Oxidative dehydrogenation of ethane over iron phosphate catalysts

Miller, James E.; Gonzales, Mary M.; Evans, Lindsey; Sault, Allen G.; Zhang, Conrad; Rao, Rajeev S.; Whitwell, George; Maiti, Amitesh; King‐Smith, Dominic

doi:10.1016/s0926-860x(02)00070-4

Cited by 35 publications

(13 citation statements)

References 19 publications

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“…• Methane oxidation to syngas: [21] , and also to oxidise ethane to ethylene when using O 2 as an oxidant [22] and oxygenated products by O 2 in the presence of H 2 and N 2 O [23] .…”

Section: Case Of Methanementioning

confidence: 99%

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

Védrine

2016

Journal of Energy Chemistry

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This review paper aims at analysing the state of the art for partial oxidation and oxidative dehydrogenation (ODH) reactions of lower alkanes C 1 -C 6 into olefins and oxygenated products (aldehydes, anhydrides, carboxylic acids) on metal oxide catalysts with cations of variable oxidation state, such as Mo and V in particular. Key parameters to be met by the catalysts, such as their redox properties, their structural aspects, active sites composed of ensembles of atoms isolated one from the others, mechanisms of reactions, are discussed. Main features of the different reactions of C 1 -C 6 alkanes and catalysts are analysed and their generalisation for determining more active and more selective catalysts is attempted. Prospective views for the future of the domain are proposed.

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“…• Methane oxidation to syngas: [21] , and also to oxidise ethane to ethylene when using O 2 as an oxidant [22] and oxygenated products by O 2 in the presence of H 2 and N 2 O [23] .…”

Section: Case Of Methanementioning

confidence: 99%

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

Védrine

2016

Journal of Energy Chemistry

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“…1 These catalysts tend to show very high selectivity to ethene at high ethane conversion because the catalysts themselves do not have high intrinsic catalytic oxidation ability, which is the reason why the catalyst needs high reaction temperatures. The second catalysts, representatively Ni-Nb-O, 10 have recently emerged and their catalytic activity apparently depends on the nature and state of group 8 elements 11 since simple oxides of group 8 elements are usually very active for ethane oxidation but non-selective.…”

Section: Introductionmentioning

confidence: 99%

An orthorhombic Mo₃VO_xcatalyst most active for oxidative dehydrogenation of ethane among related complex metal oxides

Konya

Katou

Murayama

et al. 2013

Catal. Sci. Technol.

125

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Four distinct structural types (orthorhombic, trigonal, tetragonal and amorphous) of Mo 3 VO x catalyst were each synthesized by a hydrothermal method as a single phase, characterized structurally and tested for oxidative dehydrogenation of ethane. A common structural feature of the catalysts is that the materials are a layer-type structure and constructed with pentagonal {Mo 6 O 21 } units. The arrangement of the pentagonal units can form heptagonal channels to create different structural features. The orthorhombic Mo 3 VO x catalyst has microporosity due to the open heptagonal channels adsorbing nitrogen molecules and showed the highest activity for the reaction among four distinct catalysts. Furthermore, this phase appeared to be most active, currently, compared to other complex metal oxide catalysts reported. An observed positive relation between the microporosity and the oxidation activity suggests that the catalytic oxidation takes place at the heptagonal channels.

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“…C rystalline and amorphous iron phosphate materials are being developed for a variety of technological applications. For example, amorphous and crystalline FePO 4 and similar compounds have been developed as catalysts, 1 and the catalytic performance is affected by reduction to Fe 2 P 2 O 7 2 . LiFePO 4 has been proposed as a cathode material for rechargeable Li‐ion batteries 3,4 and the dilithiation process can form disordered products that are sometimes difficult to characterize by conventional diffraction techniques.…”

Section: Introductionmentioning

confidence: 99%

A Raman Study of Iron–Phosphate Crystalline Compounds and Glasses

Zhang

Brow

2011

Journal of the American Ceramic Society

170

113

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Ferrous and ferric phosphate crystalline compounds and glasses were studied using Raman spectroscopy. A comparison of the spectra from crystalline and glassy ortho-, pyro-, and metaphosphates indicates that similar phosphate anions constitute the structures of the respective materials, and some information about the compositional dependence of the phosphate-site distributions in the glasses can be gleaned from relative peak intensities. A correlation exists between the average P-O bond distance and the Raman peak frequencies in the crystalline compounds, and this correlation is used to provide information about the structures of the iron phosphate glasses. For example, the average P-O bond distance is estimated to decrease from about 1.57 Å for iron metaphosphate glasses (O/PB3.0) to 1.54 Å for iron orthophosphate glasses (O/PB4.0). These bond distances are in good agreement with those reported from diffraction studies of similar glasses.

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Oxidative dehydrogenation of ethane over iron phosphate catalysts

Cited by 35 publications

References 19 publications

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

An orthorhombic Mo₃VO_xcatalyst most active for oxidative dehydrogenation of ethane among related complex metal oxides

A Raman Study of Iron–Phosphate Crystalline Compounds and Glasses

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Oxidative dehydrogenation of ethane over iron phosphate catalysts

Cited by 35 publications

References 19 publications

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

Heterogeneous catalytic partial oxidation of lower alkanes (C 1 –C 6 ) on mixed metal oxides

An orthorhombic Mo3VOxcatalyst most active for oxidative dehydrogenation of ethane among related complex metal oxides

A Raman Study of Iron–Phosphate Crystalline Compounds and Glasses

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An orthorhombic Mo₃VO_xcatalyst most active for oxidative dehydrogenation of ethane among related complex metal oxides