Solid Oxide Fuel Cells Sofc
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Optimization of spin-coated electrodes for electrolyte-supported solid oxide fuel cells
ABSTRACT Electrodes for electrolyte-supported solid oxide fuel cells (SOFC's) were fabricated by spin coating. Strontium-doped lanthanum manganite (LSM) cathode and nickel yttria-stabilized zirconia cermet anodes were synthesized and processed for enhanced deposition conditions. The influence of electrode microstructural parameters was investigated by a syst
Matéria (Rio J.). Publicado em: 22/05/2017
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2. Evaluation of nickel and copper catalysts in biogas reforming for hydrogen production in SOFC
ABSTRACT The solid oxide fuel cells (SOFC) enable the efficient generation of clean energy, fitting the current requirements of the growing demand for electricity and for the environment preservation. When powered with biogas (from digesters of municipal wastes), the SOFCs also contribute to reduce the environmental impact of these wastes. The most suitable
Matéria (Rio J.). Publicado em: 22/05/2017
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3. Effect of La 0.8 Sr 0.2 MnO 3 powder addition in the precursor solution on the properties of cathode films deposited by spray pyrolysis
ABSTRACT Films of lanthanum strontium manganite, LSM (La0.8Sr0.2MnO3) were deposited on yttria stabilized zirconia (YSZ) substrates by different methods aiming to establish the most suitable route to prepare cathodes for solid oxide fuel cells (SOFC). Samples were obtained by using a solution of lanthanum, strontium and manganese nitrates or a dispersion of
Matéria (Rio J.). Publicado em: 11/05/2017
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4. Compatibility analyses of BICUVOX.10 as a cathode in yttria-stabilized zirconia electrolytes for usage in solid oxide fuel cells
Copper-substituted bismuth vanadate has been considered a promising material for composite cathodes in SOFC. However, high reactivity of BICUVOX.10 towards the electrolytes still has been its greatest shortcoming. This paper describes reactions between BICUVOX.10 and yttria-stabilized zirconia (YSZ) electrolytes. Secondary phases formed were evaluated by X-r
Mat. Res.. Publicado em: 30/09/2014
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5. The effect of Pr co-doping on the densification and electrical properties of Sr-LaAlO3
Perovskite-type materials have been investigated extensively in the attempt to discover new electrolyte materials for solid oxide fuel cells (SOFC) operating at low temperatures. These materials include LaAlO3-based perovskite, which, when adequately doped, presents high ionic conductivity. However, despite the high conductivity of doped LaAlO3, two characte
Mat. Res.. Publicado em: 07/06/2013
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6. Yttria and ceria doped zirconia thin films grown by pulsed laser deposition
The Yttria stabilized Zirconia (YSZ) is a standard electrolyte for solid oxide fuel cells (SOFCs), which are potential candidates for next generation portable and mobile power sources. YSZ electrolyte thin films having a cubic single phase allow reducing the SOFC operating temperature without diminishing the electrochemical power density. Films of 8 mol% Ytt
Mat. Res.. Publicado em: 16/04/2013
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7. LaCrO3 composite coatings for AISI 444 stainless steel solid oxide fuel cell interconnects
Doped lanthanum chromite-based ceramics are the most widely used interconnector material in solid fuel cells (SOFC) since they exhibit significant electrical and thermal conductivity, substantial corrosion resistance and adequate mechanical strength at ambient and high temperatures. The disadvantage of this material is its high cost and poor ductility. The a
Mat. Res.. Publicado em: 23/10/2012
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8. A utilização de etanol em célula a combustível de óxido sólido
This work reports a review on the status and technical feasibility of the application of ethanol as fuel for Solid Oxide Fuel Cells (SOFC), presenting both external reform and cell with direct utilization of ethanol. Based on this survey, both experimental results and mathematical modeling indicated the technical feasibility of power generation by ethanol SO
Quím. Nova. Publicado em: 2012
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9. Síntese de manganita dopada com estrôncio e cobaltita dopada com antimônio e caracterização microestrutural
The great variety of properties of oxides with the perovskite structure allows their application in several fields of technology. Specially, the electrochemical properties and the thermal stability of some of these compounds make these materials the most used in devices for energy generation such as the solid oxide fuel cells (SOFC). SOFC¿s are devices the
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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10. Synthesis and characterization of manganite-cromite lanthanum doped with ruthenium anodes for solid oxide fuel cells / Síntese e caracterização de manganita-cromita de lantânio dopada com rutênio para anodos de células a combustível de óxidos sólidos
Diversos anodos para célula a combustível de óxido sólido (SOFC) têm sido estudados devido aos problemas de deterioração dos anodos tradicionalmente usados, os compósitos à base de zircônia estabilizada/Ni (YSZ/Ni). Estudos prévios evidenciaram que a perovskita La0,75Sr0,25Cr0,50Mn0,50O3 (LSCM) possui desempenho similar em SOFCs usando hidrogênio
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/08/2011
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11. Tratamento superficial do aço inoxidável ferrítico com revestimento La0,6Sr0,4CoO3 para aplicação como interconectores em células a combustíveis do tipo ITSOFC
High-temperature solid oxide fuel cells (800-1000°C) are energy power generation, directly converting the chemical energy into electricity by combining fuel and oxygen. With the reduction of SOFC operating temperature into an intermediate temperature range of 600-800 °C, it has become possible to replace conventional ceramics with metallic alloys for inter
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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12. Desenvolvimento de camadas finas de eletrólitos de zircênia depositados por spin coating para células a combustível de óxido sólido / Development of thin layers of zirconia electrolytes deposited by spin coating for solid oxide fuel cells
Este trabalho de mestrado teve como objetivo principal a fabricação de células a combustível de óxido sólido (SOFC) suportadas no anodo com camada de eletrólito depositada por spin coating. As principais etapas envolveram: i) a fabricação e caracterização dos substratos do anodo, o compósito níquel / zircônia estabilizada com ítria (Ni / YSZ);
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/08/2010