Hydrothermal Synthesis of Cubic Mesostructured Vanadium–Phosphorus Oxide

Hatayama, Hiroshi; Misono, Makoto; Taguchi, Akira; Mizuno, Noritaka

doi:10.1246/cl.2000.884

Cited by 12 publications

(6 citation statements)

References 19 publications

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“…After the first attempts failed to remove the surfactants from the mesostructured transition-metal oxides, ,, it took another 2 years before the first mesoporous transition-metal oxide was synthesized, which was notably not one of the redox-active ones, but titania . Also in the following, mostly relatively redox-stable compositions have been synthesized, such as zirconium-based materials 10,14 or vanadium (phosphorus) oxide, niobium oxide , and tantalum oxide for a zirconium-based mesostructure.…”

Section: Compositionsmentioning

confidence: 99%

“…An interesting type of material from a catalytic point of view could be the vanadium-based systems, especially the vanadium phosphates. However, although several attempts have been made, it appears that no thermally stable well-developed ordered mesoporous vanadia or vanadium phosphate has been synthesized as yet. ,− However, a mesostructured vanadium phosphate could be an interesting precursor for the VPO catalyst used for butane oxidation to maleic anhydride …”

Section: Compositionsmentioning

confidence: 99%

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Non-siliceous Mesostructured and Mesoporous Materials

2001

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Siliceous ordered mesoporous materials are well-investigated and -covered by several excellent reviews. Less work has been directed to non-siliceous materials, although these could have more wide-ranging applications. This review will address the synthesis and properties of non-siliceous ordered mesoporous materials, covering oxidic, non-oxidic, metallic, and pure carbon frameworks. Organometallic frameworks, which are typically not synthesized in the presence of surfactants, are beyond the scope of this paper.

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Section: Compositionsmentioning

confidence: 99%

Section: Compositionsmentioning

confidence: 99%

Non-siliceous Mesostructured and Mesoporous Materials

2001

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“…Furthermore, Hatayama et al . reported the synthesis of a well-ordered mesostructured cubic Ia 3̄ d vanadium phosphorus oxide, which was, however, again not stable upon template removal. To our knowledge, the cubic Im 3 n mesoporous TiO 2 described by Stucky and co-workers in 1998 remains until now the only template-free 3-D mesophase reported. , …”

Section: Introductionmentioning

confidence: 99%

Porous Mesostructured Zirconium Oxophosphate with Cubic (Ia3̄d) Symmetry

et al. 2002

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We report the synthesis and characterization of a mesoporous zirconium oxophosphate with a cubic Ia3 hd symmetry. The ordered porous material was obtained by supramolecular self-assembly of a specific cationic surfactant combined with zirconium sulfate as inorganic precursor. A systematic investigation of the effects of initial reagent ratios and synthesis procedures is reported. Both the as-prepared and the template-free cubic porous zirconium oxophosphate materials were characterized by X-ray diffraction and transmission electron microscopy. The template-free material was additionally characterized by N 2 sorption. The removal of the template was studied by thermogravimetry/differential thermal analysis coupled with mass spectrometry and in situ high-temperature XRD. In addition, pyridine sorption-FTIR experiments were performed to evaluate the Lewis and Brønsted acidity.

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“…A highly crystalline precursor was formed by Mizuno and coworkers (40,61) with cetyltrimethylammonium chloride and vanadium metal as a reducing agent. Abe and coworkers (60) and Doi and coworkers (58) prepared hexagonal vanadium phosphate structures with a V:P ratio of 2:1.…”

Section: Novel Precursor Synthesismentioning

confidence: 99%