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Selected zeolite structures as supports for transition metal oxides for selective conversion of methane into value added chemicals

Grant number: 19/12201-7
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): August 01, 2019
Effective date (End): July 31, 2022
Field of knowledge:Engineering - Chemical Engineering - Chemical Technology
Principal researcher:Leandro Martins
Grantee:Natália Hadler Marins
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Associated research grant:18/01258-5 - Novel chemical catalytic and photocatalytic processes for the direct conversion of methane and CO2 to products, AP.TEM
Associated scholarship(s):20/07265-3 - Synthesis of hierarchical mordenite and chabazite zeolites and their catalytic properties, BE.EP.PD


In the last years, the obtaining of products from the hydrogenation of carbon dioxide (CO2) has been the focus of researches because it is an environmentally sustainable alternative for the utilization and use of CO2, which is one of the main greenhouse gases and presents high emission levels in the atmosphere. The proposal is that the process occurs in three stages, considering the specificity of each reaction, the kinetics and use of different reagents (hydrogen or oxygen): (1) hydrogenation of CO2; (2) oxidation of methane to methanol with molecular oxygen, and (3) conversion of methanol into products. In this project, porous multifunction catalysts based on metal oxides exchanged with copper oxo-cations or CuFe2O4 impregnated on zeolites will be studied in order to obtain distinguished active sites to conduct the reactions 2 and 3, isolated or coupled in a single reactor. Different reaction conditions and catalytic bed arrangements will be addressed in this project. Characterizations such as XANES, EXAFS and IR-DRIFTS in situ will be used to analyze the contributions of each site under reaction conditions. (AU)

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