Molybdenum carbide is an extremely hard, refractory, ceramic material, commercially used in tool bits for cutting tools.
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3D model (JSmol)
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| ECHA InfoCard | 100.031.414 |
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PubChem CID
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CompTox Dashboard (EPA)
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| Properties | |
| 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) |
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Related Refractory ceramic materials
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Niobium carbide, tantalum carbide |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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
edit- ^ "Molybdenum Carbide Mo2C, ESPI Metals". Archived from the original on 21 July 2018. Retrieved 1 November 2016.
- ^ 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.
- ^ 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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