ChemInform Abstract: SYNERGY EFFECTS IN THE CATALYTIC PROPERTIES OF BISMUTH MOLYBDATES

Carson, Douglas; Coudurier, G.; Forissier, M.; Vedrine, J. C.; Laarif, Ahmed; Théobald, F.

doi:10.1002/chin.198346033

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“…Some researchers have claimed Bi2MoO6 to be the least efficient phase for partial oxidation reaction [2,10], but some have labeled it as having activity that is similar to Bi2Mo3O12 [11,12]. The Bi2MoO6 crystal structure is made up of alter-nating layers of [Bi2O2] 2+ and [MoO2] 2+ , wherein the octahedral MoO6 are linked to each other by corner sharing [13].…”

Section: Introductionmentioning

confidence: 99%

Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System

Parab

Naik

Salker

2017

Bull. Chem. React. Eng. Catal.

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The compounds Bi2Mo1-xWxO6 (x = 0.0, 0.2, and 0.4) were obtained through a Citrate sol-gel process. Thermogravimetric differential thermal analysis (TG-DTA), X-ray diffraction (XRD), Scanning electron microscopy (SEM) and X-ray photoelectron spectroscopy (XPS) techniques were used for characterization. Reitveld refinement of the XRD data confirmed the crystal structure of all the compositions to be orthorhombic, having Pca21 space group. XPS studies indicated the presence of +6 as well as +4 oxidation state for Mo. Surface acid enrichment of all the catalysts was done and monitored by NH3-TPD studies. Partial oxidation of propylene was studied over all the compounds. The W doping was found to increase the catalytic activity. Moreover, as-prepared catalysts and acid enriched catalysts were compared for their catalytic activity wherein, acid-enriched catalysts showed the improved conversion of propylene without hampering the product selectivity profile.

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Section: Introductionmentioning

confidence: 99%

Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System

Parab

Naik

Salker

2017

Bull. Chem. React. Eng. Catal.

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ChemInform Abstract: SYNERGY EFFECTS IN THE CATALYTIC PROPERTIES OF BISMUTH MOLYBDATES

Abstract: Die α‐, β‐ und γ‐Phasen von Bi‐molybdat mit den Zusammensetzungen Bi2Mo3O", Bi2MO2 O9 bzw. Bi2MoO6 sowie innige äquimolare Gemenge der a‐ und γ‐Phasen werden auf ihre katalytische Aktivität für die milde Oxidation von Propen zu Acrolein hin untersucht.

Cited by 1 publication

References 1 publication

Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System

Partial Oxidation of Propylene over as Prepared and Acid Enriched Bi2Mo1-xWxO6 System

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