SCHEDULED MAINTENANCE
Cellulose-derived carbon bearing –Cl and –SO3H groups as a highly selective catalyst for the hydrolysis of cellulose to glucose†
Abstract
A solid acid catalyst (HA–CC–SO3H) was synthesized by the sulfonation of amorphous carbon derived from the carbonization of dilute hydrochloric acid-pretreated microcrystalline cellulose. It was found that Cl− ions are grafted onto the cellulose-derived carbon and affect the composition and structure of the carbon carrier during the carbonization process. The electrons of the aromatic carbons transfer to –Cl and –SO3H groups, which influence their electronic state. In the cellulose hydrolysis process, the active electronic states make the –Cl groups more liable to form hydrogen bonds with cellulose, and the –SO3H groups with stronger acidity easily break the glycosidic bonds of cellulose to produce glucose. The HA–CC–SO3H catalyst exhibits excellent glucose selectivity (95.8%) at a moderate temperature (155 °C) under hydrothermal conditions.
Please wait while we load your content...
