Effect of la on Ni - W - B amorphous catalysts in hydrodeoxygenation of phenol / Weiyan Wang in Industrial & engineering chemistry research, Vol. 50 N° 19 (Octobre 2011)  

Public ISBD [article]  inIndustrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 10936–10942 Titre : Effect of la on Ni - W - B amorphous catalysts in hydrodeoxygenation of phenol Type de document : texte imprimé Auteurs : Weiyan Wang, Auteur ; Yunquan Yang, Auteur ; Hean Luo, Auteur Année de publication : 2011 Article en page(s) : pp. 10936–10942 Note générale : Chimie industrielle Langues : Anglais (eng) Mots-clés : Catalyst Résumé : Ni―W―B and La―promoted Ni―W―B amorphous catalysts were prepared by chemical reduction and applied within the hydrodeoxygenation (HDO) of phenol. The resulting catalysts were characterized by surface area, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that some of the electrons were transferred from B0 to Ni0 in Ni―W―B amorphous catalyst. La promoted the reduction of Ni2+ to Ni0 and increased the WO3 content on the catalyst surface. Adding appropriate La in Ni―W―B amorphous catalyst improved the amorphous degree of the catalyst, but excess amounts of La covered some active sites and decreased the catalyst surface area. The HDO of phenol on these amorphous catalysts proceeded via the hydrogenation―dehydration route, leading to no benzene in the products, which could meet the standard of clear fuel in European regulation. La―Ni―W―B amorphous catalysts exhibited higher activities in the HDO of phenol than Ni―W―B amorphous catalyst. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24573287 [article] Effect of la on Ni - W - B amorphous catalysts in hydrodeoxygenation of phenol [texte imprimé] / Weiyan Wang, Auteur ; Yunquan Yang, Auteur ; Hean Luo, Auteur . - 2011 . - pp. 10936–10942. Chimie industrielle Langues : Anglais (eng) in Industrial & engineering chemistry research > Vol. 50 N° 19 (Octobre 2011) . - pp. 10936–10942 Mots-clés : Catalyst Résumé : Ni―W―B and La―promoted Ni―W―B amorphous catalysts were prepared by chemical reduction and applied within the hydrodeoxygenation (HDO) of phenol. The resulting catalysts were characterized by surface area, X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), and scanning electron microscopy (SEM). The results showed that some of the electrons were transferred from B0 to Ni0 in Ni―W―B amorphous catalyst. La promoted the reduction of Ni2+ to Ni0 and increased the WO3 content on the catalyst surface. Adding appropriate La in Ni―W―B amorphous catalyst improved the amorphous degree of the catalyst, but excess amounts of La covered some active sites and decreased the catalyst surface area. The HDO of phenol on these amorphous catalysts proceeded via the hydrogenation―dehydration route, leading to no benzene in the products, which could meet the standard of clear fuel in European regulation. La―Ni―W―B amorphous catalysts exhibited higher activities in the HDO of phenol than Ni―W―B amorphous catalyst. DEWEY : 660 ISSN : 0888-5885 En ligne : http://cat.inist.fr/?aModele=afficheN&cpsidt=24573287

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