BaV10xO17 (Ox0.7) chemical compound and its synthesis method null which have

摘要

PURPOSE: To obtain a new compd. which is a vanadium-defecting solid soln. containing vanadium ions with mixed valencies of +3 and +4, and provide synthesizing method thereof. ;CONSTITUTION: This compd. is a new compd. having a compsn. expressed by formula (0x0.7) and a monoclinic crystalline structure. This compd. is synthesized by the following method. Metallic barium, barium oxide, compd. which can be decomposed into barium oxide by heating, barium-vanadium multiple oxide or compd. which can be decomposed into barium vanadium multiple oxide by heating is mixed with metal vanadium, vanadium oxide or compd. which can be decomposed into vanadium oxide by heating in a mixing ratio of Ba:V=1:9.3 to 1:10.0. Then, the mixture is heated in a nonoxidative atmosphere at temp. between ≥600°C and 1500°C.;COPYRIGHT: (C)1995,JPO