Bimetallic anisotropic nanoparticles (Au/Pd) for the study of catalytic processes through surface enhanced Raman scattering

• Grant number: 19/21939-0
• Support Opportunities: Scholarships in Brazil - Post-Doctoral
• Start date: December 01, 2019
• End date: November 30, 2021
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Paola Corio
• Grantee: Dieric dos Santos de Abreu
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 16/21070-5 - Vibrational spectroscopy with spatial resolution, AP.TEM

Abstract

The focus of this project lies in the systematic study of the synthesis procedures of nanomaterials formed by Au/Pd anisotropic metal nanoparticles (thus combining the plasmonic properties of Au to the catalytic properties of Pd) immobilized on different supports targeting specific applications such as catalytic and SERS-active materials. Different routes will be evaluated for the chemical functionalization of the substrates (carbon nanomaterials, silica or titania) for the covalent and/or electrostatic bonding of the different metal nanostructures, aiming at the formation stable and functional of hybrid nanostructures. The composites will be characterized by techniques of vibrational spectroscopy (Raman and infrared) and transmission and scanning electron microscopy techniques, and their performance in catalytic and photocatalytic processes will be evaluated. Among the reactions to be investigated, we emphasize the process of CO2 photoreduction. (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)

BEZERRA, LUCAS F.; REIS, MONILSON P.; ROMO, ADOLFO I. B.; ABREU, DIERIC S.; GEHLEN, MARCELO H.; LONGHINOTTI, ELISANE; PAULO, TERCIO F.; CARVALHO, IDALINA M. M.; DIOGENES, IZAURA C. N.. hotophysical properties of push-pi-pull type chromophores of aryl-substituted bipyridines in different solvent. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY, v. 425, MAR 1 2022. (19/21939-0)

LOPES, DOUGLAS DOS SANTOS; ABREU, DIERIC DOS SANTOS; ANDO, ROMULO AUGUSTO; CORIO, PAOLA. Regioselective Plasmon-Driven Decarboxylation of Mercaptobenzoic Acids Triggered by Distinct Reactive Oxygen Species. ACS CATALYSIS, v. 12, n. 23, p. 10-pg., 2022-11-15. (19/21939-0, 16/21070-5, 19/03371-6)

RODRIGUEZ-HERNANDEZ, JUAN S. S.; GOMEZ, MAYRA A. P. A.; ABREU, D. S.; NONATO, ARIEL; DA SILVA, ROSIVALDO XAVIER; GARCIA-FERNANDEZ, ALBERTO; SENARIS-RODRIGUEZ, MARIA A.; SANCHEZ-ANDUJAR, MANUEL; AYALA, A. P.; PASCHOAL, C. W. A.. Uniaxial negative thermal expansion in the [(CH3)(2)NH2]PbBr3 hybrid perovskite. JOURNAL OF MATERIALS CHEMISTRY C, v. 10, n. 46, p. 10-pg., 2022-10-17. (19/21939-0)

DE FRANCA LOPES, LUIZ GONZAGA; GOUVEIA JUNIOR, FLORENCIO S.; MEDEIROS HOLANDA, ALDA KARINE; MOREIRA DE CARVALHO, IDALINA MARIA; LONGHINOTTI, ELISANE; PAULO, TERCIO F.; ABREU, DIERIC S.; BERNHARDT, V, PAUL; GILLES-GONZALEZ, MARIE-ALDA; NOGUEIRA DIOGENES, IZAURA CIRINO; et al. Bioinorganic systems responsive to the diatomic gases O-2, NO, and CO: From biological sensors to therapy. Coordination Chemistry Reviews, v. 445, OCT 15 2021. (19/21939-0)

VASCONCELOS, NAILSON; ARAUJO, BRUNO S.; ABREU, DIERIC S.; GOMEZ, MAYRA A. P.; AYALA, ALEJANDRO P.; PASCHOAL, CARLOS WILLIAM A.. Exciton-phonon coupling in alanine-based hybrid lead bromide. MATERIALS ADVANCES, v. 3, n. 23, p. 11-pg., 2022-09-16. (19/21939-0)

ABREU, MARIA K. S. O.; SILVA, MARIA A. S.; ABREU, DIERIC S.; RICHTER, ANA R.; DE PAULA, REGINA C. M.; CONSTANTINO, VERA R. L.; VASCONCELOS, IGOR F.; DE OLIVEIRA, FRANCISCO G. S.; DE MELO, ACACIO S.; CORREA, MARCIO A.; et al. Colloidal stability improvement of cobalt ferrite encapsulated in carboxymethylated cashew gum. COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, v. 656, p. 8-pg., 2023-01-05. (19/21939-0)