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Study of the influence of organic ligands on the reactivity of gold nanoparticles

Grant number: 16/16738-7
Support type:Regular Research Grants
Duration: November 01, 2016 - October 31, 2018
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Inorganic Chemistry
Principal researcher:Liane Marcia Rossi
Grantee:Liane Marcia Rossi
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil


Metal nanoparticles have received great attention in catalysis due to new reactivity, often not seen in the corresponding bulk materials, and high selectivity in catalytic reactions. In general, gold catalysts have been most studied for its excellent selectivity in oxidation reactions, but this metal at nanoscale has unique properties that can be exploited in a number of other reactions. The preparation of metallic nanoparticles generally involves three basic components: a metal precursor, a reducing agent and a stabilizer. The stabilizer is generally an organic molecule, which has the function of stopping the growth process of the nanoparticles, allowing the size control, but it adsorbs on the surface of the material. The interaction of the stabilizer with the metal nanoparticle certainly plays a very important role for applications in catalysis, as well as other processes involving ligands that can activate or poison the metal surfaces. Ligands are known as selectivity enhancers in classical heterogeneous catalysis (blocking non-selective sites), but rarely used as promoters to increase activity. Very little has been studied to date on the role of organic ligands used in the preparation of gold nanoparticles for applications in catalysis, and even less about possible effects of adding organic promoters. In this research project, we will study the catalytic activity of supported gold nanoparticles and the activation and deactivation processes involving adsorbed ligands on their surfaces. We hope that these ligands can stimulate new reactivity and selectivity in industrially interesting reactions, such as catalytic hydrogenations. (AU)

