High resolution solid state 2D NMR analysis of biomass and biochar.
Identifieur interne : 000249 ( Main/Exploration ); précédent : 000248; suivant : 000250High resolution solid state 2D NMR analysis of biomass and biochar.
Auteurs : Yann Le Brech [France] ; Luc Delmotte ; Jesus Raya ; Nicolas Brosse ; Roger Gadiou ; Anthony Dufour (génie des procédés) [France]Source :
- Analytical chemistry [ 1520-6882 ] ; 2015.
Descripteurs français
- KwdFr :
- MESH :
English descriptors
- KwdEn :
- MESH :
- chemical , chemistry : Charcoal, Polymers.
- methods : Nuclear Magnetic Resonance, Biomolecular.
- Biomass.
Abstract
Solid state NMR methods are required to analyze biomass as a function of its chemical or biological treatment for biofuels, chemicals, or biochar production. The native polymers network in lignocellulosic biomass and other solid materials, such as coal, coke, or biochar, can hardly be analyzed by liquid state NMR due to their poor swelling ability without chemical modification. A (1)H-(13)C two-dimensional heteronuclear correlation (HETCOR) experiment with frequency-switched Lee-Goldburg (FSLG) irradiation is performed on a high field spectrometer (750 MHz). This method leads to previously unattained resolution for biomass and biochar and offers a unique ability to reveal their chemical composition. The formation of aromatic moieties from carbohydrates and lignin thermal conversion is clearly distinguished. This method can be applied to all other carbonaceous materials.
Url:
DOI: 10.1021/ac504237c
PubMed: 25521946
Affiliations:
- France
- Grand Est, Lorraine (région)
- Nancy
- Centre national de la recherche scientifique, Laboratoire réactions et génie des procédés, Université de Lorraine
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Le document en format XML
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