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Structural and physical properties of the solid solution series Bi{sub 4}V{sub 2{minus}x}Ni{sub x}O{sub 11{minus}1.5x}

Journal Article · · Journal of Solid State Chemistry
;  [1]
  1. Univ. of Texas, Austin, TX (United States)
The compounds Bi{sub 4}V{sub 2{minus}x}Ni{sub x}O{sub 11{minus}1.5x}, x {le} 0.35, were prepared by solid state reaction. The {alpha} phase is present at room temperature for x {le} 0.20 and the {gamma} phase is stable for greater Ni concentrations. The oxygen ion vacancies in the x = 0.30 phase exist in the equatorial plane of the V/Ni coordination octahedron. The x = 0.30 phase is paramagnetic. As the Ni concentration decreases the magnetic spin structure gradually changes to that of an amorphous spin glass. At 833 K the ionic conductivity {sigma} = 3.16 {times} 10{sup {minus}2} S cm{sup {minus}1}. The ionic conductivity decreases with increasing Ni concentration.
Sponsoring Organization:
Welch (Robert A.) Foundation, Houston, TX (United States)
OSTI ID:
349909
Journal Information:
Journal of Solid State Chemistry, Journal Name: Journal of Solid State Chemistry Journal Issue: 1 Vol. 143; ISSN 0022-4596; ISSN JSSCBI
Country of Publication:
United States
Language:
English