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Carbon nanotubes coated on silica gels as a support of Cu – Co catalyst for the synthesis of higher alcohols from syngas / Wei Feng in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011) 

Public ISBD [article]  in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11067–11072 Titre : Carbon nanotubes coated on silica gels as a support of Cu – Co catalyst for the synthesis of higher alcohols from syngas Type de document : texte imprimé Auteurs : Wei Feng, Auteur ; Qingwei Wang, Auteur ; Biao Jiang, Auteur Année de publication : 2011 Article en page(s) : pp. 11067–11072 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Carbon  nanotubes  Catalyst Résumé : This work demonstrates a new approach to preparing Cu–Co-based catalysts for higher alcohols synthesis from syngas. Oxidized multiwalled carbon nanotubes (MWNTs) were adsorbed onto silica gels, and MWNT- silica gels were used as the support of a Cu–Co-based catalyst. Pyrogallol was used in preparing the catalyst. It has been found that the carbon nanotubes in the support favor the distribution and interaction of Cu and Co species; using pyrogallol in preparing the catalyst improves the distribution of Cu and Co species and promotes the interaction between the species. As a result, the catalyst can decrease the methanol selectivity from 43.0% to 26.8% and increase the ethanol selectivity from 33.1% to 43.5%, in comparison to the catalyst with silica gels as the support. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2014907 [article] Carbon nanotubes coated on silica gels as a support of Cu – Co catalyst for the synthesis of higher alcohols from syngas [texte imprimé] / Wei Feng, Auteur ; Qingwei Wang, Auteur ; Biao Jiang, Auteur . - 2011 . - pp. 11067–11072. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 11067–11072 Mots-clés : Carbon  nanotubes  Catalyst Résumé : This work demonstrates a new approach to preparing Cu–Co-based catalysts for higher alcohols synthesis from syngas. Oxidized multiwalled carbon nanotubes (MWNTs) were adsorbed onto silica gels, and MWNT- silica gels were used as the support of a Cu–Co-based catalyst. Pyrogallol was used in preparing the catalyst. It has been found that the carbon nanotubes in the support favor the distribution and interaction of Cu and Co species; using pyrogallol in preparing the catalyst improves the distribution of Cu and Co species and promotes the interaction between the species. As a result, the catalyst can decrease the methanol selectivity from 43.0% to 26.8% and increase the ethanol selectivity from 33.1% to 43.5%, in comparison to the catalyst with silica gels as the support. DEWEY : 660 ISSN : 0888-5885 En ligne : http://pubs.acs.org/doi/abs/10.1021/ie2014907