In-situ synthesis of Ni Mo2C/Al2O3 catalysts for dry reforming of methane

Duan, Yiping; Shang, Ruishu; Zhong, Xinyan; Xie, Wei; Wang, Xingyue; Huang, Lihong

doi:10.1016/j.ijhydene.2016.10.006

Cited by 27 publications

(8 citation statements)

References 40 publications

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“…The dry reforming of methane (DRM) is a chemical process that converts CH 4 and CO 2 to syngas with a H 2 /CO ratio of 1, which can be directly used in many important chemical reactions, among them Fischer-Tropsch synthesis [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

et al. 2019

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Cenospheres from coal fly ashes were used as support in the preparation of Ni–Mg catalysts for dry reforming of methane. These materials were characterized by means of XRD, H2-temperature-programmed reduction (H2-TPR), CO2-temperature-programmed desorption (CO2-TPD), and low-temperature nitrogen sorption techniques. The cenosphere-supported catalysts showed relatively high activity and good stability in the dry reforming of methane (DRM) at 700 °C. The catalytic performance of modified cenospheres was found to depend on both Ni and Mg content. The highest activity at 750 °C and 1 atm was observed for the catalyst containing 30 wt % Mg and 10, 20, and 30 wt % Ni, yielding to CO2 and CH4 conversions of around 95%.

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Section: Introductionmentioning

confidence: 99%

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

et al. 2019

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“…The structure-directing method of molybdenum carbide particle preparation may involve other groups of organic precursors such as dyes [114], saccharides [115,116], chelates [117], urea [118,119], metal-organic frameworks [120], polymers (polyaniline, polypyrrole) [121], and volatile organic compounds (VOCs) [122]. Recently, Gavrilova et al [123] reported a Mo 2 C preparation method via thermal decomposition of molybdenum blue nanoparticles.…”

Section: Structure-directing Methodsmentioning

confidence: 99%

“…After this value was exceeded, the activity decreased despite the higher content and smaller particle size of nickel. The DRM process is carried out mainly at temperatures above 800 • C. The performance of processes at lower temperatures results in lower methane and carbon dioxide conversions, as well as a lower H 2 /CO ratio [119,123]. However, Diao et al [227] recently reported the high catalytic activity of a Ni-Mo 2 C/Al 2 O 3 catalyst at 470 • C in a catalytic bed coupled with non-thermal plasma treatment.…”

Section: Molybdenum Carbide Modified With Nickel Particlesmentioning

confidence: 99%

Metal (Mo, W, Ti) Carbide Catalysts: Synthesis and Application as Alternative Catalysts for Dry Reforming of Hydrocarbons—A Review

Czaplicka

Rogala

Wysocka

2021

IJMS

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Dry reforming of hydrocarbons (DRH) is a pro-environmental method for syngas production. It owes its pro-environmental character to the use of carbon dioxide, which is one of the main greenhouse gases. Currently used nickel catalysts on oxide supports suffer from rapid deactivation due to sintering of active metal particles or the deposition of carbon deposits blocking the flow of gases through the reaction tube. In this view, new alternative catalysts are highly sought after. Transition metal carbides (TMCs) can potentially replace traditional nickel catalysts due to their stability and activity in DR processes. The catalytic activity of carbides results from the synthesis-dependent structural properties of carbides. In this respect, this review presents the most important methods of titanium, molybdenum, and tungsten carbide synthesis and the influence of their properties on activity in catalyzing the reaction of methane with carbon dioxide.

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“…They found that Ni−Mo 2 C synthesized by carburizing a coprecipitated (CP) precursor showed higher catalytic activity in the DRM reaction than a mechanically mixed (MM) precursor. During coprecipitation, Ni was incorporated into the NiMoO 4 matrix, avoiding metal 133,138,149 ZrO 2 , 139,140 MgO, 142 La 2 O 3 , 143 and several bimetallic oxides, 144 as described here.…”

Section: Strategies To Improve the Catalytic Performance Of Mo X C In...mentioning

confidence: 99%

H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

et al. 2022

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Hydrogen, with its high energy content and environmental-friendly properties, is considered an effective energy carrier in addition to fossil fuels. Methane reforming represents a major method of hydrogen production, although the applied catalysts often suffer from coke deposition and metal sintering at high operating temperatures. Transition-metal carbides (TMCs), particularly molybdenum carbides (Mo x C), possess features such as Pt-like behaviors, affinity with oxidants such as CO2 and H2O, and a strong metal–support interaction for metal dispersion and stabilization, rendering them great prospective candidates for catalyzing the methane reforming reactions (MRRs). This review focuses on the recent applications and challenges of TMCs in MRRs, with an emphasis on the strategies to improve their performance by (1) engineering the operational conditions, (2) designing a dual M–Mo x C (M = Ni or Co etc.) active site, (3) dispersing M–Mo x C on supports, and (4) generating a M–Mo x C/MoO x C y interface in situ. The present review will provide guidance for the future design of efficient catalysts for H2 production from MRRs.

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In-situ synthesis of Ni Mo2C/Al2O3 catalysts for dry reforming of methane

Cited by 27 publications

References 40 publications

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

Metal (Mo, W, Ti) Carbide Catalysts: Synthesis and Application as Alternative Catalysts for Dry Reforming of Hydrocarbons—A Review

H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

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In-situ synthesis of Ni Mo2C/Al2O3 catalysts for dry reforming of methane

Cited by 27 publications

References 40 publications

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

Novel Nickel- and Magnesium-Modified Cenospheres as Catalysts for Dry Reforming of Methane at Moderate Temperatures

Metal (Mo, W, Ti) Carbide Catalysts: Synthesis and Application as Alternative Catalysts for Dry Reforming of Hydrocarbons—A Review

H2 Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development

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H₂ Production from Methane Reforming over Molybdenum Carbide Catalysts: From Surface Properties and Reaction Mechanism to Catalyst Development