Synthesis and characterization of hybrid nanoparticles for electrochemical devices

• Grant number: 13/00322-8
• Support Opportunities: Scholarships in Brazil - Doctorate (Direct)
• Effective date (Start): April 01, 2013
• Effective date (End): February 28, 2018
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Susana Inés Córdoba de Torresi
• Grantee: Marco Antonio de Oliveira Santos Minadeo
• Host Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
• Associated research grant: 09/53199-3 - Molecular recognition and energy storage: fundamental studies concerning geometry, size and synthesis effects on the optimization of the chemical properties of electroactive materials, AP.TEM

Abstract

Metal nanoparticles and nanoparticles of metal oxides have been widely used in many areas of chemistry, such as electroanalysis, catalysis, biosensors, controlled drug release, decomposition of organic pollutants, among others. Conducting polymers, also called "synthetic metals", have in their structure inherent characteristics, which make their optical and electronic properties being different from those of other polymers, such as conjugated double bonds in its carbon chain. The delocalization of the pi bonds and the introduction of charges causes the polymer to be conductive and gives it properties such as low band gap semiconductor and electronic transitions of low energy. The oxidation or reduction of these polymers can greatly affect its properties by introducing electric charges in the polymer backbone, the process is known as doping of the polymer. The interaction of polymers with inorganic nanoparticles can confer new optical, electronic and catalytic properties for the nanoparticles. The objective of the project is the synthesis and characterization of hybrid core-shell nanoparticles with cores of noble metals (Au, Pt, Ag) or oxides (NiO, magnetite) with electronic conductive polymers to combine their optical and electrocatalytic properties for the use of nanoparticles in electrochemical devices such as electrochemical sensors, electrochromic and biomedical devices. (AU)

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)

DA SILVA, ARUA C.; MINADEO, MARCO A. O. S.; DE TORRESI, SUSANA I. C.. Gold Nanoparticles and [PEDOT-Poly(D,L-Lactic Acid)] Composite: Synthesis, Characterization and Application to H2O2 Sensing. Journal of the Brazilian Chemical Society, v. 30, n. 10, SI, p. 2066-2075, OCT 2019. (15/26308-7, 13/00322-8, 14/09353-6)

WOLFART, FRANCIELE; HRYNIEWICZ, BRUNA M.; GOES, MARCIO S.; CORREA, CINTIA M.; TORRESI, ROBERTO; MINADEO, MARCO A. O. S.; CORDOBA DE TORRESI, SUSANA I.; OLIVEIRA, RAFAELA D.; MARCHESI, LUIS F.; VIDOTTI, MARCIO. Conducting polymers revisited: applications in energy, electrochromism and molecular recognition. Journal of Solid State Electrochemistry, v. 21, n. 9, SI, p. 2489-2515, SEP 2017. (13/00322-8, 15/26308-7)

Academic Publications

(References retrieved automatically from State of São Paulo Research Institutions)

MINADEO, Marco Antonio de Oliveira Santos. Synthesis and characterization of hybrid materials containing gold or platinum nanoparticles and poly(3,4-ethylenedioxythiophenes) for electrochemistry. 2018. Doctoral Thesis - Universidade de São Paulo (USP). Conjunto das Químicas (IQ e FCF) (CQ/DBDCQ) São Paulo.