Issue 10, 2013
From the journal:

Green Chemistry

Revisiting the Brønsted acid catalysed hydrolysis kinetics of polymeric carbohydrates in ionic liquids by in situ ATR-FTIR spectroscopy†

Andreas J. Kunov-Kruse,*a   Anders Riisager,*a   Shunmugavel Saravanamurugan,a   Rolf W. Berg,b   Steffen B. Kristensena  and  Rasmus Fehrmanna  

* Corresponding authors

a Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Building 207, DK-2800 Kgs. Lyngby, Technical University of Denmark, Denmark
E-mail: ar@kemi.dtu.dk, ajoku@kemi.dtu.dk
Fax: +45 45883136
Tel: +45 45252390

b Department of Chemistry, Building 207, DK-2800 Kgs. Lyngby, Technical University of Denmark, Denmark

Abstract

A new versatile method to measure rates and determine activation energies for the Brønsted acid catalysed hydrolysis of cellulose and cellobiose (and other polymeric carbohydrates) in ionic liquids is demonstrated by following the C–O stretching band of the glycoside bond with in situ ATR-FTIR. An activation energy in excellent agreement with the literature was determined for cellulose hydrolysis, whereas a distinctly lower activation energy was determined for cellobiose hydrolysis. The methodology also allowed to independently determine activation energies for the formation of 5-hydroxymethylfurfural in the systems.

Graphical abstract: Revisiting the Brønsted acid catalysed hydrolysis kinetics of polymeric carbohydrates in ionic liquids by in situ ATR-FTIR spectroscopy

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Article information

DOI
https://doi.org/10.1039/C3GC41174E
Article type
Paper
Submitted
18 Jun 2013
Accepted
22 Jul 2013
First published
22 Jul 2013
This article is Open Access

Green Chem., 2013,15, 2843-2848

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Revisiting the Brønsted acid catalysed hydrolysis kinetics of polymeric carbohydrates in ionic liquids by in situ ATR-FTIR spectroscopy

A. J. Kunov-Kruse, A. Riisager, S. Saravanamurugan, R. W. Berg, S. B. Kristensen and R. Fehrmann, Green Chem., 2013, 15, 2843 DOI: 10.1039/C3GC41174E

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