Oxidative dehydrogenation of ethane on the α and β phases of NiMoO4

Kaddouri, A.; Anouchinsky, R.; Mazzocchia, C.; Madeira, Luís M.; Portela, M.F.

doi:10.1016/s0920-5861(98)00008-x

Cited by 40 publications

(18 citation statements)

References 13 publications

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“…Nickel molybdate catalysts have been reported as oxidative dehydrogenation catalysts for the light paraffins ethane [13], propane [14][15][16][17] and n-butane [18][19][20]. There are no reports, however, on the ODH of higher paraffins with NiMoO 4 , excluding a single report on the ODH of n-hexane [21].…”

Section: Introductionmentioning

confidence: 99%

The Oxidative Dehydrogenation of n-Hexane over a β-NiMoO4 Catalyst

2011

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The oxidative dehydrogenation of n-hexane over b-NiMoO 4 catalysts was performed in a fixed bed continuous flow reactor. Catalytic testing was done below and above the flammability limits for n-hexane and the effect of reaction conditions was examined to optimize hexene selectivity. The contact times (0.61-2.4 s), n-hexane/oxygen molar ratios and nitrogen dilution (31-60%) were varied. The highest selectivity to total hexenes obtained was 54.7% which was made up of 27.4% 1-hexene, 25.0% trans-2-hexene and 2.3% cis-2-hexene. These selectivities were obtained at a fuel/O 2 ratio of 2.2, a contact time of 1.0 s and 43% nitrogen dilution.

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Section: Introductionmentioning

confidence: 99%

The Oxidative Dehydrogenation of n-Hexane over a β-NiMoO4 Catalyst

2011

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“…It is known from the literature that both α and β‐NiMoO 4 are isometric in space group C2/m with same monoclinic crystal structure but the cordination of Mo 6+ ions is octahedral in α‐NiMoO 4 whereas it is tertrahedral in β‐NiMoO 4 . Due to this reason the lattice parameters, structural feature, chemical enviroment and the electronic structure of a unit cell are different between them . The α‐phase has double ionized vacancies while the β‐phase has singlely ionized vacancies .…”

Section: Introductionmentioning

confidence: 99%

Phase and Shape Dependent Non-enzymatic Glucose Sensing Properties of Nickel Molybdate

2016

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In this work, we demonstrate a facile low temperature synthesis approach to tune a and b-NiMoO 4 by controlling the urea concentration. Comparative non-enzymatic electrochemical glucose sensing properties of NiMoO 4 nanomaterials with a and b phases have been studied in detail. The mechanisms related to the phase and morphology transformation from a-NiMoO 4 nanoparticles to b-NiMoO 4 nanosheets are proposed and discussed by thoroughly characterizing the as-pre-pared materials. It is observed that the a-NiMoO 4 exhibits sensitivity of 0.208 mAmM À1 cm À2 whereas sensitivity of 1.057 mAmM À1 cm À2 is achieved for the b-NiMoO 4 . Thus, it is confirmed that b-NiMoO 4 nanosheets perform five times high glucose sensing performance as compared to the a-NiMoO 4 nanoparticles and demonstrates its application as high-performance glucose sensor.

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“…The family of metal molybadates is one of the most promising examples of the mixed metal oxides, which have extensively studied in recent years. Nickel molybadate (NiMoO 4 ) possesses the various applications in catalyses such as oxidative dehydrogenation of light alkanes [1,2], hydrodesulfurization, hydrodenitrogenation and etc., [3,4]. Several methods have been taken to synthesize this metal oxide such as sonochemical, hydrothermal, sol-gel, chemical precipitation methods [5][6][7].…”

Section: Introductionmentioning

confidence: 99%

A Simplified Microwave-Assisted Synthesis of NiMoO4 Nanoparticles by Using Organic Driving Agent and Study of Photocatalytic Activity

Tadjarodi

Pradehkhorram

Imani

et al. 2014

Proceedings of the 18th International Electronic Conference on Synthetic Organic Chemistry

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Organic reagents can be used as a driving agent to synthesize a wide spectrum of nanomaterials.In this work, nickel molybdate (NiMoO 4 ) nanoparticles with a pure monoclinic crystalline phase were synthesized by using a facile one step microwave heating technique in solid state within a few minutes. Ammonium hepta molybdate tetrahydrate and nickel nitrate hexahydrate as initial materials were mixed to each other without any solvent and put into a domestic microwave oven with one step scheduled run. We introduced an alternative route of power input into chemical reactions in solid state by using microwave radiation. In fact, the obtained results can draw an outlook of the effectiveness and feasibility of this technique for the synthesis of various nanoparticles. Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscopy (SEM) and energy dispersion of x-ray spectrometry (EDX) were used to characterize the prepared product. The study of photocatalytic behaviour of the resulting product indicated a high capability on the removal of Methylene Blue (MB) from aqueous solution.

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Oxidative dehydrogenation of ethane on the α and β phases of NiMoO4

Cited by 40 publications

References 13 publications

The Oxidative Dehydrogenation of n-Hexane over a β-NiMoO4 Catalyst

The Oxidative Dehydrogenation of n-Hexane over a β-NiMoO4 Catalyst

Phase and Shape Dependent Non-enzymatic Glucose Sensing Properties of Nickel Molybdate

A Simplified Microwave-Assisted Synthesis of NiMoO4 Nanoparticles by Using Organic Driving Agent and Study of Photocatalytic Activity

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