Imperial College London

Professor Tom Welton

Faculty of Natural SciencesDepartment of Chemistry

Professor of Sustainable Chemistry



+44 (0)20 7594 5763t.welton Website




601AMolecular Sciences Research HubWhite City Campus






BibTex format

author = {De, Gregorio GF and Prado, R and Vriamont, C and Erdocia, X and Labidi, J and Hallett, JP and Welton, T},
doi = {10.1021/acssuschemeng.6b01339},
journal = {ACS Sustainable Chemistry and Engineering},
pages = {6031--6036},
title = {Oxidative Depolymerization of Lignin Using a Novel Polyoxometalate-Protic Ionic Liquid System},
url = {},
volume = {4},
year = {2016}

RIS format (EndNote, RefMan)

AB - Oxidative depolymerization of lignin obtained from pine and willow can be achieved in a novel system encompassing the ionic liquid (IL) 1-butylimidazolium hydrogensulfate coupled with a vanadium based polyoxometalate (POM) under oxygen rich conditions. Along with an array of phenols and functionalized aromatics, vanillin and syringaldehyde were the main products extracted from the IL. The overall yield of aldehyde products were shown to be higher on lignin samples obtained with shorter pretreatment times, with vanillin being the exclusive aldehyde product obtained from pine. In the presence of molecular oxygen, the highest yield of aldehyde products was obtained when 5 wt % of the POM relative to the IL was employed and constituted the major product in the extracted oils. This system succeeds in exploiting the ability of ILs to depolymerize lignin and the remarkable properties of the POM to oxidize the lignin fragments into useful platform chemicals.
AU - De,Gregorio GF
AU - Prado,R
AU - Vriamont,C
AU - Erdocia,X
AU - Labidi,J
AU - Hallett,JP
AU - Welton,T
DO - 10.1021/acssuschemeng.6b01339
EP - 6036
PY - 2016///
SN - 2168-0485
SP - 6031
TI - Oxidative Depolymerization of Lignin Using a Novel Polyoxometalate-Protic Ionic Liquid System
T2 - ACS Sustainable Chemistry and Engineering
UR -
UR -
UR -
VL - 4
ER -