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Showing 1 to 13 of 13 for “"Molybdenum Carbide"”.
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Molybdenum trioxide and molybdenum carbide as promising hydrodeoxygenation catalysts for biomass conversion
Growing concerns due to rising CO2 emissions have made biomass an indispensable source of renewable fuels and chemicals. However, biomass inherently has high oxygen content, which translates to low energy density, thereby necessitating a deoxygenation step before being utilized as fuels. Recently, …
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Application of Molybdenum Carbide Catalysts for the CO2-assisted Oxidative Dehydrogenation of Ethane
… CO2. Besides metal oxides, transition metal carbides have also shown to be active for the CO2-ODH, reaching high yields of ethylene. Specifically, molybdenum carbide (MoxCy) has shown to be a highly efficient catalyst for CO2 activation and alkane dehydrogenation, demonstrating its ability to …
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Facile Synthesis of High Surface Area Molybdenum Carbide and Nitride: An Application in Support Materials for Oxygen Reduction Reaction
A method to synthesize high surface area α-MoC(1-x) without the temperature programmed reduction (TPR) of MoO3 is described. This method was then used, in conjunction with a novel in situ method to obtain highly dispersed PtMoz supported on α- MoC(1-x), to explore the suitability of such materials …
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Structure-activity relationships for the water-gas shift reaction over supported metal catalysts
… of transition admetals on the WGS catalysis by molybdenum carbide (ii) effect of residual oxygen content on the performance of molybdenum carbide for WGS (iii) effect of cobalt as a secondary metal promoter over supported Pt catalysts. ^ In the first study, we were interested in the effects of …
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CVD Grown Graphene-Based Materials: Synthesis, Characterization and Applications
… nitride heterostructures, and graphene-molybdenum carbide hybrids. The analysis of impurities in CVD grown graphene at the atomic scale and the measurement of fracture toughness of graphene will then follow. Furthermore, the potential applications of as-synthesized materials like field …
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Carbeto de molibdênio promovido por níquel como catalisador na reação de reforma seca do metano
… evaluate the promoting effect of nickel in the molybdenum carbide used as catalysts in the dry reforming of methane (DRM), tested in the temperature range of 700-850 °C. Several oxide precursors (nanostructured or not) were synthesized by the methods of coprecipitation (CP), wet impregnation and …
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Carbon Supported Metal Carbide Catalysts for the Reduction of Carbon Dioxide
… The aim of this research was to prepare a molybdenum-carbide catalyst from petroleum coke (petcoke), an abundant waste material from oil refining, with comparable activity and selectivity to other catalysts studied for the reduction of CO2 by H2. The process of converting petcoke into a …
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Catalytic Upgrading of Lignin From Biomass
… (HDO) to jet-range aromatics using molybdenum carbide (Mo2C) in a trickle-bed reactor. The study of neat lignin oil HDO elucidated two key findings: 1. The Mo2C surface is oxidized by neat lignin oil, necessitating higher reaction temperatures and 2. Higher temperatures result in …
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Characterization and Reactivity of Mo₂C
Two types of Mo₂C have been investigated: polycrystalline β-Mo₂C and single crystal α-Mo₂C. The β-Mo₂C material was synthesized via a temperature-programmed method, and then characterized using x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), CO chemisorption, and N₂ physisorption. …
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Effect of ammonia co-feeding on oxygenates over K-Mo2C in the Fischer-Tropsch synthesis
… terms of oxygenate selectivity. Transition metal carbides such as Mo2C, have been investigated under Fischer-Tropsch conditions. While the bare catalyst produces mainly methane and other hydrocarbons, upon promotion with potassium the selectivity shows a significant shift towards oxygenates. This …
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Size and composition control of specialty nanocatalysts for sustainability: Fuel cell cathode material and production of sustainable aviation fuel
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2026-12-01
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LASER-based synthesis of nanostructures for water electrolysis and sensing materials [Sintesi mediante ablazione in liquido da LASER pulsato di nanostrutture per elettrolisi di acqua e sensoristica]
Tra le tecniche di sintesi utilizzate per produrre materiali nanostrutturati, l’ ablazione laser in liquido (PLAL) è una tecnica promettente e con grandi potenzialità, non sempre pienamente espresse. Questa tecnica si basa sull’interazione tra un LASER e un target solido immerso in un liquido: …