TY - JOUR
T1 - A combined time-of-flight powder neutron and powder X-ray diffraction study of ternary chromium sulfides, VxCr3-xS4 (0≤x≤1.0)
AU - Colgan, Douglas C.
AU - Powell, Anthony Vivian
PY - 1996
Y1 - 1996
N2 - A combination of time-of-flight powder neutron diffraction and powder X-ray diffraction has been used to investigate the distribution of vanadium and chromium cations between two crystallographic sites in the series of ternary sulfides VxCr3-xS4 (0.0=x=1.0). These materials adopt the Cr3S4 structure (space group I2/m: a˜5.9, b˜3.4, c˜1.2 Å; ߘ91.4°) over the entire composition range. However, a marked change in the distribution of cations takes place in a region of composition in which anomalies have previously been observed in plots of cell parameters as a function of composition. Above x˜0.4, vanadium is almost equally apportioned between sites in a fully occupied cation layer and sites in an ordered vacancy layer, whereas at a composition V0.2Cr2.8S4, vanadium preferentially occupies sites in the ordered vacancy layer.
AB - A combination of time-of-flight powder neutron diffraction and powder X-ray diffraction has been used to investigate the distribution of vanadium and chromium cations between two crystallographic sites in the series of ternary sulfides VxCr3-xS4 (0.0=x=1.0). These materials adopt the Cr3S4 structure (space group I2/m: a˜5.9, b˜3.4, c˜1.2 Å; ߘ91.4°) over the entire composition range. However, a marked change in the distribution of cations takes place in a region of composition in which anomalies have previously been observed in plots of cell parameters as a function of composition. Above x˜0.4, vanadium is almost equally apportioned between sites in a fully occupied cation layer and sites in an ordered vacancy layer, whereas at a composition V0.2Cr2.8S4, vanadium preferentially occupies sites in the ordered vacancy layer.
UR - http://www.scopus.com/inward/record.url?scp=0000630451&partnerID=8YFLogxK
M3 - Article
SN - 1364-5501
VL - 6
SP - 1579
EP - 1584
JO - Journal of Materials Chemistry
JF - Journal of Materials Chemistry
IS - 9
ER -