Self-assembly electroactive materials

• Grant number: 05/00106-7
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2005
• End date: October 31, 2007
• Field of knowledge: Physical Sciences and Mathematics - Chemistry - Physical-Chemistry
• Principal Investigator: Fritz Cavalcante Huguenin
• Grantee: Fritz Cavalcante Huguenin
• Host Institution: Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

In this work, the preparation, characterization and optimization of electrical, electrochemical, structural, catalytic and optical properties of self-assembly nanocomposites made from electroactive materials will be investigated. Polymeric structure formed from transition metal oxides, conducting polymers and metallic nanoparticles will be controlled through layer-by-layer (LBL) method. They will be studied by electrochemical, spectroscopic and microscopic techniques and x-ray diffraction. The effects obtained of particle size and distribution, charge transportation, electronic transfer, morphology and interactions among the several interface of particulate materials, aiming a better understanding of processes involved in novel modified electrodes with suitable properties for the use in lithium microbatteries, electrochromic devices and microfuel cells. (AU)

Scientific publications

(4)

(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)

PARREIRA, RENATO L. T.; CARAMORI, GIOVANNI F.; GALEMBECK, SERGIO E.; HUGUENIN, FRITZ. The Nature of the Interactions between Pt-4 Cluster and the Adsorbates H-center dot, (OH)-O-center dot, and H2O. Journal of Physical Chemistry A, v. 112, n. 46, p. 11731-11743, NOV 20 2008. (07/04379-3, 05/00106-7)

REZENDE, ALEX R.; BIZETO, MARCOS A.; CONSTANTINO, VERA R. L.; HUGUENIN, FRITZ. Lithium Ion Electro-Insertion and Spectroelectrochemical Properties of Films from Hexaniobate. Journal of Physical Chemistry C, v. 113, n. 25, p. 10868-10876, JUN 25 2009. (05/60596-8, 05/00106-7)

FACCI, TIAGO; PARREIRA, RENATO L. T.; PEREIRA-DA-SILVA, MARCELO A.; OLIVEIRA, JR., OSVALDO N.; HUGUENIN, FRITZ. Pt/TiO2/poly(vinyl sulfonic acid) Layer-by-Layer Films for Methanol Electrocatalytic Oxidation. Journal of Nanoscience and Nanotechnology, v. 9, n. 11, p. 6620-6626, NOV 2009. (05/00106-7)

BARRETTO, CAROLINE B.; PARREIRA, RENATO L. T.; GONCALVES, ROGRIA R.; DE AZEVEDO, DAYSE C.; HUGUENIN, FRITZ. Platinum nanoparticles embledded in layer-by-layer films from SnO2/polyallylamine for ethanol electrooxidation. Journal of Power Sources, v. 185, n. 1, p. 6-12, OCT 15 2008. (05/00106-7)