|
科学通报(英文版) 1997
Synthesis and crystal structure of SrNi_xV_(6-x)O_(11)
Keywords: SrNixV6-x,011,crystal structure,X-ray powder diffraction,Rietveld method,bond-valence method Abstract: Conclusion In SrV6O11 the M(3) sites are mainly occupied by trivalent cations; while M(l) and M (2) sites are taken by mixing of trivalent and tetravalent cations, the content of tetravalent is higher than that of trivalent at M(l) sites. The substitute Ni ions prefer to occupy M(3) sites and the relative contents of trivalent and tetravalent cations at M (1) and M (2) sites will change with the substitution.
|