TY - JOUR
T1 - Phase relations in the MgMoO4-Mg3V2O8 system and crystal structure of Mg2.54V1.08Mo0.92O8 1
AU - Wang, Xiandong
AU - Stern, Charlotte L.
AU - Poeppelmeier, Kenneth R.
N1 - Funding Information:
The au,hars wish to thank Kevin R. H&r and Dr. Larry Cirjak for discussions and acknowledge an Extramural Research Award (EMRA) from BP America. Inc., the National Science Foundation (NSF) (No. DMR-WUW,) and the MRC of Nordwes,er” University supported by NSF (No. DMR-912052,) for support of thir research work.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1996/10/15
Y1 - 1996/10/15
N2 - The phase relationships in the pseudobinary MgMoO4-Mg3V2O8 system have been determined by differential thermal analysis and X-ray diffraction analysis. The intermediate compound Mg2.5VMoO8 was found to exhibit a considerable solid solution Mg2.5+xV1+2xMo1-2xO8 (-0.05 ≤ * ≤ 0.05) at 1100 °C in air. Single crystals with composition of Mg2.54V1.08Mo0.92O8 were successfully grown from the Mg-V-Mo-Oxide flux. Mg2.54V1.08Mo0.92O8 crystallizes in the orthorhombic system, space group Pnma with a = 5.058(1) Å, b = 10.307(3) Å, c = 17.402(4) Å, Z = 6. The vanadium and molybdenum cations remain in their highest oxidation states and charge neutrality associated with the variation of the V/Mo atomic ratio is balanced by an increase or decrease in the number of magnesium cations in the crystal.
AB - The phase relationships in the pseudobinary MgMoO4-Mg3V2O8 system have been determined by differential thermal analysis and X-ray diffraction analysis. The intermediate compound Mg2.5VMoO8 was found to exhibit a considerable solid solution Mg2.5+xV1+2xMo1-2xO8 (-0.05 ≤ * ≤ 0.05) at 1100 °C in air. Single crystals with composition of Mg2.54V1.08Mo0.92O8 were successfully grown from the Mg-V-Mo-Oxide flux. Mg2.54V1.08Mo0.92O8 crystallizes in the orthorhombic system, space group Pnma with a = 5.058(1) Å, b = 10.307(3) Å, c = 17.402(4) Å, Z = 6. The vanadium and molybdenum cations remain in their highest oxidation states and charge neutrality associated with the variation of the V/Mo atomic ratio is balanced by an increase or decrease in the number of magnesium cations in the crystal.
KW - Crystal structure
KW - MgVMoO and MgMoO-MgVO system
KW - Phase diagram
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U2 - 10.1016/S0925-8388(96)02381-X
DO - 10.1016/S0925-8388(96)02381-X
M3 - Article
AN - SCOPUS:0041374841
VL - 243
SP - 51
EP - 58
JO - Journal of Alloys and Compounds
JF - Journal of Alloys and Compounds
SN - 0925-8388
IS - 1-2
ER -