caa a22 4500 463253728 CHVBK 20180405153348.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10562-007-9120-y doi (NATIONALLICENCE)springer-10.1007/s10562-007-9120-y Synthesis and characterization of nanocrystalline Mo-V-W-Fe-O mixed oxide catalyst and its performance in selective methanol oxidation [Elektronische Daten] [Badekai Bhat, Jung-Sik Choi, Tae-Hwan Kim] A mixed oxide catalyst containing Mo, V, W and Fe with the composition of 63, 23, 09 and 06 wt% respectively for the selective oxidation of the methanol to formaldehyde is in reported in this paper for the first time. The characterization of the catalyst was done using BET surface analysis, X-ray diffraction (XRD), Infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Energy dispersive X-ray (EDX). The mixed oxide after calcination at 673K in N2 which was subjected for the thermal activation in N2flow at 813K was used for the methanol selective oxidation. The thermal treatment shows enhanced catalytic performance. Thermal activation of the nanocrystalline Mo0.63V23W0.09Fe0.06O x precursor oxide in nitrogen atmospheres induces partial crystallization of a Mo5O14-type oxide only in a narrow temperature range up to 813K. XRD showed that the thermally activated mixed oxide consists of a mixture of a majority of crystalline Mo5O14-type oxide and of small amounts of crystalline MoO3-type and MoO2-type oxides. The structural analysis suggests that the improvement of the catalytic performance of the MoVWFe oxide catalyst in the selective oxidation of methanol is related to the formation of the catalytic active site such as Mo5O14-type mixed oxide. Springer Science+Business Media, LLC, 2007 formaldehyde nationallicence mixed oxide nationallicence methanol nationallicence selective oxidation nationallicence Bhat Badekai Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Srinivasanagar, 575025, Mangalore, India aut Choi Jung-Sik Department of Chemical Engineering, Chungnam National University, Yusong-gu, Daejeon, South Korea aut Kim Tae-Hwan Korea Institute of Energy Research (KIER), Yusong-gu, P.O. Box No. 103, Daejeon, South Korea aut Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 136-139 1011-372X 117:3-4<136 2007 117 10562 https://doi.org/10.1007/s10562-007-9120-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10562-007-9120-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Bhat Badekai Department of Chemistry, National Institute of Technology Karnataka, Surathkal, Srinivasanagar, 575025, Mangalore, India aut NATIONALLICENCE 700 1- Choi Jung-Sik Department of Chemical Engineering, Chungnam National University, Yusong-gu, Daejeon, South Korea aut NATIONALLICENCE 700 1- Kim Tae-Hwan Korea Institute of Energy Research (KIER), Yusong-gu, P.O. Box No. 103, Daejeon, South Korea aut NATIONALLICENCE 773 0- Catalysis Letters Springer US; http://www.springer-ny.com 117/3-4(2007-09-01), 136-139 1011-372X 117:3-4<136 2007 117 10562 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer