Cobalt Supported Catalysts
Mostrando 13-17 de 17 artigos, teses e dissertações.
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13. Desenvolvimento de catalisadores de ródio e cobalto para a reforma a vapor do etanol.
The development of technologies based on the use of biofuels has taken the attention of the scientific community, due to the current dependence on fossil fuels, which results in an increase of air pollution. This pollution increase is related to public health problems and climate changes. In this context, the use of fuel cells moved by hydrogen is a mean of
Publicado em: 2007
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14. Síntese, caracterização e aplicação de catalisadores mistos contendo cobalto e cobre
Studies on the use of catalysts have been directed to develop new processes taking into consideration the economic point of view (for example, substitution for cheaper raw materials) as well as the green chemistry aspects. The majority of supported catalysts is prepared by the impregnation method of the metallic salt over a material of high specific surface
Publicado em: 2007
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15. Copper and cobalt catalysts supported on CeO2, TiO2 and CeO2-TiO2 to reduction NO by CO / Utilização de catalisadores de cobre e cobalto suportados em CeO2, TiO2 e matrizes de CeO2-TiO2, para redução de NO com CO na ausência ou presença de O2
A redução da emissão de compostos nitrogenados tem sido um dos grandes desafios da área de proteção ambiental e o tratamento catalítico pode reduzir significativamente tal emissão. Neste caminho, têm sido testadas várias categorias de catalisadores. Considerando-se o potencial de utilização de catalisadores de cobre e de cobalto nos processos de
Publicado em: 2007
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16. CATALYSTS SUPPORTED IN MICRO AND MESOPOROUS MOLECULAR SIEVES FOR THE FISCHER- TROPSCH SYNTHESIS / CATALISADORES SUPORTADOS EM PENEIRAS MOLECULARES MICRO E MESOPOROSAS PARA A SÍNTESE DE FISCHER-TROPSCH
The Fischer- Tropsch synthesis converts the synthesis gas (H2 + CO), in a complex variety of hydrocarbons, using a catalyst (Co/Al2O3 normally) were introduced to the used supports by the wetness incipient impregnation. The samples were analyzed by several techniques such as: plasma- emission spectrometry (ICP- EAS), N2 physical adsorption by BET method, X-r
Publicado em: 2004
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17. Preparation and characterization of alumina-supported Co and Ag/Co catalysts
The effect of silver addition as a promoter in alumina supported cobalt oxide catalysts is investigated in this study. The Co/Al2O3 and Ag/Co/Al2O3 catalysts were prepared by incipient wetness impregnation. The catalysts were characterized by inductively-coupled plasma spectrometry, X-ray diffraction (XRD), temperature programmed reduction with hydrogen (TPR
Materials Research. Publicado em: 2003-12