Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 1

Liczba wyników na stronie

Wyniki wyszukiwania

Wyszukiwano:
w słowach kluczowych: transitionmetals

Sortuj według:

Ogranicz wyniki do:

Stabilization ofWVI in Nitride Environment via Acid/Base Reactions, and General Route to Layered Transition Metal Nitrides

Grochala W.

Polish Journal of Chemistry

2007

Vol. 81, nr 5-6

613-620

DFT calculations for two hypothetical ternary nitrides of hexavalent tungsten: LaWN3 and La2WN4 (in perovskite and K2NiF4 structures, respectively) show that these compounds should spontaneously form fromWN2 (acid) and LaN (base) reagents, or simply from (WN + 1/2 N2 orW+ N2) and LaN, at ambient or elevated temperature and high N2 pressure to speed up the reactions. This concept may be utilized to stabilize other efemeric nitrides, like these of ReVII, OsVIII, and possibly even of unprecedented IrIX. La2WN4 is example of rare two-dimensional nitride materials. Band structure calculations confirm that LaWN3, La2WN4 and several related compounds should exhibitmetallic conductivity, and they show good prospect for 2Dsuperconductivity via self-doping.