A comparative study of thermal- and electrocatalytic conversion of furfural: methylfuran as a primary and major product
Journal Article
·
· Journal of Applied Electrochemistry
- Univ. of Oklahoma, Norman, OK (United States). Center for Interfacial Reaction Engineering and School of Chemical, Biological and Materials Engineering; University of Oklahoma
- Univ. of Oklahoma, Norman, OK (United States). Center for Interfacial Reaction Engineering and School of Chemical, Biological and Materials Engineering; Loyola College, Tamil Nadu, Chennai (India)
- Univ. of Oklahoma, Norman, OK (United States). Center for Interfacial Reaction Engineering and School of Chemical, Biological and Materials Engineering
Controlling reaction selectivity represents a fundamental challenge in heterogeneous catalysis. Here, we compare the selectivity in aqueous-phase thermal catalytic and electrocatalytic conversion of furfural and report the fundamental difference in elementary steps in the two reaction systems. Specifically, we observed that furfural alcohol and 2-methylfuran, which is the hydrogenation and hydrogenolysis product of furfural, respectively, are both primary products in electrocatalysis over a Cu electrode, with 2-methylfuran dominating the product distribution under electrode potentials between -0.55 and -0.75 V versus RHE. By contrast, in an aqueous-phase thermal reaction using a SiO2-supported Cu catalyst, furfural alcohol and its derivatives from the ring-rearrangement reaction are the major products, without production of 2-methylfuran, at the reaction temperature between 140 and 200 °C. Here, we propose that the distinct selectivity trends for oxygenate conversion via thermal and electrocatalytic reduction result from the distinct sequence of proton attack to the aldehyde group and may be generally true for reduction reactions of other biomass-derived oxygenates.
- Research Organization:
- Univ. of Oklahoma, Norman, OK (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division
- Grant/Contract Number:
- SC0018284
- OSTI ID:
- 1775274
- Journal Information:
- Journal of Applied Electrochemistry, Journal Name: Journal of Applied Electrochemistry Journal Issue: 1 Vol. 51; ISSN 0021-891X
- Publisher:
- SpringerCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Kinetics of furfural electrochemical hydrogenation and hydrogenolysis in acidic media on copper
Mechanisms of Furfural Reduction on Metal Electrodes: Distinguishing Pathways for Selective Hydrogenation of Bioderived Oxygenates
Journal Article
·
Mon Aug 16 00:00:00 EDT 2021
· Reaction Chemistry & Engineering
·
OSTI ID:1871805
Mechanisms of Furfural Reduction on Metal Electrodes: Distinguishing Pathways for Selective Hydrogenation of Bioderived Oxygenates
Journal Article
·
Wed Sep 13 00:00:00 EDT 2017
· Journal of the American Chemical Society
·
OSTI ID:1394816