TY - JOUR
T1 - Structural Refinement of a-Bi4V2O11-x (x=0, 0.33) using high-resolution electron microscopy
AU - Zhou, Wuzong
AU - Jefferson, DA
AU - He, H
AU - Yuan, J
AU - Smith, DJ
PY - 1997/2
Y1 - 1997/2
N2 - alpha-Bi4V2O11 and Bi6V3O16 have been prepared by solid state reaction and their structural chemistry has been investigated using X-ray powder diffraction, high-resolution electron microscopy, solid-state nuclear magnetic resonance and electron-energy-loss spectroscopy. Their structures are closely related to each other and are both derived from gamma-Bi4V2O11 With Bi2O2 layers partially depressed in an ordered manner, forming various superstructures and implying a location of oxygen vacancies in the Bi2O2 layers, rather than the V-O layers as previously believed. These results necessitate a reconsideration of the mechanism of ionic conductivity in these materials.
AB - alpha-Bi4V2O11 and Bi6V3O16 have been prepared by solid state reaction and their structural chemistry has been investigated using X-ray powder diffraction, high-resolution electron microscopy, solid-state nuclear magnetic resonance and electron-energy-loss spectroscopy. Their structures are closely related to each other and are both derived from gamma-Bi4V2O11 With Bi2O2 layers partially depressed in an ordered manner, forming various superstructures and implying a location of oxygen vacancies in the Bi2O2 layers, rather than the V-O layers as previously believed. These results necessitate a reconsideration of the mechanism of ionic conductivity in these materials.
UR - http://www.scopus.com/inward/record.url?scp=0031078904&partnerID=8YFLogxK
U2 - 10.1080/095008397179813
DO - 10.1080/095008397179813
M3 - Article
SN - 0950-0839
VL - 75
SP - 105
EP - 110
JO - Philosophical Magazine Letters
JF - Philosophical Magazine Letters
ER -