title: Effective catalytic conversion of cellulose into high yields of methyl glucosides over sulfonated carbon based catalyst.
abstract: An amorphous carbon based catalyst was prepared by sulfonation of the bio-char obtained from fast pyrolysis (N(2) atm; ≈ 550°C) of biomass. The sulfonated carbon catalyst contained high acidity of 6.28 mmol/g as determined by temperature programmed desorption of ammonia of sulfonated carbon catalyst and exhibited high catalytic performance for the hydrolysis of cellulose. Amorphous carbon based catalyst containing -SO(3)H groups was successfully tested and the complete conversion of cellulose in methanol at moderate temperatures with high yields ca. ≥ 90% of α, β-methyl glucosides in short reaction times was achieved. The methyl glucosides formed in methanol are more stable for further conversion than the products formed in water. The carbon catalyst was demonstrated to be stable for five cycles with slight loss in catalytic activity. The utilization of bio-char as a sulfonated carbon catalyst provides a green and efficient process for cellulose conversion.
authors: Bio-Fuels Division (BFD), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India.
authors: Sambha
authors: S
authors: Dora
authors: Thallada
authors: T
authors: Bhaskar
authors: Rawel
authors: R
authors: Singh
authors: Desavath Viswanatha
authors: DV
authors: Naik
authors: Dilip Kumar
authors: DK
authors: Adhikari
mesh_terms: D002244:Carbon / Q000737:chemistry*; D002384:Catalysis; D002482:Cellulose / Q000737:chemistry / Q000378:metabolism*; D008757:Methylglucosides / Q000737:chemistry / Q000378:metabolism*; D059027:Recycling; D013457:Sulfur Compounds / Q000737:chemistry*; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry
chemical_list: D008757:Methylglucosides; D013457:Sulfur Compounds; D014867:Water; D002244:Carbon; D002482:Cellulose