Volume 247, 2023

Selective electrosynthesis of platform chemicals from the electrocatalytic reforming of biomass-derived hexanediol

Abstract

6-Hydroxyhexanoic acid and adipic acid are platform chemicals and are widely used as building blocks for the synthesis of important polymers. Nevertheless, the industrial syntheses of these two chemicals are fossil fuel-based and involve the use of corrosive acid and emission of the NOx greenhouse gas. In this study, the electrosynthesis of 6-hydroxyhexanoic acid and adipic acid from the electrochemical oxidation of hexanediol at the nanoporous nickel oxyhydroxide modified electrode was explored as an environmentally-benign alternative to the industrial syntheses of 6-hydroxyhexanoic acid and adipic acid. The effects of electrolysis conditions, including the electrolyte pH and applied potentials, on faradaic efficiency and product distribution of the electrochemical oxidation of hexanediol, were thoroughly examined through a series of controlled-potential electrolyses. In addition, the scale-up electrosynthesis of 6-hydroxyhexanoic acid and adipic acid using a flow-type electrolyzer was also demonstrated.

Graphical abstract: Selective electrosynthesis of platform chemicals from the electrocatalytic reforming of biomass-derived hexanediol

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Supplementary files

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Article information

Article type
Paper
Submitted
25 mar. 2023
Accepted
16 may. 2023
First published
16 may. 2023

Faraday Discuss., 2023,247, 159-171

Selective electrosynthesis of platform chemicals from the electrocatalytic reforming of biomass-derived hexanediol

Y. Liao, S. Huang and C. Lin, Faraday Discuss., 2023, 247, 159 DOI: 10.1039/D3FD00073G

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