Crystal Research and Technology
Cryst. Res. Technol. 42, 317 (2007) - Abstract -

Crystal growth of mixed-valence ammonium vanadates

Tie-Zhen Ren, Zhong-Yong Yuan*, and Xiaodong Zou

Structural Chemistry, Stockholm University, 10691 Stockholm, Sweden
*Department of Materials Chemistry, Nankai University, Tianjin 300071, China

Keywords ammonium vanadate, crystal growth, hydrothermal synthesis
PACS 81.10.Dn
DOI 10.1002/crat.200610821

A new method has been developed for the synthesis of mixed-valence ammonium vanadate crystals. Single crystals of (NH4)2V3O8 were synthesized on a large scale by hydrothermal reduction of NH4VO3 in ethanol-H2O solutions in the presence of triblock copolymer Pluronic P123. The crystals are shining thin plates with (001) cleavage planes. Calcination of the (NH4)2V3O8 crystals at 300°C or above resulted in pure phases of V2O5.




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