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Scientific publications (13)
(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)
SILVA, RERISON J. M.; FIORIO, JHONATAN L.; VIDINHA, PEDRO; ROSSI, LIANE M.. Gold Catalysis for Selective Hydrogenation of Aldehydes and Valorization of Bio-Based Chemical Building Blocks. Journal of the Brazilian Chemical Society, v. 30, n. 10, SI, p. 2162-2169, . (16/16738-7)
VONO, LUCAS L. R.; BROICHER, CORNELIA; PHILIPPOT, KARINE; ROSSI, LIANE M.. Tuning the selectivity of phenol hydrogenation using Pd, Rh and Ru nanoparticles supported on ceria- and titania-modified silicas. CATALYSIS TODAY, v. 381, p. 126-132, . (18/26253-6, 10/11102-0, 16/16738-7)
BARBOSA, EDUARDO C. M.; FIORIO, JHONATAN L.; MOU, TONG; WANG, BIN; ROSSI, LIANE M.; CAMARGO, PEDRO H. C.. Reaction Pathway Dependence in Plasmonic Catalysis: Hydrogenation as a Model Molecular Transformation. CHEMISTRY-A EUROPEAN JOURNAL, v. 24, n. 47, SI, p. 12330-12339, . (15/21366-9, 16/16738-7, 15/26308-7, 15/11452-5)
FIORIO, JHONATAN LUIZ; GONCALVES, RENATO VITALINO; TEIXEIRA-NETO, ERICO; ORTUNO, MANUEL A.; LOPEZ, NURIA; ROSSI, LIANE MARCIA. Accessing Frustrated Lewis Pair Chemistry through Robust Gold@N-Doped Carbon for Selective Hydrogenation of Alkynes. ACS CATALYSIS, v. 8, n. 4, p. 3516-3524, . (16/16738-7)
DA SILVA, FERNANDA P.; FIORIO, JHONATAN L.; GONCALVES, V, RENATO; TEIXEIRA-NETO, ERICO; ROSSI, LIANE M.. Synergic Effect of Copper and Palladium for Selective Hydrogenation of Alkynes. Industrial & Engineering Chemistry Research, v. 57, n. 48, p. 16209-16216, . (16/16738-7)
FIORIO, JHONATAN L.; BARBOSA, EDUARDO C. M.; KIKUCHI, DANIELLE K.; CAMARGO, PEDRO H. C.; RUDOLPH, MATTHIAS; HASHMI, A. STEPHEN K.; ROSSI, LIANE M.. Piperazine-promoted gold-catalyzed hydrogenation: the influence of capping ligands. CATALYSIS SCIENCE & TECHNOLOGY, v. 10, n. 7, p. 1996-2003, . (15/21366-9, 16/16738-7, 15/26308-7, 15/11452-5)
RODRIGUES, FABIO M. S.; DIAS, LUCAS D.; CALVETE, MARIO J. F.; MARIA, TERESA M. R.; ROSSI, LIANE M.; POMBEIRO, ARMANDO J. L.; MARTINS, LUISA M. D. R. S.; PEREIRA, MARIETTE M.. Immobilization of Rh(I)-N-Xantphos and Fe(II)-C-Scorpionate onto Magnetic Nanoparticles: Reusable Catalytic System for Sequential Hydroformylation/Acetalization. CATALYSTS, v. 11, n. 5, . (16/16738-7, 19/13569-8)
FIORIO, JHONATAN L.; ROSSI, LIANE M.. Clean protocol for deoxygenation of epoxides to alkenes via catalytic hydrogenation using gold. CATALYSIS SCIENCE & TECHNOLOGY, v. 11, n. 1, p. 312-318, . (16/16738-7, 18/26253-6)
FIORIO, JHONATAN L.; ARAUJO, THAYLAN P.; BARBOSA, EDUARDO C. M.; QUIROZ, JHON; CAMARGO, PEDRO H. C.; RUDOLPH, MATTHIAS; HASHMI, A. STEPHEN K.; ROSSI, LIANE M.. Gold-amine cooperative catalysis for reductions and reductive aminations using formic acid as hydrogen source. APPLIED CATALYSIS B-ENVIRONMENTAL, v. 267, . (15/11452-5, 15/21366-9, 15/26308-7, 16/17866-9, 17/07564-8, 16/16738-7)
QUIROZ, JHON; BARBOSA, EDUARDO C. M.; ARAUJO, THAYLAN P.; FIORIO, JHONATAN L.; WANG, YI-CHI; ZOU, YI-CHAO; MOU, TONG; ALVES, TIAGO V.; DE OLIVEIRA, DANIELA C.; WANG, BIN; et al. Controlling Reaction Selectivity over Hybrid Plasmonic Nanocatalysts. Nano Letters, v. 18, n. 11, p. 7289-7297, . (15/21366-9, 15/26308-7, 15/11452-5, 17/07564-8, 16/17866-9, 16/16738-7)
DA SILVA, FERNANDA PARRA; FIORIO, JHONATAN LUIZ; ROSSI, LIANE MARCIA. Tuning the Catalytic Activity and Selectivity of Pd Nanoparticles Using Ligand-Modified Supports and Surfaces. ACS OMEGA, v. 2, n. 9, p. 6014-6022, . (16/16738-7)
FIORIO, JHONATAN LUIZ; BRAGA, ADRIANO HENRIQUE; BARBOSA GUEDES, CARMEN LUISA; ROSSI, LIANE MARCIA. Reusable Heterogeneous Tungstophosphoric Acid-Derived Catalyst for Green Esterification of Carboxylic Acids. ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v. 7, n. 19, p. 15874-15883, . (16/16738-7)
FERRAZ, CAMILA P.; NAVARRO-JAEN, SARA; ROSSI, LIANE M.; DUMEIGNIL, FRANCK; GHAZZAL, MOHAMED N.; WOJCIESZAK, ROBERT. Enhancing the activity of gold supported catalysts by oxide coating: towards efficient oxidations. GREEN CHEMISTRY, v. 23, n. 21, . (16/16738-7, 18/26253-6)

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Filed patent(s) as a result of this research project

Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação BR1020180049020 - Universidade de São Paulo (USP) . Solicitação em análise e dentro do prazo legal de sigilo previsto na legislação - March 2018, 12