2022
DOI: 10.1021/acs.jpcc.2c03892
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Effect of Introducing Thallium in Microporous Vanado-molybdate with Orthorhombic or Trigonal Structures and Catalytic Properties

Abstract: Thallium-containing mixed vanadium and molybdenum oxides have been synthesized using a microwave-assisted hydrothermal method. The pH, the nature of the metal precursors, and the use of a structuring agent were shown to be key parameters of the synthesis; depending upon these parameters, trigonal (Tri) or orthorhombic (M1) structures were obtained. Both structures have been characterized by X-ray diffraction (XRD) and scanning and transmission electron microscopies (SEM and TEM, respectively). The orthorhombic… Show more

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“…6,7 The heptagonal channels are empty or rarely occupied by other cations; although the inclusion of other elements with lone pairs of electrons in the hexagonal channels have been studied, none of them have produced a significant change the catalytic properties of M1 phases. [8][9][10][11][12] For the development of an industrial catalytic process, catalysts based on Te or Sb are thus essential. In the specific case of the oxidative dehydrogenation of ethane to ethylene, for which the choice of one or the other of the two elements has no influence, antimony has undeniable advantages over tellurium.…”
Section: Introductionmentioning
confidence: 99%
“…6,7 The heptagonal channels are empty or rarely occupied by other cations; although the inclusion of other elements with lone pairs of electrons in the hexagonal channels have been studied, none of them have produced a significant change the catalytic properties of M1 phases. [8][9][10][11][12] For the development of an industrial catalytic process, catalysts based on Te or Sb are thus essential. In the specific case of the oxidative dehydrogenation of ethane to ethylene, for which the choice of one or the other of the two elements has no influence, antimony has undeniable advantages over tellurium.…”
Section: Introductionmentioning
confidence: 99%