Mechanistic study of preferential CO oxidation associate to in situ characterization of heterogeneous catalysts

• Grant number: 12/00567-8
• Support Opportunities: Scholarships in Brazil - Doctorate
• Start date: April 01, 2012
• End date: March 31, 2015
• Field of knowledge: Engineering - Chemical Engineering - Chemical Process Industries
• Principal Investigator: José Maria Correa Bueno
• Grantee: Diego Silva Paz
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil

Abstract

The aim of this work is to understand the catalysts of some metals (M = Pt, Cu and Ir) supported on oxides systems containing reducible oxides as CeO2, TiO2 e Fe2O3 in preferential CO oxidation. The mechanistic study should be coupling with multi-technique approach that will be explored under operando conditions. Two kinds of techniques are planed; the X ray absorption spectroscopy (XAS) and infrared spectroscopy (FTIR) coupled with a mass spectrometer to obtain time-resolved information about the oxidation state, sizes of metal and oxides nano-particles, structure and species formed at the catalyst surface as a function of reaction conditions, nature of catalysts and gas feed of reactor.

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)

PAZ, D. S.; DAMYANOVA, S.; BORGES, L. R.; SANTOS, J. B. O.; BUENO, J. M. C.. Identifying the adsorbed active intermediates on Pt surface and promotion of activity through the redox CeO2 in preferential oxidation of CO in H-2. APPLIED CATALYSIS A-GENERAL, v. 548, p. 15-pg., 2017-11-25. (10/11385-2, 11/50727-9, 12/00567-8)

PAZ, D. S.; DAMYANOVA, S.; BORGES, L. R.; SANTOS, J. B. O.; BUENO, J. M. C.. Identifying the adsorbed active intermediates on Pt surface and promotion of activity through the redox CeO2 in preferential oxidation of CO in H-2. APPLIED CATALYSIS A-GENERAL, v. 548, n. SI, p. 164-178, NOV 25 2017. (12/00567-8, 11/50727-9, 10/11385-2)

BORGES, LAIS R.; LOPEZ-CASTILLO, ALEJANDRO; MEIRA, DEBORA M.; GALLO, JEAN MARCEL R.; ZANCHET, DANIELA; BUENO, JOSE MARIA C.. Effect of the Pt Precursor and Loading on the Structural Parameters and Catalytic Properties of Pt/Al2O3. CHEMCATCHEM, v. 11, n. 13, p. 3064-3074, JUL 4 2019. (11/50727-9, 10/11385-2, 16/02128-2, 12/00567-8)