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Catalysis and characterization of carbon-supported ruthenium for cellulose hydrolysis

Paper ID Volume ID Publish Year Pages File Format Full-Text
41308 45884 2011 7 PDF Available
Title
Catalysis and characterization of carbon-supported ruthenium for cellulose hydrolysis
Abstract

Ru catalyst supported on mesoporous carbon CMK-3 shows high activity and durability for the hydrolysis of cellulose to glucose in hot compressed water at 503 K. The Ru/CMK-3 catalyst also hydrolyzes cellobiose to glucose in water at 393 K. Several physicochemical methods such as XRD, TEM, XPS, H2-TPR, O2-titration, and XAFS were used to characterize active Ru species on CMK-3 and to clarify the formation pathway of the active species. From these studies, we conclude that hydrous Ru oxide RuO2·2H2O is formed on CMK-3 after H2-reduction of RuCl3/CMK-3 at 673 K and subsequent passivation at room temperature, and that the Ru oxide nanoparticles with a mean diameter of 1.1 nm are highly dispersed on CMK-3.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (289 K)Download as PowerPoint slideHighlights► Ru/CMK-3 shows high activity and durability for the hydrolysis of cellulose in water. ► Ru species hydrolyzes cellobiose to glucose without adding any mineral acids. ► Ru on CMK-3 is revealed to be hydrous Ru oxide by physicochemical measurements. ► The hydrous Ru oxide is easily prepared by a conventional impregnation method.

Keywords
Biomass; Cellulose; Hydrolysis; Glucose; Supported Ru catalyst; Hydrous ruthenium oxide
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Catalysis and characterization of carbon-supported ruthenium for cellulose hydrolysis
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 407, Issues 1–2, 4 November 2011, Pages 188–194
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us