Solid Polymeric Electrolytes
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Síntese e caracterização de NiO-CGO para anodo e eletrólitos sólidos e base de Céria para SOFC
The direct use of natural gas makes the Solid Oxide Fuel Cell (SOFC) potentially more competitive with the current energy conversions technologies. The Intermediate Temperature SOFC (IT-SOFC) offer several advantages over the High Temperature SOFC (HT-SOFC), which includes better thermal compatibility among components, fast start with lower energy consumptio
Publicado em: 2009
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2. Síntese, caracterização estrutural, termoquímica e elétrica de materiais cerâmicos para células a combustível de óxido sólido / Synthesis, structural, thermochemical and electrical characterization of ceramic materials for solid oxide fuel cells
Nanocrystalline yttria or scandia stabilized zirconia (YSZ, ScSZ) powders with fluorite-type structure were synthesized by the polyacrylamide, the polymeric precursor and the precipitation methods. Powders were characterized by X-ray diffraction (XRD), simultaneous (TG and DTA or DSC) thermal analysis, nitrogen adsorption analysis, scanning electron microsco
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/12/2008
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3. Eletrólitos poliméricos a partir de amidos de mandioca modificados (catiônico, eterificado e oxidado) / Electrolytes polimerics from modified cassava starches (cationic, etherified and oxidated)
Natural polymers are very interesting matrix to obtain solid polymeric electrolytes (SPE). The principal advantage comes from its particularly interesting biodegradation properties due to the natural precedence and also very low cost and good physical and chemical properties. These polymers contain heteroatoms in its structure and for this reason can complex
Publicado em: 2007
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4. "Electrochromic devices with solid polymeric electrolytes based on starch" / "Dispositivos eletrocrômicos com eletrólitos sólidos poliméricos à base de amido"
This dissertation presents the results of preparation and characterization of five electrochromic devices (DEC) composed of thin films of transition metal oxides, such as WO3, WO3:Ta, Nb2O5:Mo and NiOx as electrochromic layers and CeO2-TiO2 as a transparent counter-electrode. The electrolytes used in these devices were starch-based plasticized with glycerol
Publicado em: 2006
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5. Preparation and characterization of starch grafted with toluene poly (propylene oxide) diisocyanate
Amylopectin-rich starch samples (Amidex 4001 Corn Products Brasil Ingredientes Industriais Ltda.) were grafted with polyethers with the purpose of obtaining new materials for application as solid polymeric electrolytes. Grafting reaction was performed by the addition of starch dissolved in DMSO to toluene poly(propylene oxide) diisocyanate (Resibras) dissolv
Materials Research. Publicado em: 2001
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6. 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