AM-TEPA impregnated disordered mesoporous silica as CO2 capture adsorbent for balanced adsorption–desorption properties / Xiaoyun Zhang in Industrial & engineering chemistry research, Vol. 51 N° 46 (Novembre 2012)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 51 N° 46 (Novembre 2012) . - pp. 15163–15169 Titre : AM-TEPA impregnated disordered mesoporous silica as CO2 capture adsorbent for balanced adsorption–desorption properties Type de document : texte imprimé Auteurs : Xiaoyun Zhang, Auteur ; Xiuxin Zheng, Auteur ; Sisi Zhang, Auteur Année de publication : 2013 Article en page(s) : pp. 15163–15169 Note générale : Industrial chemistry Langues : Anglais (eng) Mots-clés : Mesoporous silica Résumé : A disordered mesoporous silica was found to be a promising solid support for CO2 capture. It was prepared with a process similar to that for MCM-41. X-ray diffraction characterization (XRD) and transmission electron microscopy (TEM) confirmed its disordered structure. N2 adsorption–desorption tests indicated that its average pore size is significantly larger than that of MCM-41. On this support was deposited acrylamide (AM)-modified tetraethylenepentamine (TEPA), resulting in an adsorbent suitable for CO2 capture. This material exhibited well balanced adsorption and desorption properties. Substantially higher CO2 adsorption capacity (159.1 mg/g-adsorbent) was obtained with pure CO2 at 25 °C, and satisfactory stability during 12 adsorption–desorption turnovers was achieved. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300180u [article] AM-TEPA impregnated disordered mesoporous silica as CO2 capture adsorbent for balanced adsorption–desorption properties [texte imprimé] / Xiaoyun Zhang, Auteur ; Xiuxin Zheng, Auteur ; Sisi Zhang, Auteur . - 2013 . - pp. 15163–15169. Industrial chemistry Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 51 N° 46 (Novembre 2012) . - pp. 15163–15169 Mots-clés : Mesoporous silica Résumé : A disordered mesoporous silica was found to be a promising solid support for CO2 capture. It was prepared with a process similar to that for MCM-41. X-ray diffraction characterization (XRD) and transmission electron microscopy (TEM) confirmed its disordered structure. N2 adsorption–desorption tests indicated that its average pore size is significantly larger than that of MCM-41. On this support was deposited acrylamide (AM)-modified tetraethylenepentamine (TEPA), resulting in an adsorbent suitable for CO2 capture. This material exhibited well balanced adsorption and desorption properties. Substantially higher CO2 adsorption capacity (159.1 mg/g-adsorbent) was obtained with pure CO2 at 25 °C, and satisfactory stability during 12 adsorption–desorption turnovers was achieved. ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie300180u

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