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Center for Excellence in Electrochemically Synthesized Nanostructures


The main purpose of the Center for Excellence in Electrochemically Synthesized Nanostructures (ESNAS) is the use of electrochemical techniques to produce electronic, magnetic and optical materials. Due to the innumerable possibilities available for manufacturing materiaIs using electrochemical procedures, which include control on the nanometric scale, almost every type of material, including metal films, metallic alloys, superlattices, semiconductors and insulators can be prepared and used for manufacturing devices. These materiaIs can be either organic or inorganic and can range from highly crystalline to amorphous. This project presents a multidisciplinary proposal for the study of nanostructured materials, which will involve every phase of scientific development. The main objectives will be as follows: 1-) electrodeposit metals, metallic multilayers and alloys to study their structural, electrochemical and magnetic characteristics. The systems investigated will be used to build magnetic devices and to serve as electrocatalysts. 2-) prepare anodic oxide films with luminescent and electroluminescent properties using the anodic doping processo Prepare metal and alloy nanowires in anodic oxide templates to study their magnetic properties. Investigate the mechanisms of dielectric breakdown and anodic doping. 3-) based on electrochemical and chemical techniques, synthesize pure polymers, blends and composites of nanostructured conducting polymers for application in electronic and optical recording devices. Characterize the electrochemical, electric, magnetic, and optical properties of these materials. 4-) finally, we propose to create an Internet website for the dissemination of scientific and technological knowledge, using language accessible to the general public, with special attention focusing on elementary and secondary students. (AU)

