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Comparative study of the use of CO2 as a reagent

Grant number: 08/10177-7
Support Opportunities:Scholarships in Brazil - Doctorate (Direct)
Effective date (Start): March 01, 2009
Effective date (End): February 28, 2013
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal Investigator:Henrique Eisi Toma
Grantee:Caterina Gruenwaldt Cunha Marques Netto
Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:04/10235-6 - Designing new supermolecules, films and devices in molecular nanotechnology, AP.TEM


To comprehend nature it is necessary to use the same methods it uses, so the desing of an efficient catalyst should take in account the properties of the reagents and its interaction with the catalyst, as it works in the reactions of carbonates, urea and polymers formation, inspiring on the biochemical complexes that exists in reductive enzymes for CO2. The biofixation of CO2 utulizing the whole cells or enzymes have gain a lot of attention since it has high conversions and selectivities in low temperatures and pressures without pollution and by its potentiality of use in industry. To a better disponibility of enzymes in the industry field, the immobilization on the surface of magnetic nanoparticles is claimed. The immobilization of such expensive catalysts have advantages such as the high mass transference, high superficial area and the simple use of a magnet to recover it.In this work we will keep on studying the work supported by FAPESP, immobilizing alcohol dehydrogenases to bioconvert CO2 into methanol and formaldehyde in colaboration with Prof. Dr. Leandro Andrade from IQ-USP. This bioconversion will be compared in terms of viability on the utilization of CO2 as a reagent with the chemical conversion, utilizing a binuclear complex desingned in collaboration with Prof. Dr. Benjamin List from Max-Planck Institut. This complex is inspired on the complex of Rubisco enzyme, the co-enzyme F430, the Koch reaction and on the caboxylation reactions with noble metals such as Pd and Rh. (AU)

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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)
MARQUES NETTO, CATERINA G. C.; ANDRADE, LEANDRO H.; TOMA, HENRIQUE E.. Carbon dioxide/methanol conversion cycle based on cascade enzymatic reactions supported on superparamagnetic nanoparticles. Anais da Academia Brasileira de Ciências, v. 90, n. 1, 1, p. 593-606, . (13/24725-4, 08/10177-7)
NETTO, CATERINA G. C. MARQUES; DA SILVA, DELMARCIO G.; TOMA, SERGIO H.; ANDRADE, LEANDRO H.; NAKAMURA, MARCELO; ARAKI, KOITI; TOMA, HENRIQUE E.. Bovine glutamate dehydrogenase immobilization on magnetic nanoparticles: conformational changes and catalysis. RSC ADVANCES, v. 6, n. 16, p. 12977-12992, . (08/10177-7)
Academic Publications
(References retrieved automatically from State of São Paulo Research Institutions)
NETTO, Caterina Gruenwaldt Cunha Marques. Development of catalysts and enzymatic systems for CO2 redution. 2013. Doctoral Thesis - Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) São Paulo.

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