Preparation of La{sub x}V{sub 2}O{sub 5} bronze by magnetron sputtering

Journal Article · Sun Jan 01 04:00:00 EST 1995 · Inorganic Materials

OSTI ID:161935

Chesnis, A; Oginskis, A K; Vesene, T ^[1]

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1. Institute of Semiconductor Physics, Vilnius (Lithuania); and others

Lanthanide vanadium bronzes Ln{sub x}V{sub 2}O{sub 5} are of interest as new materials for producing ionometric electrodes sensitive to the corresponding constituent rare-earth ions present in solution. Synthesis of these materials is, however, fairly complex and laborious. First attempts at preparing these bronzes (namely, La{sub x}V{sub 2}O{sub 5}) involved treatment conventionally used in the synthesis of vanadium bronzes: high-temperature annealing (1020 K, 24 h) of a mixture of La{sub 2}O{sub 3}, VO and V{sub 2}O{sub 5} powders in evacuated quartz tubes. Later, however, this preparation procedure was reported to yield a three-phase product containing a rare-earth orthovanadate and two vanadium oxides. Only upon annealing at high pressure (7.7-9.0 GPa), was this mixture converted to a hexagonal bronze. Here, the authors report an attempt at preparing lanthanum vanadium bronze by magnetron sputtering in an inert atmosphere from starting reagents commonly used in the synthesis of this bronze.

• OSTI ID: 161935
• Journal Information: Inorganic Materials, Journal Name: Inorganic Materials Journal Issue: 1 Vol. 31; ISSN INOMAF; ISSN 0020-1685
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
CHEMICAL PREPARATION
CHEMICAL REACTION YIELD
LANTHANUM OXIDES
VANADIUM OXIDES