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Synthesis and characterization of metal oxide-supported Cu-based catalysts for CO2 hydrogenation: the impact of the preparation method on the materials physicochemical properties

Grant number: 19/08521-6
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2019
Effective date (End): July 31, 2020
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Cooperation agreement: BE-BASIC Consortium
Principal Investigator:Janaina Fernandes Gomes
Grantee:Luiza Sanae Shine
Home Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
Associated research grant:17/08420-0 - Multi-approaches strategies for converting CO2 to platform molecules and value-added chemicals: catalysis and electrocatalysis investigations, AP.BIOEN.JP

Abstract

Valorization of carbon dioxide is an important part of the general strategy for reducing CO2 emissions and push chemical and energy companies towards a more sustainable use of the resources. There are different options to convert CO2. Hydrogenation of CO2 to form oxygenates and/or hydrocarbons is the most intensively investigated area of the CO2 conversion. However, in general, catalysts employed in studies comprising the hydrogenation of CO2 suffer with low conversion, low selectivity, low stability and/or high costs. Therefore, the development of more efficient catalysts, preferentially based on non-noble elements, is necessary. In this context, Cu-based catalysts have attracted significant attention due to their relatively lower costs and better catalytic performance towards the conversion of CO2 to chemicals and fuels. The preparation method of these materials was shown to influence their physicochemical properties and catalytic performances for a series of reactions, including alcohols synthesis from CO2 hydrogenation. In the present project, we propose to investigate the impact of the preparation method of metal oxide-supported Cu-based catalysts on their physicochemical characteristics. Different preparation methods will be evaluated, as, for example, co-precipitation, deposition-precipitation, impregnation, etc. Cu-based catalysts may be characterized by: X-ray fluorescence spectroscopy, temperature-programmed reduction with hydrogen, X-ray diffractometry, nitrogen physisorption (applying the B.E.T. method), transmission and scanning electron microscopies, among other techniques.