Mesoporous ceramics and multifunctional organic-inorganic hybrids prepared by sol-gel process

• Grant number: 07/53073-4
• Support Opportunities: Research Projects - Thematic Grants
• Start date: November 01, 2007
• End date: October 31, 2013
• Field of knowledge: Engineering - Materials and Metallurgical Engineering - Nonmetallic Materials
• Principal Investigator: Celso Valentim Santilli
• Grantee: Celso Valentim Santilli
• Host Institution: Instituto de Química (IQ). Universidade Estadual Paulista (UNESP). Campus de Araraquara. Araraquara , SP, Brazil
• Pesquisadores principais: Aldo Felix Craievich ; Marcia Carvalho de Abreu Fantini ; Sandra Helena Pulcinelli ; Sidney José Lima Ribeiro
• Associated research grant(s): 12/07214-3 - E-MRS 2012 Spring Meeting, AR.EXT
• Associated scholarship(s): 13/04314-0 - Development of siloxane-PMMA coatings reinforced by carbon nanotubes and graphene for anticorrosive applications, BP.MS; 12/10215-1 - Correlation between macro/mesoporous structure, surface properties and catalytic activity for sulfated zirconia foams, BP.PD; 11/12087-8 - Monitoring of UV filters uptake/release from polyether-ureasil hybrid materials, BP.PD; + associated scholarships 11/11550-6 - Functionalization of carbon nanotubes grown in hierarchical porous materials for preparation of useful catalysts in transesterification reaction, BP.PD; 11/08673-9 - Macro-mesoporous alumina produced by sol-gel method for application in heterogeneous catalysis, BP.DR; 10/10177-7 - Preparation and characterization of doped silica-polymer films for corrosion protection of metallic surfaces, BP.IC; 09/16413-7 - Synthesis and characterization of hybrid materials with polythiophenes derivatives for sensor applications, BP.PD; 10/00135-5 - Sistematical study of the thermoreversible sol-gel transition of TiO2 coloidal suspensions modified by para-toluene sulfonic acid for building ordered mesoporous materials, BP.PD; 09/16975-5 - Study of the corrosion resistance of siloxane-PMMA hybrids coatings applied on AA7050 alloy, BP.PD; 09/10426-0 - Hierarchically ordered porous materials for application in catalysis, BP.IC; 08/09029-3 - Hierarchically ordered porous materials for application in catalysis, BP.PD; 08/05475-9 - Multifunctional hybrid nanocomposites, BP.DD; 07/08559-6 - Cubic ordered mesoporous silica from sodium silicate, BP.IC - associated scholarships

Abstract

This thematic research project involves a team of five principal researchers and five collaborating researchers with their postgraduate and scientific initiation students, in addition to researchers working for post-doctorates. The project's main objective is to guarantee the continuity of studies we have been developing for over more than ten years on the preparation of ceramic or hybrid nanomaterials using the sol-gel process. The central theme of the project involves the study of mesoporous ceramics with periodical arrangement of pores and organic-inorganic hybrids with different functions, namely: devices for controlled release of pharma-chemicals, transparent solid ionic conductors, anti-corrosion barriers, adsorbents of heavy metals, catalyst supports, diffraction gratings, narrow band laser, contrast agents and markers for clinical diagnosis. All these systems present as a common aspect the nanometric characteristics of the phases responsible for the specific properties of the proposed applications. We intend to prepare organic hybrids siloxane-polymer (poly (ethylene oxide), PEO, poly (propylene oxide), PPO, poly (methacrylates) and poly (glycides)) covalently bonded and evaluate the effect of the conditions of preparation on the nano-structural characteristics and on the functional properties. In the case of ceramic systems we should evaluate the viability of controlling the size of the pores and the type of periodic arrangement based on the use of "liquid crystals” formed by the auto-association of amphiphilic molecules of tensoactives present in the reactional medium. It still remains to establish the conditions of preparation of emulsions composed of the mixture water/oil/tensoactive/co-tensoactive capable of functioning as nano or micro-reactor and confine both the growth of particles and the growth of pores. (AU)

Scientific publications

(14)

(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)

PASSOS, ALINE RIBEIRO; PULCINELLI, SANDRA HELENA; SANTILLI, CELSO VALENTIM; BRIOIS, VALERIE. Operando monitoring of metal sites and coke evolution during non-oxidative and oxidative ethanol steam reforming over Ni and NiCu ex-hydrotalcite catalysts. CATALYSIS TODAY, v. 336, n. SI, p. 122-130, OCT 1 2019. (10/01449-3, 07/53073-4, 11/08673-9)

CASSINELLI, WELLINGTON H.; MARTINS, LEANDRO; MAGNANI, MARINA; PULCINELLI, SANDRA H.; BRIOIS, VALERIE; SANTILLI, CELSO V.. Time-resolved XAS/MS/Raman monitoring of mutual copper self-reduction and ethanol dehydrogenation reactions. RSC ADVANCES, v. 6, n. 25, p. 20453-20457, 2016. (07/53073-4, 10/01449-3, 13/05346-2)

