REDUCTION OF MAGNESIUM ORTHOVANADATE MG-3(VO4)(2)

Authors
WANG XD ZHANG H SINKLER W POEPPELMEIER KR MARKS LD
Citation
Xd. Wang et al., REDUCTION OF MAGNESIUM ORTHOVANADATE MG-3(VO4)(2), Journal of alloys and compounds, 270(1-2), 1998, pp. 88-94
Citations number
21
Categorie Soggetti
Chemistry Physical","Metallurgy & Metallurigical Engineering","Material Science
Journal title
Journal of alloys and compounds → ACNP
ISSN journal
09258388
Volume
270
Issue
1-2
Year of publication
1998
Pages
88 - 94
Database
ISI
SICI code
0925-8388(1998)270:1-2<88:ROMOM>2.0.ZU;2-3
Abstract
Reduction of polycrystalline and crystalline magnesium orthovanadate M g3V2O8 by hydrogen was investigated in the temperature range of 560-92 0 degrees C. A single crystal of orthorhombic Mg3V2O8 with a cation-de ficient-spinel structure (25% of the magnesium atoms on octahedral sit es are vacant) was transformed into cubic Mg3V2O6 which has a cation-s tuffed-spinel structure (8a and 16c sites were partially occupied by m agnesium and 16d sites were fully occupied by magnesium and vanadium) at 560 degrees C in 7% H-2 in N-2. (C) 1998 Elsevier Science S.A.