Journal ArticleDOI
Solid Acids for Green Chemistry
TLDR
Solid acids and especially those based on micelle-templated silicas and other mesoporous high surface area support materials are beginning to play a significant role in the greening of fine and specialty chemicals manufacturing processes.Abstract:
Solid acids and especially those based on micelle-templated silicas and other mesoporous high surface area support materials are beginning to play a significant role in the greening of fine and speciality chemicals manufacturing processes. A wide range of important organic reactions can be efficiently catalyzed by these materials, which can be designed to provide different types of acidity as well as high degrees of reaction selectivity. The solid acids generally have high turnover numbers and can be easily separated from the organic components. The combination of this chemistry with innovative reaction engineering offers exciting opportunities for innovative green chemical manufacturing in the future.read more
Citations
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Catalytic conversion of lignocellulosic biomass to fine chemicals and fuels
TL;DR: This critical review provides insights into the state-of-the-art accomplishments in the chemocatalytic technologies to generate fuels and value-added chemicals from lignocellulosic biomass, with an emphasis on its major component, cellulose.
Journal ArticleDOI
Lewis Acids: From Conventional Homogeneous to Green Homogeneous and Heterogeneous Catalysis
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
TL;DR: 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.
Journal ArticleDOI
Green chemistry: biodiesel made with sugar catalyst.
Masakazu Toda,Atsushi Takagaki,Mai Okamura,Junko N. Kondo,Shigenobu Hayashi,Kazunari Domen,Michikazu Hara +6 more
TL;DR: This high-performance catalyst, which consists of stable sulphonated amorphous carbon, is recyclable and its activity markedly exceeds that of other solid acid catalysts tested for ‘biodiesel’ production.
Journal ArticleDOI
Technologies for production of biodiesel focusing on green catalytic techniques: A review
TL;DR: In this paper, various technological methods to produce biodiesel being used in industries and academia are reviewed, and the most common types of catalysts; homogeneous liquids and heterogeneous solids, are discussed at length in the paper.
References
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Journal ArticleDOI
Ordered mesoporous molecular sieves synthesized by a liquid-crystal template mechanism
TL;DR: In this paper, the synthesis of mesoporous inorganic solids from calcination of aluminosilicate gels in the presence of surfactants is described, in which the silicate material forms inorganic walls between ordered surfactant micelles.
Book
Green Chemistry: Theory and Practice
Paul T. Anastas,John C. Warner +1 more
TL;DR: Green Chemistry: What is green chemistry? as discussed by the authors presents the principles of green chemistry and evaluates the impact of chemistry on the environment. But, it is not a complete overview of all of the issues involved in green chemistry.
Journal ArticleDOI
A neutral templating route to mesoporous molecular sieves.
TL;DR: A neutral templating route for preparing mesoporous molecular sieves is demonstrated based on hydrogen-bonding interactions and self-assembly between neutral primary amine micelles (S�) and neutral inorganic precursors (l�).
Journal ArticleDOI
Green chemistry: challenges and opportunities
TL;DR: The green chemistry revolution is providing an enormous number of challenges to those who practice chemistry in industry, education and research as discussed by the authors. With these challenges however, there are an equal number of opportunities to discover and apply new chemistry, to improve the economics of chemical manufacturing and to enhance the much-tarnished image of chemistry.
Journal ArticleDOI
Sulfated zirconia and its modified versions as promising catalysts for industrial processes
Ganapati D. Yadav,Jayesh J. Nair +1 more
TL;DR: In this article, the chemistry and engineering aspects of sulfated zirconia catalyst and its modified forms are discussed, and the surface properties of these catalysts can be further modified in conjunction with noble or transition metals as promoters as well as with carbon molecular sieves.