Vanadium nitride

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Vanadium nitride
NaCl polyhedra.png
Names
IUPAC name
Vanadium nitride
Other names
Vanadium(III) nitride
Identifiers
24646-85-3 N
PubChem 90570
Properties
VN
Molar mass 64.9482 g/mol
Appearance black powder
Density 6.13 g/cm3
Melting point 2,050 °C (3,720 °F; 2,320 K)
Structure
cubic, cF8
Fm3m, No. 225
Hazards
EU Index Not listed
Flash point Non-flammable
Related compounds
Other anions
vanadium(III) oxide, vanadium carbide
Other cations
titanium nitride, chromium(III) nitride, niobium nitride
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Infobox references

Vanadium nitride, VN, is a chemical compound of vanadium and nitrogen.

Vanadium nitride is formed during the nitriding of steel and increases wear resistance.[1] Another phase, V2N, also referred to as vanadium nitride, can be formed along with VN during nitriding.[2] VN has a cubic, rock salt structure. There is also a low temperature form which contains V4 clusters.[3] The low temperature phase results from a dynamic instability, when the energy of vibrational modes in the high-temperature NaCl-structure phase, are reduced below zero. [4]

It is a strong-coupled superconductor.[5] Nanocrystalline vanadium nitride has been claimed to have potential for use in supercapacitors.[6]

References[edit]

  1. ^ Munozriofano, R; Casteletti, L; Nascente, P (2006). "Study of the wear behavior of ion nitrided steels with different vanadium contents". Surface and Coatings Technology 200 (20–21): 6101. doi:10.1016/j.surfcoat.2005.09.026. 
  2. ^ Thermo reactive diffusion vanadium nitride coatings on AISI 1020 steel U.Sen Key Engineering Materials vols 264-268 (2004),577
  3. ^ Kubel, F.; Lengauer, W.; Yvon, K.; Junod, A. (1988). "Structural phase transition at 205 K in stoichiometric vanadium nitride". Physical Review B 38 (18): 12908. doi:10.1103/PhysRevB.38.12908. 
  4. ^ A. B. Mei, O. Hellman, N. Wireklint, C. M. Schlepütz, D. G. Sangiovanni, B. Alling, A. Rockett, L. Hultman, I. Petrov, and J. E. Greene (2015). "Dynamic and structural stability of cubic vanadium nitride". Physical Review B 91 (5): 054101. doi:10.1103/PhysRevB.91.054101. 
  5. ^ Zhao, B. R.; Chen, L.; Luo, H. L.; Mullin, D. P. (1984). "Superconducting and normal-state properties of vanadium nitride". Physical Review B 29 (11): 6198. doi:10.1103/PhysRevB.29.6198. 
  6. ^ Choi, D.; Blomgren, G. E.; Kumta, P. N. (2006). "Fast and Reversible Surface Redox Reaction in Nanocrystalline Vanadium Nitride Supercapacitors". Advanced Materials 18 (9): 1178. doi:10.1002/adma.200502471.