1992
DOI: 10.1139/v92-002
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Catalytic activity of vanadyl phosphate supported on TiO2 (anatase) and SiO2 (silica)

Abstract: M. MARTINEZ-LARA, L. MORENO-REAL, R. POZAS-TORMO, A. JIMENEZ-LOPEZ, S. BRUQUE, P. RUE, and G. PONCELET. Can. J. Chem. 70, 5 (1992).Oxidation of n-butane was investigated on vanadyl phosphate (VP) prepared in the presence of titania (anatase) and silica as supports. In the case of silica, a-VOPO, was synthesized with no sign of interaction between the silica surface and vanadium phosphate. On the contrary, titania was coated with amorphous VP (P/V = l), preventing the crystallization of VOPO, at least up to th… Show more

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Cited by 19 publications
(2 citation statements)
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“…However, the use of a support also introduces support−oxide interactions that could affect the formation of the VPO phases. Indeed, reports in the literature all show much lower selectivity for maleic anhydride formation over supported as compared to unsupported VPO catalysts. However, these reports did not provide sufficient information to understand the difference. Therefore, we have initiated a research program to characterize supported VPO catalysts to gain an understanding of the support effect and to determine the chemical properties important for high selectivity.…”
Section: Introductionmentioning
confidence: 97%
“…However, the use of a support also introduces support−oxide interactions that could affect the formation of the VPO phases. Indeed, reports in the literature all show much lower selectivity for maleic anhydride formation over supported as compared to unsupported VPO catalysts. However, these reports did not provide sufficient information to understand the difference. Therefore, we have initiated a research program to characterize supported VPO catalysts to gain an understanding of the support effect and to determine the chemical properties important for high selectivity.…”
Section: Introductionmentioning
confidence: 97%
“…In literature, only a few other examples of deposition of V-P-O on silica [8][9][10], titania [11], alumina [11][12][13][14] and AlPO 4 [15] have been described. Generally, the lack of long-range order of the supported V-P-O particles compromises a proper characterisation of the supported V-P-O phase with common techniques like X-ray diffraction or FTIR spectroscopy.…”
Section: Introductionmentioning
confidence: 99%