Premium
Crystal growth of mixed‐valence ammonium vanadates
Author(s) -
Ren TieZhen,
Yuan ZhongYong,
Zou Xiaodong
Publication year - 2007
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.200610821
Subject(s) - vanadate , calcination , valence (chemistry) , chemistry , crystallography , ammonium , inorganic chemistry , hydrothermal circulation , hydrothermal synthesis , copolymer , materials science , nuclear chemistry , chemical engineering , catalysis , polymer , organic chemistry , engineering
A new method has been developed for the synthesis of mixed‐valence ammonium vanadate crystals. Single crystals of (NH 4 ) 2 V 3 O 8 were synthesized on a large scale by hydrothermal reduction of NH 4 VO 3 in ethanol‐H 2 O solutions in the presence of triblock copolymer Pluronic P123. The crystals are shining thin plates with (001) cleavage planes. Calcination of the (NH 4 ) 2 V 3 O 8 crystals at 300°C or above resulted in pure phases of V 2 O 5 . (© 2007 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)