Journal ArticleDOI
Hydrolysis of Cellulose by Amorphous Carbon Bearing SO3H, COOH, and OH Groups
Satoshi Suganuma,Kiyotaka Nakajima,Masaaki Kitano,Daizo Yamaguchi,Hideki Kato,Shigenobu Hayashi,Michikazu Hara +6 more
TLDR
The carbon catalyst can be readily separated from the saccharide solution after reaction for reuse in the reaction without loss of activity, and the catalytic performance of the carbon catalyst is attributed to the ability of the material to adsorb beta-1,4 glucan, which does not adsorb to other solid acids.Abstract:
The hydrolysis of cellulose into saccharides using a range of solid catalysts is investigated for potential application in the environmentally benign saccharification of cellulose. Crystalline pure cellulose is not hydrolyzed by conventional strong solid Bronsted acid catalysts such as niobic acid, H-mordenite, Nafion and Amberlyst-15, whereas amorphous carbon bearing SO 3H, COOH, and OH function as an efficient catalyst for the reaction. The apparent activation energy for the hydrolysis of cellulose into glucose using the carbon catalyst is estimated to be 110 kJ mol (-1), smaller than that for sulfuric acid under optimal conditions (170 kJ mol (-1)). The carbon catalyst can be readily separated from the saccharide solution after reaction for reuse in the reaction without loss of activity. The catalytic performance of the carbon catalyst is attributed to the ability of the material to adsorb beta-1,4 glucan, which does not adsorb to other solid acids.read more
Citations
More filters
Journal ArticleDOI
Catalytic Transformation of Lignocellulose into Chemicals and Fuel Products in Ionic Liquids
TL;DR: This review focuses on the catalytic chemical conversion of lignocellulose and its primary ingredients into value-added chemicals and fuel products using ILs as the reaction media.
Journal ArticleDOI
Recent advances in ionic liquid catalysis
TL;DR: In this paper, the advantages and potential of ionic liquids in exploring cleaner catalytic technologies, as compared to traditional catalytic processes, are reviewed with emphasis on four hot fields, viz. biomass conversion, catalytic production of fine chemicals, supported ionic liquid phase catalysis, as well as Friedel-Crafts reactions.
Journal ArticleDOI
Acid Hydrolysis of Cellulose as the Entry Point into Biorefinery Schemes
Roberto Rinaldi,Ferdi Schüth +1 more
TL;DR: This Review focuses on aspects related to the hydrolysis of cellulose as this process is a significant entry point into the biorefinery scheme based on carbohydrates for the production of biofuels and biochemicals.
Journal ArticleDOI
Hydrolysis of cellulose to glucose by solid acid catalysts
Yao-Bing Huang,Yao Fu +1 more
TL;DR: In this article, a review summarizes recent advances in the hydrolysis of cellulose by different types of solid acids, such as sulfonated carbonaceous based acids, polymer based acids and magnetic solid acids.
Journal ArticleDOI
Converting carbohydrates to bulk chemicals and fine chemicals over heterogeneous catalysts
TL;DR: In this article, the authors discuss how carbohydrates can be transformed into a variety of chemicals through heterogeneous catalysis, focusing particularly on oxidation, reduction and dehydration of hexoses, as well as one-pot reactions of di- and polysaccharides.
References
More filters
Journal ArticleDOI
Interpretation of Raman spectra of disordered and amorphous carbon
Andrea C. Ferrari,John Robertson +1 more
TL;DR: In this paper, a model and theoretical understanding of the Raman spectra in disordered and amorphous carbon is given, and the nature of the G and D vibration modes in graphite is analyzed in terms of the resonant excitation of \ensuremath{\pi} states and the long-range polarizability of the long range bonding.
Book
Spectrometric identification of organic compounds
TL;DR: In this paper, a sequence of procedures for identifying an unknown organic liquid using mass, NMR, IR, and UV spectroscopy is presented, along with specific examples of unknowns and their spectra.
Journal ArticleDOI
The path forward for biofuels and biomaterials
Arthur J. Ragauskas,Charlotte K. Williams,Brian H. Davison,George J. P. Britovsek,John Cairney,Charles A. Eckert,William J. Frederick,Jason P. Hallett,David J. Leak,Charles L. Liotta,Jonathan R. Mielenz,Richard J. Murphy,Richard H. Templer,Timothy J. Tschaplinski +13 more
TL;DR: The integration of agroenergy crops and biorefinery manufacturing technologies offers the potential for the development of sustainable biopower and biomaterials that will lead to a new manufacturing paradigm.
Journal ArticleDOI
Toward an aggregated understanding of enzymatic hydrolysis of cellulose: noncomplexed cellulase systems.
TL;DR: It is suggested that it is timely to revisit and reinvigorate functional modeling of cellulose hydrolysis and that this would be highly beneficial if not necessary in order to bring to bear the large volume of information available on cellulase components on the primary applications that motivate interest in the subject.
Journal ArticleDOI
Bio-ethanol--the fuel of tomorrow from the residues of today.
TL;DR: This review gives an overview of the new technologies required and the advances achieved in recent years to bring lignocellulosic ethanol towards industrial production.