Synthesis and characterization of molybdenum carbide catalysts on different carbon supports

Meng, Shihang; Xue, Xiaoxiao; Weng, Yujing; Jiang, Siyi; Li, Guang; Sun, Qi

doi:10.1016/j.cattod.2022.04.020

Cited by 10 publications

(6 citation statements)

References 34 publications

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“…Loaded molybdenum carbide was successfully synthesized using the CHRe method. [20] With this method, the carrier can provide the carbon source while retaining the skeleton and porous structure of the solid carbon carrier to disperse the molybdenum source, or new structures can be generated that can have an impact on the adsorption and catalytic properties of molybdenum carbide. However, such methods can still produce polymerized carbon to cover the molybdenum carbide surface if too much carbon carrier is used.…”

Section: Carbothermal Hydrogen Reduction Methodsmentioning

confidence: 99%

Progress in the Synthesis and Catalytic Properties of Molybdenum Carbide Materials

Li¹,

Wang²

2023

AJST

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Molybdenum carbide is a new type of material with excellent physical and chemical properties due to the intercalation structure formed by the insertion of carbon atoms, which not only has the properties of a functional material, but also has excellent catalytic properties in the fields of hydrogenation and hydrogen production reactions. This paper reviews the properties and synthesis methods of molybdenum carbide, systematically introduces the advantages and disadvantages of different methods, and finally summarizes the applications of molybdenum carbide in catalytic hydrogenation, catalytic hydrogen production and photoelectric catalysis, and analyzes the current challenges and future directions of molybdenum carbide materials.

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Section: Carbothermal Hydrogen Reduction Methodsmentioning

confidence: 99%

Progress in the Synthesis and Catalytic Properties of Molybdenum Carbide Materials

Li¹,

Wang²

2023

AJST

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“…Meng et al. developed molybdenum carbide loaded with various carbon carriers that have the porous structure and carbon skeleton of traditional carbon carriers, which can impact the adsorption characteristics and surface physicochemical features of molybdenum carbide [121] . Chen et al.…”

Section: Morphology and Structure Engineeringmentioning

confidence: 99%

“…Meng et al developed molybdenum carbide loaded with various carbon carriers that have the porous structure and carbon skeleton of traditional carbon carriers, which can impact the adsorption characteristics and surface physicochemical features of molybdenum carbide. [121] Chen et al developed a self-assembly strategy for lamellar molybdenum carbides, which not only simplified the molybdenum carbide preparation process and decreased the energy cost of catalyst preparation, but also benefited the active site density control and exposure state of the catalyst's Mo-terminals. [44] Significantly, much attentions should be paid to the phase states (alpha and beta) of the molybdenum carbide while morphology engineering.…”

Section: Morphology and Structure Engineeringmentioning

confidence: 99%

Molybdenum Carbide for Catalytic De/hydrogenation Process: Synthesis, Modulation and Applications

Jiang,

Wu,

Liu

et al. 2023

ChemCatChem

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The catalytic de/hydrogenation process is important in the fields of petrochemical refining, fuel synthesis, drug synthesis, CO2 conversion, and hydrogen synthesis, where the construction of low‐cost and high‐efficiency de/hydrogenation catalysts attracting significant attentions. The molybdenum carbide (MoxC), as a non‐noble transition metal carbide catalyst, has been widely investigated for hydrogen activation. Herein, the research progress and achievements of molybdenum carbide for catalytic de/hydrogenation are reviewed. Additional attention was paid to the structure and crystal phase of molybdenum carbide, and various modification strategies related to the catalytic activity regulation are summarized. Finally, the application prospect of molybdenum carbide catalysts is also discussed. This review provides a framework reference for further understanding the design and utilization of molybdenum carbide catalysts for catalytic de/hydrogenation and the key research problems to be addressed.

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“…Secondly, there is still a lack of in-depth research about the structure of molybdenum carbide, and the difficulty lies in identifying the active center of the material. There is a need to further identify the site and physicochemical properties of the catalytic active center by combining computational [107] and experimental methods [108]. For example, the relationship between energy band structure, density of electronic states, and catalytic activity can guide more effective modulation of the activity of the catalytic site [109].…”

Section: Conclusion and Prospectsmentioning

confidence: 99%

Recent Progress on Molybdenum Carbide-Based Catalysts for Hydrogen Evolution: A Review

Zhou,

Jia,

Wang

et al. 2023

Sustainability

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Hydrogen is an ideal alternative energy for fossil fuels to solve aggravating environmental and energy problems. Electrocatalytic hydrogen evolution reaction (HER) driven by renewable electricity (sunlight, wind, tide, etc.) is considered to be one of the most promising approaches for hydrogen production. However, its large-scale applications are greatly limited by the use of noble platinum (Pt) group electrocatalysts. As an earth-abundant/non-noble HER catalyst, molybdenum carbide (MoxC: MoC or Mo2C) has attracted extensive attention in the field of sustainable hydrogen production due to its excellent Pt-like catalytic activity, low cost, high chemical stability, and natural abundance. In this review, the progress on the strategies for optimizing the catalytic activity of MoxC is summarized, including optimization of synthesis methods, composites with carbon material, non-precious metal doping, transition metal doping, construction of the heterogeneous structure, etc. Among them, the importance of sulphur-doping, Ni-doping, and heterophase structure on molybdenum carbide-based catalysts for enhancement of HER activity has been highlighted. In addition, molybdenum carbide-based bi-functional catalysts are presented for the application in full water splitting. Finally, several effective strategies for molybdenum carbide-based catalyst design are concluded, and challenges remained in electrocatalytic water splitting are raised. Future development trends and perspectives for this promising material are also discussed.

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Synthesis and characterization of molybdenum carbide catalysts on different carbon supports

Cited by 10 publications

References 34 publications

Progress in the Synthesis and Catalytic Properties of Molybdenum Carbide Materials

Progress in the Synthesis and Catalytic Properties of Molybdenum Carbide Materials

Molybdenum Carbide for Catalytic De/hydrogenation Process: Synthesis, Modulation and Applications

Recent Progress on Molybdenum Carbide-Based Catalysts for Hydrogen Evolution: A Review

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