to methanol

Cherevotan, Arjun, Raj, Jithu, Dheer, Lakshay, Roy, Soumyabrata, Sarkar, Shreya, Das, Risov, Vinod, Chathakudath P., Xu, Shaojun, Wells, Peter, Waghmare, Umesh V. and Peter, Sebastian C. 2021. Operando generated ordered heterogeneous catalyst for the selective conversion of CO2 to methanol. ACS Energy Letters 6 (2) , 509–516. 10.1021/acsenergylett.0c02614

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The discovery of new materials for efficient transformation of carbon dioxide (CO2) into desired fuel can revolutionize large-scale renewable energy storage and mitigate environmental damage due to carbon emissions. In this work, we discovered an operando generated stable Ni–In kinetic phase that selectively converts CO2 to methanol (CTM) at low pressure compared to the state-of-the-art materials. The catalytic nature of a well-known methanation catalyst, nickel, has been tuned with the introduction of inactive indium, which enhances the CTM process. The remarkable change in the mechanistic pathways toward methanol production has been mapped by operando diffuse reflectance infrared Fourier transform spectroscopy analysis, corroborated by first-principles calculations. The ordered arrangement and pronounced electronegativity difference between metals are attributed to the complete shift in mechanism. The approach and findings of this work provide a unique advance toward the next-generation catalyst discovery for going beyond the state-of-the-art in CO2 reduction technologies.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Chemistry
Cardiff Catalysis Institute (CCI)
Publisher: American Chemical Society
ISSN: 2380-8195
Date of Acceptance: 11 January 2021
Last Modified: 11 Mar 2021 11:00

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