Weak-acid sites catalyze the hydrolysis of crystalline cellulose to glucose in water: importance of post-synthetic functionalization of the carbon surface.
Angew Chem Int Ed Engl
; 54(38): 11050-3, 2015 Sep 14.
Article
em En
| MEDLINE
| ID: mdl-26276901
ABSTRACT
The direct hydrolysis of crystalline cellulose to glucose in water without prior pretreatment enables the transformation of biomass into fuels and chemicals. To understand which features of a solid catalyst are most important for this transformation, the nanoporous carbon material MSC-30 was post-synthetically functionalized by oxidation. The most active catalyst depolymerized crystalline cellulose without prior pretreatment in water, providing glucose in an unprecedented 70 % yield. In comparison, virtually no reaction was observed with MSC-30, even when the reaction was conducted in aqueous solution at pHâ
2. As no direct correlations between the activity of this solid-solid reaction and internal-site characteristics, such as the ß-glu adsorption capacity and the rate of catalytic hydrolysis of adsorbed ß-glu strands, were observed, contacts of the external surface with the cellulose crystal are thought to be key for the overall efficiency.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Ácidos
/
Carbono
/
Celulose
/
Glucose
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2015
Tipo de documento:
Article