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SINERGIA EN LA REDUCCIÓN CATALÍTICA SELECTIVA DE NOx SOBRE FERRITAS Cu1-XCoXFe2O4.

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Title: SINERGIA EN LA REDUCCIÓN CATALÍTICA SELECTIVA DE NOx SOBRE FERRITAS Cu1-XCoXFe2O4.
Alternate Title: SYNERGY IN THE SELECTIVE CATALYTIC REDUCTION OF NOX OVER Cu1-XCoXFe2O4 FERRITES.
Authors: Briceño, Sarah1 sbriceno@ivic.gob.ve, Sagredo, Vicente2, Del Castillo, Hector3
Source: LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM). 2012, Vol. 32 Issue 1, p129-135. 7p.
Subjects: Ferrites, Nanoparticles, Thermogravimetry, Gravimetric analysis
Abstract (English): Ferrite nanoparticles of Cu1-XCoXFe2O4, were synthesized by sol-gel auto-combustion method and characterized using the techniques: Thermo gravimetric (TGA), Differential Thermal Analysis (DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Surface area (BET), X-ray spectroscopy (XPS), Temperature programmed reduction (TPR) and Temperature programmed desorption (TPD). The obtained particles with an average size of 100 nm and spherical shape. The catalytic tests revealed that the Cu1-XCoXFe2O4 ferrites are efficient catalysts for the Selective Catalytic Reduction of NOx (SCR-NOx), using a hydrocarbon as a reducing agent in the range of 250-450 ºC, obtaining a maximum conversion of 40% NO and 95% selectivity towards the formation of N2, suggesting the presence of a synergistic effect between Cu2+ and Co2+ in the system Cu1-XCoXFe2O4. [ABSTRACT FROM AUTHOR]
Abstract (Spanish): Nanopartículas de ferritas del tipo Cu1-XCoXFe2O4, se sintetizaron utilizando el método sol-gel de auto-combustión y se caracterizaron usando las técnicas: Análisis termo gravimétrico (TGA), Análisis térmico diferencial (DTA), Difracción de rayos X (DRX), Microscopía electrónica de barrido (MEB), Microscopía electrónica de transmisión (MET), Área superficial (BET), Espectroscopia de rayos X (XPS), Termo reducción a temperatura programada (TPR) y Termo desorción a temperatura programada (TPD). Las nanopartículas obtenidas con un tamaño promedio de 100 nm y de forma esférica, mostraron formación de conglomerados. Las pruebas catalíticas revelaron que las ferritas Cu1-XCoXFe2O4, son catalizadores eficientes para la Reducción catalítica selectiva de NOx (RCS-NOx), usando un hidrocarburo como agente reductor, alcanzando una conversión máxima de 40% de NO a 350°C y un 95% de selectividad hacia la formación de N2debido a la influencia de los metales Cu2+ y Co2+ sugiriendo la presencia de un efecto sinérgico en el sistema Cu1-x CoxFe2O4. [ABSTRACT FROM AUTHOR]
Copyright of LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM) is the property of Universidad Simon Bolivar, Departmento de Ciencia de los Materiales and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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  Data: SYNERGY IN THE SELECTIVE CATALYTIC REDUCTION OF NOX OVER Cu1-XCoXFe2O4 FERRITES.
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  Data: <searchLink fieldCode="AR" term="%22Briceño%2C+Sarah%22">Briceño, Sarah</searchLink><relatesTo>1</relatesTo><i> sbriceno@ivic.gob.ve</i><br /><searchLink fieldCode="AR" term="%22Sagredo%2C+Vicente%22">Sagredo, Vicente</searchLink><relatesTo>2</relatesTo><br /><searchLink fieldCode="AR" term="%22Del+Castillo%2C+Hector%22">Del Castillo, Hector</searchLink><relatesTo>3</relatesTo>
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  Data: <searchLink fieldCode="DE" term="%22Ferrites%22">Ferrites</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Thermogravimetry%22">Thermogravimetry</searchLink><br /><searchLink fieldCode="DE" term="%22Gravimetric+analysis%22">Gravimetric analysis</searchLink>
– Name: Abstract
  Label: Abstract (English)
  Group: Ab
  Data: Ferrite nanoparticles of Cu1-XCoXFe2O4, were synthesized by sol-gel auto-combustion method and characterized using the techniques: Thermo gravimetric (TGA), Differential Thermal Analysis (DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM), Transmission electron microscopy (TEM), Surface area (BET), X-ray spectroscopy (XPS), Temperature programmed reduction (TPR) and Temperature programmed desorption (TPD). The obtained particles with an average size of 100 nm and spherical shape. The catalytic tests revealed that the Cu1-XCoXFe2O4 ferrites are efficient catalysts for the Selective Catalytic Reduction of NOx (SCR-NOx), using a hydrocarbon as a reducing agent in the range of 250-450 ºC, obtaining a maximum conversion of 40% NO and 95% selectivity towards the formation of N2, suggesting the presence of a synergistic effect between Cu2+ and Co2+ in the system Cu1-XCoXFe2O4. [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label: Abstract (Spanish)
  Group: Ab
  Data: Nanopartículas de ferritas del tipo Cu1-XCoXFe2O4, se sintetizaron utilizando el método sol-gel de auto-combustión y se caracterizaron usando las técnicas: Análisis termo gravimétrico (TGA), Análisis térmico diferencial (DTA), Difracción de rayos X (DRX), Microscopía electrónica de barrido (MEB), Microscopía electrónica de transmisión (MET), Área superficial (BET), Espectroscopia de rayos X (XPS), Termo reducción a temperatura programada (TPR) y Termo desorción a temperatura programada (TPD). Las nanopartículas obtenidas con un tamaño promedio de 100 nm y de forma esférica, mostraron formación de conglomerados. Las pruebas catalíticas revelaron que las ferritas Cu1-XCoXFe2O4, son catalizadores eficientes para la Reducción catalítica selectiva de NOx (RCS-NOx), usando un hidrocarburo como agente reductor, alcanzando una conversión máxima de 40% de NO a 350°C y un 95% de selectividad hacia la formación de N2debido a la influencia de los metales Cu2+ y Co2+ sugiriendo la presencia de un efecto sinérgico en el sistema Cu1-x CoxFe2O4. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM) is the property of Universidad Simon Bolivar, Departmento de Ciencia de los Materiales and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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    Languages:
      – Code: spa
        Text: Spanish
    PhysicalDescription:
      Pagination:
        PageCount: 7
        StartPage: 129
    Subjects:
      – SubjectFull: Ferrites
        Type: general
      – SubjectFull: Nanoparticles
        Type: general
      – SubjectFull: Thermogravimetry
        Type: general
      – SubjectFull: Gravimetric analysis
        Type: general
    Titles:
      – TitleFull: SINERGIA EN LA REDUCCIÓN CATALÍTICA SELECTIVA DE NOx SOBRE FERRITAS Cu1-XCoXFe2O4.
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          Name:
            NameFull: Briceño, Sarah
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            NameFull: Sagredo, Vicente
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            NameFull: Del Castillo, Hector
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            – D: 01
              M: 01
              Text: 2012
              Type: published
              Y: 2012
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              Value: 32
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              Value: 1
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            – TitleFull: LatinAmerican Journal of Metallurgy & Materials / Revista Latinoamericana de Metalurgia y Materiales (RLMM)
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