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Advanced synthesis methodologies of hierarchical zeolites and characterization by different techniques for improved use of microporous materials in heterogeneous catalysis

Grant number: 13/01328-0
Support type:Regular Research Grants
Duration: September 01, 2014 - August 31, 2016
Field of knowledge:Engineering - Chemical Engineering
Principal Investigator:Leandro Martins
Grantee:Leandro Martins
Home Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
Assoc. researchers:Celso Valentim Santilli ; Sandra Helena Pulcinelli

Abstract

The well-established field of zeolites, and microporous solids of the same family, has been revitalized in recent years by a wave of research targeting improved accessibility and transport of molecules in these microporous materials. Despite being dressed with a truly unique combination of properties, zeolite catalysts appear under-utilized in many industrial reactions due to diffusion constraints. The Research Group on Catalysis (RGCat) of Univ Estadual Paulista - UNESP nucleated after the approval of FAPESP budget for the period between 2010-2014. The main target of RGCat is the investigation of heterogeneous catalysts for the conversion of renewable feedstocks like glycerol and ethanol. In the year of 2012 the RGCat went forward and started the study on synthesis methodologies for improved use of microporous materials in heterogeneous catalysis. Despite the early stage of this research topic, the GPCat is aware that in the near horizon an increasing number of hierarchical zeolites will be implemented in industry for specific processes. By now, a representative number of laboratory studies all over the world have shown improved activity, selectivity, and/or lifetime on hierarchical zeolites compared to conventional (purely microporous) zeolites. This project is expected to promote integration of new concepts in integrative synthesis of zeolitic catalysts by the use of supramolecular chemistry and to strengthen the capacities of highly-qualified academic staff. (AU)

Scientific publications (6)
(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)
PETROLINI, DAVI D.; CASSINELLI, WELLINGTON H.; PEREIRA, CRISTIANE A.; URQUIETA-GONZALEZ, ERNESTO A.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Ethanol dehydrogenative reactions catalyzed by copper supported on porous Al-Mg mixed oxides. RSC ADVANCES, v. 9, n. 6, p. 3294-3302, JAN 24 2019. Web of Science Citations: 0.
RODRIGUES, MARIANA V.; VIEIRA, LUIZ H.; CAMPOS, GUILHERME P.; MARTINS, LEANDRO. Effect of different seed sources on the hydrothermal crystallization of MCM-22 zeolite catalysts. CrystEngComm, v. 20, n. 25, p. 3467-3475, JUL 7 2018. Web of Science Citations: 1.
PETROLINI, DAVI D.; DA SILVA NETO, ALANO V.; URQUIETA-GONZALEZ, ERNESTO A.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Catalytic performance of texturally improved Al-Mg mixed oxides derived from emulsion-synthesized hydrotalcites. RSC ADVANCES, v. 8, n. 11, p. 6039-6046, 2018. Web of Science Citations: 2.
PETROLINI, DAVI D.; URQUIETA-GONZALEZ, ERNESTO A.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Emulsion-mediated synthesis of hierarchical mesoporousmacroporous Al-Mg hydrotalcites. Microporous and Mesoporous Materials, v. 240, p. 149-158, MAR 1 2017. Web of Science Citations: 6.
VIEIRA, LUIZ H.; CARVALHO, KELE T. G.; URQUIETA-GONZALEZ, ERNESTO A.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Effects of crystal size, acidity, and synthesis procedure on the catalytic performance of gallium and aluminum MFI zeolites in glycerol dehydration. JOURNAL OF MOLECULAR CATALYSIS A-CHEMICAL, v. 422, n. SI, p. 148-157, OCT 2016. Web of Science Citations: 18.
RODRIGUES, MARIANA V.; VIGNATTI, CHARITO; GARETTO, TERESITA; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Glycerol dehydration catalyzed by MWW zeolites and the changes in the catalyst deactivation caused by porosity modification. APPLIED CATALYSIS A-GENERAL, v. 495, p. 84-91, APR 5 2015. Web of Science Citations: 24.

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