Molybdenum based mixed oxide containing Mo<inf>0.65</inf>V <inf>0.25</inf>W<inf>0.10</inf> was investigated for the partial oxidation of methanol. The structural property and catalytic activity of the mixed oxide catalyst was studied by surface area (BET), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier transform infra-red spectroscopy (FTIR) and X-ray diffraction (XRD). The thermal activation of the catalyst resulted increase in the conversion of methanol and the selectivity to formaldehyde. The thermal activation of the MoVW mixed oxide in nitrogen atmospheres induces partial crystallization of a Mo<inf>5</inf>O<inf>14</inf>-type oxide at 813 K. The SEM images of the thermally activated catalyst show needle like particles. These particles were agglomerates of platelet-like crystallites of a few hundreds of nanometers in size. SEM and EDX techniques show that the mixed oxide is characterized by an inhomogeneous elemental distribution on the length scale of a few microns. XRD of the thermally activated catalyst showed a nanocrystalline material identified as a mixture of Mo<inf>5</inf>O <inf>14</inf>, MoO<inf>3</inf> and MoO<inf>2</inf>-type MoVW oxides. The catalytic activity of the MoVW mixed oxide show a good conversion of methanol and selectivity to formaldehyde. © 2005 Springer Science+Business Media, Inc.

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dc.contributor.authorBadekai Ramachandra, B.
dc.contributor.authorChoi, J.-S.
dc.contributor.authorChoo, K.-Y.
dc.contributor.authorSung, J.-S.
dc.contributor.authorSong, S.-D.
dc.contributor.authorKim, T.-H.
dc.date.accessioned2026-02-05T11:00:17Z
dc.date.issuedPartial oxidation of methanol to formaldehyde on molybdenum based mixed oxide catalyst
dc.description.abstract2005
dc.identifier.citationCatalysis Letters, 2005, 105, 46054, pp. 23-27
dc.identifier.issn1011372X
dc.identifier.urihttps://doi.org/10.1007/s10562-005-8000-6
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/27909
dc.subjectCatalysis
dc.subjectCatalysts
dc.subjectFormaldehyde
dc.subjectFourier transform infrared spectroscopy
dc.subjectMolybdenum compounds
dc.subjectOxidation
dc.subjectScanning electron microscopy
dc.subjectX ray diffraction analysis
dc.subjectMethyl oxide
dc.subjectPartial oxidation
dc.subjectSurface area
dc.subjectThermal activation
dc.subjectMethanol
dc.titleMolybdenum based mixed oxide containing Mo<inf>0.65</inf>V <inf>0.25</inf>W<inf>0.10</inf> was investigated for the partial oxidation of methanol. The structural property and catalytic activity of the mixed oxide catalyst was studied by surface area (BET), scanning electron microscopy (SEM), energy dispersive X-ray (EDX), Fourier transform infra-red spectroscopy (FTIR) and X-ray diffraction (XRD). The thermal activation of the catalyst resulted increase in the conversion of methanol and the selectivity to formaldehyde. The thermal activation of the MoVW mixed oxide in nitrogen atmospheres induces partial crystallization of a Mo<inf>5</inf>O<inf>14</inf>-type oxide at 813 K. The SEM images of the thermally activated catalyst show needle like particles. These particles were agglomerates of platelet-like crystallites of a few hundreds of nanometers in size. SEM and EDX techniques show that the mixed oxide is characterized by an inhomogeneous elemental distribution on the length scale of a few microns. XRD of the thermally activated catalyst showed a nanocrystalline material identified as a mixture of Mo<inf>5</inf>O <inf>14</inf>, MoO<inf>3</inf> and MoO<inf>2</inf>-type MoVW oxides. The catalytic activity of the MoVW mixed oxide show a good conversion of methanol and selectivity to formaldehyde. © 2005 Springer Science+Business Media, Inc.

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