Advanced search
Start date
Betweenand

Preparation of nanocatalysts with controlled morphology for applications in hydrogen purification and oxidation of contaminated hydrogen for electric energy generation

Grant number: 17/15469-5
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): December 01, 2017
Status:Discontinued
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Roberto Manuel Torresi
Grantee:Rodolfo Molina Antoniassi
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage, AP.TEM
Associated scholarship(s):19/08051-0 - Reshaping of platinum nanoparticles from Pt/C by halide ions into electrochemical applications, BE.EP.PD

Abstract

Large quantities of hydrogen gas are consumed daily by the petroleum industry, chemical processes such as production of ammonia, methanol, and fatty acids. The hydrogen economy has an important environmental appeal, which brings the use of this gas as an energy source, since its burning is free of the releasing gases from combustion engines exhaust. One of the main issues related to the use of hydrogen is the form of its production with a high degree of purity. Among various methods to purify the hydrogen from the reforming process, preferential oxidation of CO with O2 (CO-PROX) is a simple, efficient and economically viable process, which involves catalysts. Considering the catalytic properties that the anisotropic nanomaterials offer, this project will aim to prepare, through one-pot synthesis, Pt nanoparticles with controlled morphologies, directly supported in CeO2, TiO2 and carbon, without any use of stabilizers or anchoring agents. For morphological control of the metallic nanoparticles, only salts of halides will be used, easily removed with a simple wash with water at the end of the synthesis. Size, composition and morphology of the obtained materials will be physicochemically characterized and will be subsequently employed for the catalytic function. The success of this project will contribute to the development of materials that are more active and selective for the reactions of CO-PROX and electro-oxidation of hydrogen contaminated with CO in electrochemical systems.

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)
SANTOS QUEIROZ, CARLA MOREIRA; MACHADO, ARTHUR PIGNATARO; NOBORIKAWA PAIVA, ANA RITA; ANTONIASSI, RODOLFO MOLINA; VAZ, JORGE MOREIRA; SPINACE, ESTEVAM VITORIO. Active Pt/CeO2 catalysts prepared by an alcohol-reduction process for low-temperature CO-PROX reaction. MATERIALS FOR RENEWABLE AND SUSTAINABLE ENERGY, v. 8, n. 3 SEP 2019. Web of Science Citations: 0.
FERREIRA, JOAO C.; CAVALLARI, V, ROGER; BERGAMASCHI, VANDERLEI S.; ANTONIASSI, RODOLFO M.; TEIXEIRA-NETO, ANGELA A.; LINARDI, MARCELO; SILVA, JULIO CESAR M. Palladium nanoparticles supported on mesoporous biocarbon from coconut shell for ethanol electro-oxidation in alkaline media. MATERIALS FOR RENEWABLE AND SUSTAINABLE ENERGY, v. 7, n. 4 NOV 2018. Web of Science Citations: 3.
LEAL, GEORGIA BARBALHO; CIOTTI, LIGIA; WATACABE, BEATRIZ NAOMY; LOUREIRO DA SILVA, DANIELA C.; ANTONIASSI, RODOLFO M.; SILVA, JULIO CESAR M.; LINARDI, MARCELO; GIUDICI, REINALDO; VAZ, JORGE MOREIRA; SPINACE, V, ESTEVAM. Preparation of Au/TiO2 by a facile method at room temperature for the CO preferential oxidation reaction. Catalysis Communications, v. 116, p. 38-42, NOV 2018. Web of Science Citations: 1.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.