Molybdenum carbide as catalyst in biomass derivatives conversion

Du, Xiangze; Zhang, Rui; Li, Dan; Hu, Changwei; Garcı́a, Hermenegildo

doi:10.1016/j.jechem.2022.05.014

Cited by 16 publications

(8 citation statements)

References 162 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The typical structures for molybdenum carbide include α ‐MoC, β ‐Mo 2 C, γ ‐MoC, and η ‐MoC [11–13] . The structures for molybdenum carbide, except for α ‐MoC, have similar hexagonal structures.…”

Section: Introductionmentioning

confidence: 99%

“…[11] The typical structures for molybdenum carbide include α-MoC, β-Mo 2 C, γ-MoC, and η-MoC. [11][12][13] The structures for molybdenum carbide, except for α-MoC, have similar hexagonal structures. However, their stacking sequences are distinct, which corresponds to the ABAB (β-Mo 2 C), ABCABC (η-MoC), and AAAA (γ-MoC) stacking sequence.…”

Section: Introductionmentioning

confidence: 99%

“…However, their stacking sequences are distinct, which corresponds to the ABAB (β-Mo 2 C), ABCABC (η-MoC), and AAAA (γ-MoC) stacking sequence. [12,13] The differences in structure lead to the diversity of properties. Currently, β-Mo 2 C has been widely used in the field of electrocatalytic hydrogen evolution reaction (HER).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

Zhang,

Li,

Liu

et al. 2023

ChemSusChem

View full text Add to dashboard Cite

Interface engineering is an effective strategy for improving the activity of catalysts in electrocatalytic oxygen evolution reaction (OER). Herein, Co3O4 supported on β‐Mo2C with different interfaces were investigated for electrocatalytic OER. The morphological diversity of β‐Mo2C supports allowed different Co3O4‐Mo2C interactions. Various techniques characterized the composition and microstructure of the interface in the composites. Due to the strong interaction between Co3O4 nanoparticles and β‐Mo2C nanobelts with opposing surface potentials, compact interface was observed between Co3O4 active species and β‐Mo2C nanobelt support. The compact interface enhanced the conductivity of the material and also regulated the interfacial electron redistribution of Mo and Co atoms, promoting the charge transfer process during OER. In addition, the surface loading of Co3O4 can effectively improve the hydrophilicity of the surface. β‐Mo2C has the capability in dissociating H2O molecules. Thus, an example has been carefully demonstrated for interface engineering in electrocatalytic OER.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

Zhang,

Li,

Liu

et al. 2023

ChemSusChem

View full text Add to dashboard Cite

show abstract

“…Catalytic de/hydrogenation process are important in the field of chemical engineering, especially in traditional petrochemicals, [1] advanced hydrocarbon fuels synthesis, [2] CO 2 catalytic conversion [3,4,5] and photo/electrochemical hydrogen production [6,7] (Figure 1). De/hydrogenation catalytic systems, including noble metal catalysts, transition metal oxide catalysts, and non‐metal oxide catalysts, have been widely investigated [8,9,10] …”

Section: Introductionmentioning

confidence: 99%

“…De/hydrogenation catalytic systems, including noble metal catalysts, transition metal oxide catalysts, and non-metal oxide catalysts, have been widely investigated. [8,9,10] Over the past 20 years, some oil refining catalysts such as Pt, [11][12][13] Pd, [14][15][16] Ru [17][18][19] and Rh [20][21][22] have been extensively used in de/hydrogenation and biomass upgrading. For example, Pt-based catalysts can be used for the selective hydrogenation of unsaturated alcohols in crotonaldehyde, [13] and Ru-based catalysts can be used in Water-Gas Shift Reaction, a chemical process in which dehydrogenation is an important elementary reaction.…”

Section: Introductionmentioning

confidence: 99%

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

Jiang,

Wu,

Liu

et al. 2023

ChemCatChem

View full text Add to dashboard Cite

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.

show abstract

In‐Situ Dynamic Carburization of Mo Oxide with Unprecedented High CO Formation Rate in Reverse Water‐Gas Shift Reaction

Du,

Li,

Xin

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

In‐situ construction of active structure under reaction conditions is highly desired but still remains challenging in many important catalytic processes. Herein, we observe structural evolution of molybdenum oxide (MoOx) into highly active molybdenum carbide (MoCx) during reverse water‐gas shift (RWGS) reaction. Surface oxygen atoms in various Mo‐based catalysts are removed in H2‐containing atmospheres and then carbon atoms can accumulate on surface to form MoCx phase with the RWGS reaction going on, both of which are enhanced by the presence of intercalated H species or Pt‐dopants in MoOx. The structural evolution from MoOx to MoCx is accompanied by enhanced CO2 conversion, which is positively correlated with the surface C/Mo ratio but negatively with the surface O/Mo ratio. As a result, an unprecedented CO formation rate of 7544.6 mmol·gcatal‐1·h‐1 at 600 °C has been achieved over in‐situ carbonized H‐intercalated MoO3 catalyst, which is even higher than those from noble metal catalysts. During 100 h stability test only a minimal deactivation rate of 2.3% is observed.

show abstract

Molybdenum carbide as catalyst in biomass derivatives conversion

Cited by 16 publications

References 162 publications

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

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

In‐Situ Dynamic Carburization of Mo Oxide with Unprecedented High CO Formation Rate in Reverse Water‐Gas Shift Reaction

Contact Info

Product

Resources

About

Molybdenum carbide as catalyst in biomass derivatives conversion

Cited by 16 publications

References 162 publications

Co3O4 Supported on β‐Mo2C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

Co3O4 Supported on β‐Mo2C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

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

In‐Situ Dynamic Carburization of Mo Oxide with Unprecedented High CO Formation Rate in Reverse Water‐Gas Shift Reaction

Contact Info

Product

Resources

About

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction

Co₃O₄ Supported on β‐Mo₂C with Different Interfaces for Electrocatalytic Oxygen Evolution Reaction