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Synthesis and characterization of hybrid nanoparticles for electrochemical devices

Grant number: 13/00322-8
Support type: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 researcher:Susana Inés Córdoba de Torresi
Grantee:Marco Antonio de Oliveira Santos Minadeo
Home 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


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)

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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. Web of Science Citations: 0.
ARUÃ C. DA SILVA; MARCO A. O. S. MINADEO; SUSANA I. C. DE TORRESI. 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, p. 2066-2075, Out. 2019.
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. Web of Science Citations: 22.

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