Multicomponent Thin Film Molybdate Catalysts for the Selective Oxidation of 1,3-Butadiene

Zou, Joe Y; Schrader, Glenn L.

doi:10.1006/jcat.1996.0229

Cited by 45 publications

(26 citation statements)

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“…The two doublets Mo3d 5/2 –Mo3d 3/2 with the Mo3d 5/2 ‐binding energy peaks at 230.0 and 232.9 eV on the monometallic 10% Mo/A catalyst could be attributed to Mo in Mo 4+ and Mo 6+ states, respectively . For the bimetallic 5% NiMo/A catalyst, the energy peaks at 229.8 and 231.9 eV were also assigned to Mo 4+ and Mo 6+ , and the peak at 234.1 eV was attributed to NiMoO 4 . For the bimetallic 10% NiMo/A catalyst, the binding energies of Mo 4+ , Mo 6+ , and NiMoO 4 were 229.8, 232.3, and 233.7 eV, respectively.…”

Section: Resultssupporting

confidence: 82%

The Conversion of Jatropha Oil into Jet Fuel on NiMo/Al‐MCM‐41 Catalyst: Intrinsic Synergic Effects between Ni and Mo

Hui

et al. 2019

Energy Tech

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Although there is much work focused on the conversion of biomass oil into a fuel on bimetallic Ni‐ and Mo‐based catalysts, the intrinsic synergic effects of Ni and Mo have not been revealed clearly. Herein, Mo/Al‐MCM‐41, Ni/Al‐MCM‐41, and NiMo/Al‐MCM‐41 catalysts are synthesized and used for the catalytic conversion of jatropha oil into jet fuel through a one‐step process. The molecular weight range (150–180 Da) of the jet fuel, obtained with a high yield of 63 wt% over 10% NiMo/Al‐MCM‐41 catalyst, is almost the same as that of the commercial aviation fuel of China. A bimetallic catalyst shows not only an excellent activity but also a high carbon‐resistance nature compared with a monometallic catalyst. Characterizations using X‐ray diffraction, Raman spectroscopy, H2‐temperature‐programmed reduction, high‐angle annular dark‐field detector high‐resolution transmission electron microscopy (HADDF‐TEM)‐mapping, and in situ X‐ray photoelectron spectroscopy reveal that the formation of elliptical particles containing both Ni and Mo species and of appropriate acid sites with a proper density on the NiMo/Al‐MCM‐41 catalyst would result in a high yield of the jet fuel. Moreover, the electron transfer from Ni to Mo by a surface synergetic oxygen vacancy of Ni–Mo on the NiMo/Al‐MCM‐41 catalyst might be responsible for the excellent anti‐coke ability.

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Section: Resultssupporting

confidence: 82%

The Conversion of Jatropha Oil into Jet Fuel on NiMo/Al‐MCM‐41 Catalyst: Intrinsic Synergic Effects between Ni and Mo

Hui

et al. 2019

Energy Tech

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“…Transition metal molybdates are attractive compounds because of their structural, magnetic, and catalytic properties [1][2][3][4][5][6][7][8][9][10][11]. They are especially important components of industrial catalysts.…”

Section: Introductionmentioning

confidence: 99%

Transition metal tetramolybdate dihydrates MMo4O13·2H2O (M=Co,Ni) having a novel pillared layer structure

Eda

Ohshiro

Nagai

et al. 2009

Journal of Solid State Chemistry

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a b s t r a c tHydrothermal synthesis in the M/Mo/O (M ¼ Co,Ni) system was investigated. Novel transition metal tetramolybdate dihydrates MMo 4 O 13 Á 2H 2 O (M ¼ Co,Ni), having an interesting pillared layer structure, were found. The molybdates crystallize in the triclinic system with space group PÀ1, Z ¼ 1 with unit cell (6)1 for NiMo 4 O 13 Á 2H 2 O The structure is composed of two-dimensional molybdenum-oxide (2D Mo-O) sheets pillared with CoO 6 octahedra. The 2D Mo-O sheet is made up of infinite straight ribbons built up by corner-sharing of four molybdenum octahedra (two MoO 6 and two MoO 5 OH 2 ) sharing edges. These infinite ribbons are similar to the straight ones in triclinic-K 2 Mo 4 O 13 having 1D chain structure, but are linked one after another by corner-sharing to form a 2D sheet structure, like the twisted ribbons in BaMo 4 O 13 Á 2H 2 O (or in orthorhombic-K 2 Mo 4 O 13 ) are.

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“…Commercial molybdenum trioxide and ammonium molybdate show characteristic peaks previously reported in the literature;28,38 however, sharp diffraction peaks corresponding to commercial molybdenum trioxide and ammonium molybdate were not observed in spectra for 0.25g-Mo catalyst. eV, at the higher end of the binding energies reported for Mo(VI) oxides [39][40][41]. Because the nature of the active catalyst could not be determined by wide-angle X-ray diffraction, XPS analysis was used to gain information on the state of the Mo species.…”

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confidence: 99%

Molybdenum incorporated mesoporous silica catalyst for production of biofuels and value-added chemicals via catalytic fast pyrolysis

et al. 2015

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ARTICLE This journal isProduction of value-added furans and phenols from biomass through catalytic fast pyrolysis of pine using molybdenum supported on KIT-5 mesoporous silica support was explored.Catalysts containing different loadings of molybdenum were synthesized and characterized by X-ray diffraction, physisorption and chemisorption analysis, various electron microscopic techniques and X-ray photoelectron spectroscopy. Characterization studies indicate that molybdenum is homogeneously distributed over the KIT-5 silica support in a +6 oxidation state. Fast pyrolysis of pine using molecular beam mass spectrometry with fresh Mo catalyst preferentially produced furans and phenols over conventionally observed aromatic hydrocarbons. Detailed investigation of model biopolymers indicates that the furans originated from the carbohydrate portion of the biomass and the phenols emerged predominantly from the lignin portion of biomass. Results obtained from MBMS were complemented using pyrolytic-GCMS.

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Multicomponent Thin Film Molybdate Catalysts for the Selective Oxidation of 1,3-Butadiene

Cited by 45 publications

References 0 publications

The Conversion of Jatropha Oil into Jet Fuel on NiMo/Al‐MCM‐41 Catalyst: Intrinsic Synergic Effects between Ni and Mo

The Conversion of Jatropha Oil into Jet Fuel on NiMo/Al‐MCM‐41 Catalyst: Intrinsic Synergic Effects between Ni and Mo

Transition metal tetramolybdate dihydrates MMo4O13·2H2O (M=Co,Ni) having a novel pillared layer structure

Molybdenum incorporated mesoporous silica catalyst for production of biofuels and value-added chemicals via catalytic fast pyrolysis

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