PASSOS, A. R.; PULCINELLI, S. H.; BRIOIS, V.; SANTILLI, C. V.. High surface area hierarchical porous Al2O3 prepared by the integration of sol-gel transition and phase separation. RSC ADVANCES, v. 6, n. 62, p. S7217-S7226, 2016. (07/53073-4, 11/08673-9)

PASSOS, ALINE RIBEIRO; LA FONTAINE, CAMILLE; MARTINS, LEANDRO; PULCINELLI, SANDRA HELENA; SANTILLI, CELSO VALENTIM; BRIOIS, VALERIE. Operando XAS/Raman/MS monitoring of ethanol steam reforming reaction-regeneration cycles. CATALYSIS SCIENCE & TECHNOLOGY, v. 8, n. 24, p. 6297-6301, DEC 21 2018. (07/53073-4, 11/08673-9, 10/01449-3)

CASSINELLI, WELLINGTON H.; MARTINS, LEANDRO; PASSOS, ALINE R.; PULCINELLI, SANDRA H.; ROCHET, AMELIE; BRIOIS, VALERIE; SANTILLI, CELSO V.. Correlation between Structural and Catalytic Properties of Copper Supported on Porous Alumina for the Ethanol Dehydrogenation Reaction. CHEMCATCHEM, v. 7, n. 11, p. 1668-1677, JUN 1 2015. (07/53073-4, 10/01449-3, 13/05346-2)

ALVES-ROSA, MARINALVA A.; MARTINS, LEANDRO; HAMMER, PETER; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.. Structure and catalytic properties of sulfated zirconia foams. Journal of Sol-Gel Science and Technology, v. 72, n. 2, p. 8-pg., 2014-11-01. (07/53073-4, 10/01449-3, 12/10215-1)

PASSOS, ALINE RIBEIRO; PULCINELLI, SANDRA HELENA; SANTILLI, CELSO VALENTIM; BRIOIS, VALERIE. Operando monitoring of metal sites and coke evolution during non-oxidative and oxidative ethanol steam reforming over Ni and NiCu ex-hydrotalcite catalysts. CATALYSIS TODAY, v. 336, p. 9-pg., 2019-10-01. (07/53073-4, 11/08673-9, 10/01449-3)

ALVES-ROSA, MARINALVA A.; MARTINS, LEANDRO; HAMMER, PETER; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.. Structure and catalytic properties of sulfated zirconia foams. Journal of Sol-Gel Science and Technology, v. 72, n. 2, SI, p. 252-259, NOV 2014. (07/53073-4, 12/10215-1, 10/01449-3)

PASSOS, ALINE R.; PULCINELLI, SANDRA H.; SANTILLI, V, CELSO. Relevance of sol-gel transition and spinodal decomposition for hierarchical porosity structure of monolithic alumina. Journal of Sol-Gel Science and Technology, SEP 2021. (11/08673-9, 07/53073-4)

PASSOS, ALINE R.; MARTINS, LEANDRO; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; BRIOIS, VALERIE. Correlation of Sol-Gel Alumina-Supported Cobalt Catalyst Processing to Cobalt Speciation, Ethanol Steam Reforming Activity, and Stability. CHEMCATCHEM, v. 9, n. 20, p. 3918-3929, OCT 23 2017. (07/53073-4, 11/08673-9, 10/01449-3)

CASSINELLI, WELLINGTON H.; MARTINS, LEANDRO; PASSOS, ALINE R.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; ROCHET, AMELIE; BRIOIS, VALERIE. Multivariate curve resolution analysis applied to time-resolved synchrotron X-ray Absorption Spectroscopy monitoring of the activation of copper alumina catalyst. CATALYSIS TODAY, v. 229, p. 114-122, JUN 15 2014. (07/53073-4, 13/05346-2)

SUEGAMA, P. H.; SARMENTO, V. H. V.; MONTEMOR, M. F.; BENEDETTI, A. V.; DE MELO, H. G.; AOKI, I. V.; SANTILLI, C. V.. Effect of cerium (IV) ions on the anticorrosion properties of siloxane-poly(methyl methacrylate) based film applied on tin coated steel. Electrochimica Acta, v. 55, n. 18, p. 5100-5109, JUL 15 2010. (07/53073-4)

PETROLINI, DAVI D.; PULCINELLI, SANDRA H.; SANTILLI, CELSO V.; MARTINS, LEANDRO. Textured macro- and mesoporous alumina samples designed in the presence of different surfactant types. Journal of Sol-Gel Science and Technology, v. 71, n. 1, p. 9-15, JUL 2014. (07/53073-4, 10/01449-3)

SAKAI, R. T.; DA CRUZ, F. M. DI L.; DE MELO, H. G.; BENEDETTI, A. V.; SANTILLI, C. V.; SUEGAMA, P. H.. Electrochemical study of TEOS, TEOS/MPTS, MPTS/MMA and TEOS/MPTS/MMA films on tin coated steel in 3.5% NaCl solution. Progress in Organic Coatings, v. 74, n. 2, SI, p. 288-301, JUN 2012. (07/53073-4)