Molybdenum carbide

Molybdenum carbide
Identifiers
CAS Number
  • MoC: 12011-97-1
  • Mo2C: 12069-89-5 checkY
3D model (JSmol)
  • MoC: Interactive image
  • Mo2C: Interactive image
ChemSpider
  • Mo2C: 9162545
ECHA InfoCard 100.031.414 Edit this at Wikidata
EC Number
  • MoC: 234-569-3
  • Mo2C: 235-115-7
PubChem CID
  • MoC: 71623305
  • Mo2C: 10987348
CompTox Dashboard (EPA)
  • DTXSID10923231 Edit this at Wikidata
InChI
  • MoC: InChI=1S/C.Mo
  • Mo2C: InChI=1S/C.2Mo
  • MoC: [C]=[Mo]
  • Mo2C: C(=[Mo])=[Mo]
Properties
Chemical formula
 MoC and Mo2C
Molar mass 107,961 g/mol (MoC) and 203,911 g/mol (Mo2C)
Density 8.90 g/cm3
Melting point 2,687 °C (4,869 °F; 2,960 K)
Related compounds
Related Refractory ceramic materials
 Niobium carbide, tantalum carbide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references
Chemical compound

Molybdenum carbide is an extremely hard, refractory, ceramic material, commercially used in tool bits for cutting tools.

There are at least three reported phases of molybdenum carbide: γ-MoC, β-Mo2C, and γ'. The γ phase is structurally identical to tungsten carbide.[1]

β-Mo2C has been suggested as a catalyst for carbon dioxide hydrogenation.[2] The γ' phase forms by combining the elements at relatively low temperatures, and transforms to the γ phase at 800 °C.[3]

References

  1. ^ "Molybdenum Carbide Mo2C, ESPI Metals". Archived from the original on 21 July 2018. Retrieved 1 November 2016.
  2. ^ Zhou, Hui; Chen, Zixuan; Kountoupi, Evgenia; Tsoukalou, Athanasia; Abdala, Paula M.; Florian, Pierre; Fedorov, Alexey; Müller, Christoph R. (2021-09-17). "Two-dimensional molybdenum carbide 2D-Mo2C as a superior catalyst for CO2 hydrogenation". Nature Communications. 12 (1): 5510. Bibcode:2021NatCo..12.5510Z. doi:10.1038/s41467-021-25784-0. ISSN 2041-1723. PMC 8448824. PMID 34535647.
  3. ^ KuO, K.; HÄGG, G. (1952). "A New Molybdenum Carbide". Nature. 170 (4319): 245–246. Bibcode:1952Natur.170..245K. doi:10.1038/170245a0. ISSN 0028-0836. S2CID 4161374.


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