NDLI: Cellulose Conversion with Tungstated-Alumina-Based Catalysts: Influence of the Presence of Platinum and Mechanistic Studies

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Cellulose Conversion with Tungstated-Alumina-Based Catalysts: Influence of the Presence of Platinum and Mechanistic Studies

Year: 2013 Volume: 6 Issue: 2

Year: 2013 Volume: 6 Issue: 1

Cellulose Conversion with Tungstated-Alumina-Based Catalysts: Influence of the Presence of Platinum and Mechanistic Studies

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Chambon, Flora Rataboul, Franck Pinel, Catherine Cabiac, Amandine Guillon, Emmanuelle Essayem, Nadine
Description	Country affiliation: France Author Affiliation: Chambon F ( Institut de Recherche sur la Catalyse et l'Environnement de Lyon, IRCELYON, Université Lyon 1, CNRS, UMR5256, 2 avenue Albert Einstein, 69626 Villeurbanne, France.)
Abstract	The performances of platinum supported on tungstated alumina (Pt/AlW) in the hydrothermal conversion of cellulose at 190 °C under $H_{2}$ pressure were evaluated and compared to that of Pt-free tungstated alumina (AlW). We show that the presence of Pt significantly increased the extent of conversion and led to a different product distribution with the formation of acetol and propylene glycol as the main products and a global yield of up to 40 %. Based on previous reports, we propose the formation of pyruvaldehyde on the Lewis acid sites of the tungstated alumina as a key intermediate. Pyruvaldehyde can then be transformed to acetol and propylene glycol or lactic acid depending on the presence or absence of supported Pt.
File Format	HTM / HTML
ISSN	18645631
Issue Number	3
Volume Number	6
e-ISSN	1864564X
Journal	ChemSusChem
Language	English
Publisher	Wiley-VCH
Publisher Date	2013-03-01
Publisher Place	Germany
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Research Support, Non-u.s. Gov't Chemistry Platinum Hydrogen Discipline Sustainable Chemistry Cellulose Tungsten Compounds Substrate Specificity Aluminum Oxide Catalysis Lewis Acids Journal Article
Content Type	Text
Resource Type	Article
Subject	Energy Environmental Chemistry Materials Science Chemical Engineering

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