Herein we report a novel strategy capable of generating a new class of metal–organic zeolite (MOZ) materials. When the MoO4 or WO4 tetrahedra are employed to assemble with triorganotin R3Sn fragments, four 3D networks with the zeolite BCT topology and nonzeotype 4-connected topological net (such as lon and dia) have been generated. The photocurrent study results show that these materials have good
Effect of MgO-doping on solid–solid interactions in MoO3/Al2O3 system
作者:H.G. El-Shobaky、M. Mokhtar、A.S. Ahmed
DOI:10.1016/s0040-6031(98)00657-1
日期:1999.3
effect of MgO-doping (2–10 mol%) on solid–solidinteractions and phase transformation process in MoO3/Al2O3 system were studied using thermogravimetry and X-ray diffraction (TG, DTG and XRD) techniques. The proportions of molybdena expressed as weight percent were 12.36, 22.01 and 41.37. The results obtained showed that the MgO-doping promoted the solid–solidinteraction taking place at 500°C between Al2O3
Thermal decomposition of hydrotalcite with chromate, molybdate or sulphate in the interlayer
作者:Ray L. Frost、Anthony W. Musumeci、Thor Bostrom、Moses O. Adebajo、Matt L. Weier、Wayde Martens
DOI:10.1016/j.tca.2005.03.014
日期:2005.5
of the thermaldecomposition. For the sulphate-hydrotalcite decomposition the products were MgO and a spinet MgAl2O4, for the chromate interlayered hydrotalcite MgO, Cr2O3 and spinel. For the molybdate interlayered hydrotalcite the products were MgO, spinet and MgMoO4. EDX analyses enabled the formula of the hydrotalcites to be determined. Two processes are observed in the thermaldecomposition namely
Phase relations in the magnesium oxide-rich corner of the systemMgO-V2O5-MoO3 were studied. A new compound, Mg2.5VMoO8, was discovered. The solubility limit of molybdenum oxide in magnesium orthovanadate Mg3−xV2−2xMo2xO8 was found to be x ∼ 0.03. Butane oxidation studies of oxides with compositions along the pseudobinary line Mg3V2O8-Mg2.5VMoO8-MgMoO4 were investigated. All the compositions studied
研究了MgO-V 2 O 5 -MoO 3体系中富镁角的相关系。发现了一种新的化合物Mg 2.5 VMoO 8。氧化钼在原钒酸镁镁中的溶解度极限3- X V 2-2 X沫2 X ö 8被发现是X〜0.03。沿着伪二元线Mg 3 V 2 O 8 -Mg 2.5 VMoO 8 -MgMoO 4组成的氧化物的丁烷氧化研究被调查了。所有研究的组成均保持原钒酸镁的高催化脱氢选择性,这归因于Mg 2.5 VMoO 8和Mg 3 V 3 O 8中钒环境的相似性。在原钒酸盐中掺入氧化钼主要导致裂化产物的增加。
Zum Chemischen Transport im System Mg/Mo/O - Experimente und Modellrechnungen
作者:Udo Steiner、Werner Reichelt
DOI:10.1002/zaac.200300155
日期:2003.8
Resultaten von Modellrechnungen zumChemischenTransport und in Abhangigkeit von Ausgangsbodenkorperzusammensetzung, Transportmittelmenge und Feuchtigkeitsgehalt der Ampulle ausfuhrlich diskutiert. On the Chemical Vapour Transport in the Mg/Mo/O System - Experiments and Model Calculations Single crystals of MgMoO4 and Mg2Mo3O8 have been obtained via chemical vapour transport in a temperature gradient