Direct Evidence for Reaction between Cellulose and CO2from Nuclear Magnetic Resonance
Artikel i vetenskaplig tidskrift, 2021

The direct reaction between carbohydrates and CO2 has recently attracted attention in the context of cellulose dissolution and derivatization as well as carbon capture applications. We have directly demonstrated the formation of cellulose carbonate upon the introduction of CO2 into a non-aqueous cellulose solution by nuclear magnetic resonance spectroscopy. Comparison of the observed spectra with accurate electronic structure calculations of the changes in chemical shifts upon reaction allowed us to confirm the expectation that CO2 reacts with the hydroxyl group on carbon 6 of the cellulose but not exclusively this hydroxyl group. We found good agreement between predicted and measured chemical shifts using a simple computational method.

Carbonic acid hemiesters

Carbon capture

Cellulose dissolution

Organic carbonates

NMR

Electronic structure calculations

Författare

Maria Gunnarsson

Chalmers, Kemi och kemiteknik, Kemiteknik, Skogsindustriell kemiteknik

Diana Bernin

Chalmers, Kemi och kemiteknik, Kemiteknik, Kemisk apparat- och reaktionsteknik

Merima Hasani

Chalmers, Kemi och kemiteknik, Kemiteknik, Skogsindustriell kemiteknik

Kungliga Tekniska Högskolan (KTH)

Mikael Lund

Kemiska Institutionen

Lunds universitet

Erik Bialik

Molecules in Motion

ACS Sustainable Chemistry & Engineering

2168-0485 (eISSN)

Vol. In Press

Ämneskategorier

Materialkemi

Teoretisk kemi

Den kondenserade materiens fysik

DOI

10.1021/acssuschemeng.1c05863

Mer information

Senast uppdaterat

2021-11-09