Electrochemical Capacitors
Mostrando 1-7 de 7 artigos, teses e dissertações.
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1. Grafting of Quinones on Carbons as Active Electrode Materials in Electrochemical Capacitors
The electrochemical performance of electrochemical capacitors can be improved with electroactive quinone molecules. Systems based on redox active electrolyte as well as physisorbed and chemically grafted molecules have been investigated. In all these cases, carbon materials were used as substrate and electrode material. This short review will mainly describe
J. Braz. Chem. Soc.. Publicado em: 2018-05
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2. Boron Doped Ultrananocrystalline Diamond Films on Porous Silicon: Morphological, Structural and Electrochemical Characterizations
Boron doped ultrananocrystalline diamond (BDUND) films were grown and characterized on porous silicon (PS) substrates. PS samples were prepared from n-type monocrystalline silicon wafers (100) with 1-20 Ω.cm of resistivity, by electrochemical etching, using HF-acetonitrile solution as electrolyte. BDUND films were grown by Hot Filament Chemical Vapor Deposi
Mat. Res.. Publicado em: 24/11/2015
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3. Macroporous MnO2 electrodes obtained by template assisted electrodeposition for electrochemical capacitors
Eletrodos macroporosos de MnO2 foram preparados por eletrodeposição assistida por molde de partículas esféricas coloidais de poliestireno. A molhabilidade desses filmes foi estudada por medidas de ângulo de contato. Medidas de voltametria cíclica foram realizadas com o objetivo de estudar o seu comportamento como eletrodo para supercapacitores. A capac
Journal of the Brazilian Chemical Society. Publicado em: 2010
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4. Polyphosphate Gels Applied to Electrochemical Devices Assembling / AplicaÃÃo de gÃis de polifosfatos à construÃÃo de dispositivos eletroquÃmicos
Hybrid materials between aluminum and iron polyphosphate gels, polyaniline and carbon materials were synthesized and were used as electrode materials to assemble electrochemical devices. The aluminum and iron polyphosphate gels, the carbon materials as well as the hybrids obtained between these materials and polyaniline were characterized by thermogravimetri
Publicado em: 2008
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5. Polyphosphate hybrid materials: photochemistry, (di)electric characterization and its application in electrochemical capacitors / Materiais hÃbridos de polifosfatos: fotoquÃmica, caracterizaÃÃo (di)elÃtrica e sua utilizaÃÃo em capacitores eletroquÃmicos
The synergy between the properties of two substances, an organic and another inorganic, can be obtained in a single material by the sol-gel process. The low temperature processing allow the incorporation of organic substances in inorganic matrices. These hybrid materials can have covalent interactions between host and guest (C1), or weak interactions, like v
Publicado em: 2008
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6. Dispositivo de armazenamento de energia utilizando polianilina e eletrolito polimerico
Recently, supercapacitors or electrochemical capacitors have brought renewed interest in the area of energy storage because of possible application in electric vehicles and electronic devices. The developments in this area require energy storage with a high density and short charge discharge times. Conductive polymers have advantages over metal oxides as ele
Publicado em: 2000
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7. Desenvolvimento de um capacitor eletroquimico polimerico
Conducting polymers represent an interesting class of materiaIs for using in electrochemical devices. These materials have important characteristics such as; changing from no conductor electronic state to conductor electronic state by redox process and changing of coloration by the application of an extern potential (electrochromism). The utilization of cond
Publicado em: 1997