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Design of nanocatalysts coated by oxides for synthesis of important biobased products.

Grant number: 12/10469-3
Support Opportunities:Scholarships in Brazil - Post-Doctoral
Effective date (Start): September 01, 2012
Effective date (End): February 28, 2015
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Liane Marcia Rossi
Grantee:Natália de Jesus da Silva Costa
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated scholarship(s):12/19501-7 - Design of palladium nanocatalysts for selective oxidation of 5-hydroxymethylfurfural, BE.EP.PD

Abstract

The current utilization of renewable biomass - carbohydrates in general, and sugars in particular, as feedstock for the chemical industry is modest when considering their ready availability at low cost and the huge as yet unexploited potential. Efforts to boost the production of bio-based chemicals and to replace those derived from petrochemical sources certainly include the development of new catalytic processes. The use of metal nanoparticles offers unique opportunities in catalysis, and excellent chance for the development of viable industrial processes for conversion of renewable biomass into bio-based chemicals. Nanocatalysts have been studied and exhibit excellent catalytic properties and high selectivity in various reactions, especially catalytic oxidations, however they have limited impact on industrial catalysis. A challenge still to be overcome is the preparation of catalysts of controlled size that are sufficiently stable, while maintaining an acceptable activity and selectivity to real conditions. This research project aims to develop stable a selective catalytic systems based on gold and palladium coated with oxides in a core-shell structure for selective oxidation of sugars derivatives. The classes of organic compounds containing oxygen, such as epoxides, ketones, aldehydes, alcohols and acids, are intermediates in the manufacture of plastics, detergents, paints, etc. In this proposal we intend to explore the use of these catalysts in the selective oxidation of 5-hydroximethylfurural, a derivate from fructose with great applicability in fine chemistry industry.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
COSTA, NATALIA J. S.; VONO, LUCAS L. R.; WOJCIESZAK, ROBERT; TEIXIERA-NETO, ERICO; PHILIPPOT, KARINE; ROSSI, LIANE M.. One-pot organometallic synthesis of alumina-embedded Pd nanoparticles. DALTON TRANSACTIONS, v. 46, n. 41, p. 14318-14324, . (12/19501-7, 13/11298-0, 12/10469-3, 14/15159-8)

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