Catalytic incineration of acetone on mesoporous silica supported metal oxides prepared by one-step aerosol method / ChenYeh Wang in Industrial & engineering chemistry research, Vol. 50 N° 7 (Avril 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3842–3848 Titre : Catalytic incineration of acetone on mesoporous silica supported metal oxides prepared by one-step aerosol method Type de document : texte imprimé Auteurs : ChenYeh Wang, Auteur ; Hsunling Bai, Auteur Année de publication : 2011 Article en page(s) : pp. 3842–3848 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Catalytic oxides Résumé : Mesoporous silica supported metal oxide catalysts were synthesized by a one-step fast aerosol process based on an evaporation induced self-assembly (EISA) method. They were then applied to the catalytic incineration of VOCs with acetone as the target species. The synthesized metal-MSPs (mesoporous silica particles) were characterized by N2 adsorption−desorption measurements, X-ray diffraction (XRD), transmission electron microscopy (TEM), and inductively coupled plasma-mass spectrometer (ICP−MS) to understand their physical and chemical properties. Tests on various metals of Ce, Mn, Cu, Fe, and Al supported on MSPs over a temperature range of 150−350 °C demonstrated that Ce is the best metal for the catalytic incineration of acetone. The Ce-MSPs(10) has a high Ce loading of 9.76 wt %, but its small specific surface area of 615 m2/g, poor pore size distribution, and less-ordered pore structure resulted in a relatively lower acetone removal as compared to the Ce-MSPs(25). The Ce-MSPs(25) catalyst appeared to be the best acetone catalytic incineration performance due to the high specific surface area of 951 m2/g with highly ordered pore structure as well as optimal Ce metal content of 3.72 wt % so that CeO2 particles were well dispersed on the porous surfaces. Near complete acetone destruction via Ce-MSPs(25) catalyst was achieved at a temperature of 250 °C, acetone inlet concentration of 1000 ppmv and GHSV of 5000 h−1. The long-term stability test showed that the acetone destruction efficiency can be kept constant during the 96 h test period. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101809t [article] Catalytic incineration of acetone on mesoporous silica supported metal oxides prepared by one-step aerosol method [texte imprimé] / ChenYeh Wang, Auteur ; Hsunling Bai, Auteur . - 2011 . - pp. 3842–3848. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 7 (Avril 2011) . - pp. 3842–3848 Mots-clés : Catalytic oxides Résumé : Mesoporous silica supported metal oxide catalysts were synthesized by a one-step fast aerosol process based on an evaporation induced self-assembly (EISA) method. They were then applied to the catalytic incineration of VOCs with acetone as the target species. The synthesized metal-MSPs (mesoporous silica particles) were characterized by N2 adsorption−desorption measurements, X-ray diffraction (XRD), transmission electron microscopy (TEM), and inductively coupled plasma-mass spectrometer (ICP−MS) to understand their physical and chemical properties. Tests on various metals of Ce, Mn, Cu, Fe, and Al supported on MSPs over a temperature range of 150−350 °C demonstrated that Ce is the best metal for the catalytic incineration of acetone. The Ce-MSPs(10) has a high Ce loading of 9.76 wt %, but its small specific surface area of 615 m2/g, poor pore size distribution, and less-ordered pore structure resulted in a relatively lower acetone removal as compared to the Ce-MSPs(25). The Ce-MSPs(25) catalyst appeared to be the best acetone catalytic incineration performance due to the high specific surface area of 951 m2/g with highly ordered pore structure as well as optimal Ce metal content of 3.72 wt % so that CeO2 particles were well dispersed on the porous surfaces. Near complete acetone destruction via Ce-MSPs(25) catalyst was achieved at a temperature of 250 °C, acetone inlet concentration of 1000 ppmv and GHSV of 5000 h−1. The long-term stability test showed that the acetone destruction efficiency can be kept constant during the 96 h test period. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie101809t

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