Jump to main content
Jump to site search


High-efficiency electrochemical hydrodeoxygenation of bio-phenols to hydrocarbon fuels by a superacid-noble metal particle dual-catalyst system

Author affiliations

Abstract

Electrocatalytic hydrogenation (ECH) provides a “green” route to upgrade oxygenated bio-oil under mild conditions, but is still challenged with the issues of low working current density (<60 mA cm−2) and low faradaic efficiency (usually 20–60%) that seriously hinder its practical applications. Herein, we present a dual-catalyst electrochemical route that achieves extremely high faradaic efficiency (>99% for many chemicals) and high working current density (up to 800 mA cm−2) in the hydrogenation of model bio-oil compounds. More importantly, efficient deoxygenation to alkanes, often thought to be very difficult in conventional ECH, was achieved in the aqueous electrolysis. The dual-catalyst system consists of a suspended noble-metal catalyst and soluble polyoxometalate (POM). The theoretical calculations indicate that the POM functions as a superacid, changing the common hydrogenation route to a carbocation mechanism and resulting in effective electrolytic deoxygenation of oxygenates. Because no current flows through the catalyst, even a non-conductive catalyst can be used, which provides a great opportunity for extension to general applications.

Graphical abstract: High-efficiency electrochemical hydrodeoxygenation of bio-phenols to hydrocarbon fuels by a superacid-noble metal particle dual-catalyst system

Back to tab navigation

Supplementary files

Article information


Submitted
30 Jul 2019
Accepted
16 Jan 2020
First published
30 Jan 2020

Energy Environ. Sci., 2020, Advance Article
Article type
Paper

High-efficiency electrochemical hydrodeoxygenation of bio-phenols to hydrocarbon fuels by a superacid-noble metal particle dual-catalyst system

W. Liu, W. You, Y. Gong and Y. Deng, Energy Environ. Sci., 2020, Advance Article , DOI: 10.1039/C9EE02783A

Social activity

Search articles by author

Spotlight

Advertisements