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Scientific publications (20)
(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)
FREITAS, R. G.; ANTUNES, E. P.; CHRISTENSEN, P. A.; PEREIRA, E. C. The influence of Ir and Pt1Ir1 structure in metallic multilayers nanoarchitectured electrodes towards ethylene glycol electro-oxidation. Journal of Power Sources, v. 214, p. 351-357, SEP 15 2012. Web of Science Citations: 6.
FREITAS, RENATO G.; PEREIRA, ERNESTO C.; CHRISTENSEN, PAUL A. The selective oxidation of ethanol to CO2 at Pt-pc/Ir/Pt metallic multilayer nanostructured electrodes. Electrochemistry Communications, v. 13, n. 10, p. 1147-1150, OCT 2011. Web of Science Citations: 15.
FREITAS, R. G.; MARCHESI, L. F. Q. P.; FORIM, M. R.; BULHOES, L. O. S.; PEREIRA, E. C.; SANTOS, M. C.; OLIVEIRA, R. T. S. Ethanol Electrooxidation using Ti/(RuO2)((x)) Pt(1-x) Electrodes Prepared by the Polymeric Precursor Method. Journal of the Brazilian Chemical Society, v. 22, n. 9, p. 1709-1717, SEP 2011. Web of Science Citations: 10.
FREITAS, RENATO GARCIA; BATISTA, EVELINE CRISTINE; CASTRO, MARCELA PORTES; OLIVEIRA, ROBSON T. S.; SANTOS, MAURO COELHO; PEREIRA, ERNESTO CHAVES. Ethanol Electrooxidation on Bi Submonolayers Deposited on a Pt Electrode. ELECTROCATALYSIS, v. 2, n. 3, p. 224-230, SEP 2011. Web of Science Citations: 4.
R. G FREITAS; L. F. Q. P MARCHESI; M. R FORIM; L. O. S BULHÕES; E. C PEREIRA; M. C SANTOS; R. T. S OLIVEIRA. Ethanol electrooxidation using Ti/(RuO2)(x) Pt(1-x) electrodes prepared by the polymeric precursor method. Journal of the Brazilian Chemical Society, v. 22, n. 9, p. -, Set. 2011.
CRISTOVAN, FERNANDO H.; LEMOS, SHERLAN G.; SANTOS, JANAINA S.; TRIVINHO-STRIXINO, FRANCISCO; PEREIRA, ERNESTO C.; MATTOSO, LUIZ H. C.; KULKARNI, RASHMI; MANOHAR, SANJEEV K. Evaluation of the aniline chemical oxidation process using multiple simultaneous electrochemical responses. Electrochimica Acta, v. 55, n. 12, p. 3974-3978, APR 30 2010. Web of Science Citations: 4.
CRISTOVAN, FERNANDO H.; LEMOS, SHERLAN G.; PEREIRA, ERNESTO C. Systematic Evaluation of the Preparation of Conducting PANI/ABS Blends. Journal of Applied Polymer Science, v. 116, n. 2, p. 825-831, APR 15 2010. Web of Science Citations: 8.
OLIVEIRA, C. P.; CARDOSO, M. L.; OLIVEIRA, A. J. A.; PEREIRA, E. C. Electrochemical Preparation of Overlapped Porous Layers on Anodic Alumina. Journal of Nanoscience and Nanotechnology, v. 9, n. 11, p. 6487-6493, NOV 2009. Web of Science Citations: 4.
SIKORA, M. S.; TRIVINHO-STRIXINO, F.; BELLO, M. E. B. R.; PEREIRA, E. C. Using a galvanostatic anodization system as a water heater. Journal of Applied Electrochemistry, v. 39, n. 10, p. 1883-1887, OCT 2009. Web of Science Citations: 2.
GOMES, L.; FREITAS, R. G.; MALPASS, G. R. P.; PEREIRA, E. C.; MOTHEO, A. J. Pt film electrodes prepared by the Pechini method for electrochemical decolourisation of Reactive Orange 16. Journal of Applied Electrochemistry, v. 39, n. 1, p. 117-121, JAN 2009. Web of Science Citations: 8.
FREITAS‚ RG; ANTUNES‚ EP; PEREIRA‚ EC. CO and methanol electrooxidation on Pt/Ir/Pt multilayers electrodes. Electrochimica Acta, v. 54, n. 7, p. 1999-2003, 2009.
RONCONI, CELIA M.; RIBEIRO, CAUE; BULHOES, LUIZ O. S.; PEREIRA, ERNESTO C. Insights for phase control in TiO2 nanoparticles from polymeric precursors method. Journal of Alloys and Compounds, v. 466, n. 1-2, p. 435-438, OCT 20 2008. Web of Science Citations: 23.
LOPES‚ M.C.; OLIVEIRA‚ C.P.; PEREIRA‚ E.C. Computational modeling of the template-assisted deposition of nanowires. Electrochimica Acta, v. 53, n. 13, p. 4359-4369, 2008.
TRIVINHO-STRIXINO‚ F.; GUIMARÃES‚ F.E.G.; PEREIRA‚ E.C. Zirconium oxide anodic films: Optical and structural properties. Chemical Physics Letters, v. 461, n. 1, p. 82-86, 2008.
FERNANDES‚ V.; KLEIN‚ JJ; MATTOSO‚ N.; MOSCA‚ DH; SILVEIRA‚ E.; RIBEIRO‚ E.; SCHREINER‚ WH; VARALDA‚ J.; DE OLIVEIRA‚ AJA. Room temperature ferromagnetism in Co-doped CeO_ {2} films on Si (001). Physical Review B, v. 75, n. 12, p. 121304, 2007.
FREITAS, R. G.; SANTOS, MAURO COELHO DOS; OLIVEIRA, R. T. S.; BULHÕES, L. O. S.; PEREIRA, E. C. Methanol and ethanol electroxidation using Pt electrodes prepared by the polymeric precursor method. Electrochemistry Communications, v. 158, n. 1, p. 164-168, July 2006.
OLIVEIRA, R. T. S.; SANTOS, M. C.; MARCUSSI, B. G.; TANIMOTO, S. T.; BULHÕES, L. O. S.; PEREIRA, E. C. Ethanol oxidation using a metallic bilayer Rh/Pt deposited over Pt as electrocatalyst. Journal of Power Sources, v. 157, n. 1, p. 212-216, June 2006.
FREITAS‚ RG; OLIVEIRA‚ RTS; SANTOS‚ MC; BULHÕES‚ LOS; PEREIRA‚ EC. Preparation of Pt thin film electrodes using the Pechini method. Materials Letters, v. 60, n. 15, p. 1906-1910, 2006.
BERGAMASKI, F. O. F.; SANTOS, M. C.; NASCENTE, P. A. P.; BULHÕES, L. O. S.; PEREIRA, E. C. Electrochemical behavior of Ni particles modified polypyrrole films studied by EQCN technique. Journal of Electroanalytical Chemistry, v. 583, n. 1, p. 162-166, Sept. 2005.

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