Document Type

Article

Publication Date

2023

DOI

10.3389/fchem.2023.1200469

Publication Title

Frontiers in Chemistry

Volume

11

Pages

1200469 (1-8)

Abstract

Selective electrochemical hydrogenation (ECH) of biomass-derived unsaturated organic molecules has enormous potential for sustainable chemical production. However, an efficient catalyst is essential to perform an ECH reaction consisting of superior product selectivity and a higher conversion rate. Here, we examined the ECH performance of reduced metal nanostructures i.e., reduced Ag (rAg) and reduced copper (rCu) prepared via electrochemical or thermal oxidation and electrochemical reduction process, respectively. Surface morphological analysis suggests formation of nanocoral and entangled nanowire structure formation for rAg and rCu catalysts. rCu exhibits slight enhancement in ECH reaction performance in comparison to the pristine Cu. However, the rAg exhibits more than two times higher ECH performance without compromising the selectivity for 5-(HydroxyMethyl) Furfural (HMF) to 2,5-bis(HydroxyMethyl)-Furan (BHMF) formation in comparison to the Ag film. Moreover, similar ECH current density was recorded at reduced working potential by 220 mV for rAg. This high performance of rAg is attributed to the formation of new catalytically active sites during the Ag oxidation and reduction processes. This study demonstrates that rAg can potentially be used for ECH process with minimum energy consumption and a higher production rate.

Rights

© 2023 Muchharla, Dikshit, Pokharel, Garimella, Adedeji, Kumar, Cao, Elsayed-Ali, Sadasivuni, Al-Dhabi, Kumar and Kumar.

This is an open-access article distributed under the terms of the Creative Commons Attribution 4.0 International License (CC BY 4.0). The use, distribution or reproduction in other forums is permitted, provided the original authors and the copyright owners are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

Data Availability

Article states: The original contributions presented in the study are included in the article/Supplementary Material, further inquiries can be directed to the corresponding author.

Original Publication Citation

Muchharla, B., Dikshit, M., Pokharel, U., Garimella, R., Adedeji, A., Kumar, D. K., Cao, W., Elsayed–Ali, H., Sadasivuni, K. K., Al-Dhabi, N. A., Kumar, S., & Kumar, B. (2023). Reduced metal nanocatalysts for selective electrochemical hydrogenation of biomass-derived 5-(hydroxymethyl)furfural to 2, 5-bis(hydroxymethyl)furan in ambient conditions. Frontiers in Chemistry, 11, 1-8, Article 1200469. https://doi.org/10.3389/fchem.2023.1200469

ORCID

0000-0002-1329-5018 (Elsayed-Ali), 0000-0003-3173-6101 (Kumar)

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