vanadium nitride

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| Watchedfields = changed

| verifiedrevid = 435770130

| ImageFile = NaCl polyhedra.png

| ImageSize =

| IUPACName = Vanadium nitride

| OtherNames = Vanadium(III) nitride

|Section1={{Chembox Identifiers

| CASNo_Ref = {{cascite|correct|CAS}}

| CASNo = 24646-85-3

| PubChem = 90570

| EC_number = 246-382-4

| StdInChI=1S/N.V

| StdInChIKey = SKKMWRVAJNPLFY-UHFFFAOYSA-N

}}

|Section2={{Chembox Properties

| Formula = VN

| MolarMass = 64.9482 g/mol

| Appearance = black powder

| Density = 6.13 g/cm³

| MeltingPtC = 2050

| BoilingPt =

| Solubility =

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|Section3={{Chembox Structure

| CrystalStruct = cubic, cF8

| SpaceGroup = Fm3m, No. 225

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|Section7={{Chembox Hazards

| ExternalSDS =

| GHSPictograms = {{GHS07}}

| GHSSignalWord = Warning

| HPhrases = {{H-phrases|302|312|332}}

| PPhrases = {{P-phrases|261|264|270|271|280|301+312|302+352|304+312|304+340|312|322|330|363|501}}

| MainHazards =

| NFPA-H =

| NFPA-F =

| NFPA-R =

| NFPA-S =

| FlashPt = Non-flammable

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|Section8={{Chembox Related

| OtherAnions = vanadium(III) oxide, vanadium carbide

| OtherCations = titanium nitride, chromium(III) nitride, niobium nitride

}}

}}

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

Vanadium nitride is formed during the nitriding of steel and increases wear resistance.{{cite journal|doi=10.1016/j.surfcoat.2005.09.026|title=Study of the wear behavior of ion nitrided steels with different vanadium contents|year=2006|author1=Munozriofano, R |author2=Casteletti, L |author3=Nascente, P |journal=Surface and Coatings Technology|volume=200|pages=6101|issue=20–21}} Another phase, V₂N, also referred to as vanadium nitride, can be formed along with VN during nitriding.Thermo reactive diffusion vanadium nitride coatings on AISI 1020 steel U.Sen Key Engineering Materials vols 264-268 (2004),577 VN has a cubic, rock-salt structure. There is also a low-temperature form, which contains V₄ clusters.{{cite journal|doi=10.1103/PhysRevB.38.12908|title=Structural phase transition at 205 K in stoichiometric vanadium nitride|year=1988|author1=Kubel, F. |author2=Lengauer, W. |author3=Yvon, K. |author4=Junod, A. |journal=Physical Review B|volume=38|pages=12908–12912|issue=18|pmid=9946260 |bibcode=1988PhRvB..3812908K }}

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.{{cite journal|doi=10.1103/PhysRevB.91.054101|title=Dynamic and structural stability of cubic vanadium nitride |year=2015|author1=A. B. Mei |author2=O. Hellman |author3=N. Wireklint |author4=C. M. Schlepütz |author5=D. G. Sangiovanni |author6=B. Alling |author7=A. Rockett |author8=L. Hultman |author9=I. Petrov|author-link9=Ivan Georgiev Petrov |author10=J. E. Greene |author-link10=J. E. Greene |name-list-style=amp |journal=Physical Review B|volume=91|pages= 054101|issue=5|url=http://liu.diva-portal.org/smash/get/diva2:791634/FULLTEXT01|doi-access=free |bibcode=2015PhRvB..91e4101M }}

It is a strong-coupled superconductor.{{cite journal|doi=10.1103/PhysRevB.29.6198|title=Superconducting and normal-state properties of vanadium nitride|year=1984|author1=Zhao, B. R. |author2=Chen, L. |author3=Luo, H. L. |author4=Mullin, D. P. |journal=Physical Review B|volume=29|pages=6198|issue=11|bibcode=1984PhRvB..29.6198Z }} Nanocrystalline vanadium nitride has been claimed to have potential for use in supercapacitors.{{cite journal|doi=10.1002/adma.200502471|title=Fast and Reversible Surface Redox Reaction in Nanocrystalline Vanadium Nitride Supercapacitors|year=2006|author1=Choi, D. |author2=Blomgren, G. E. |author3=Kumta, P. N. |journal=Advanced Materials|volume=18|pages=1178|issue=9|bibcode=2006AdM....18.1178C |s2cid=96858834 }} The properties of vanadium nitride depend sensitively on the stoichiometry of the material.{{Cite journal|last1=Mei|first1=A. B.|last2=Tuteja|first2=M.|last3=Sangiovanni|first3=D. G.|last4=Haasch|first4=R. T.|last5=Rockett|first5=A.|last6=Hultman|first6=L.|last7=Petrov|first7=I.|last8=Greene|first8=J. E.|date=2016-08-25|title=Growth, nanostructure, and optical properties of epitaxial VNx/MgO(001) (0.80 ≤ x ≤ 1.00) layers deposited by reactive magnetron sputtering|url=https://pubs.rsc.org/en/content/articlelanding/2016/tc/c6tc02289h|journal=Journal of Materials Chemistry C|language=en|volume=4|issue=34|pages=7924–7938|doi=10.1039/C6TC02289H|issn=2050-7534}}