Structural hierarchy of NH4V3O7 particles prepared under hydrothermal conditions
https://doi.org/10.17586/2220-8054-2015-6-4-583-592
Abstract
Despite having simple stoichiometry, NH4V3O7 still remains an odd compound with poorly resolved structure among the series of known ammonium vanadates. Here, a new hydrothermal synthesis of the product with explicit NH4V3O7 stoichiometry is evaluated. Intricate microstructure of the product is revealed as an aggregate of spherical microparticles consisting of microplatelets via scanning electron microscopy. To further guide the characterization of the NH4V3O7 phase, X-ray diffraction analysis and first-principle calculations were carried out to refine the structure at an atomistic level and to predict electronic properties. The results suggest a complex structural hierarchy with consequent nanodomain organization of prepared NH4V3O7 microplatelets.
Supporting agencies: The support from the Ministry of Science and Education of Russian Federation (unique project identifier RFMEF161314X0002) is gratefully acknowledged.
About the Authors
G. S. Zakharova
Institute of Solid State Chemistry UB RAS; Kirchhoff Institute for Physics, University of Heidelberg
Russian Federation
Russian Federation
Ekaterinburg
Y. Liu
Institute of Materials Science and Engineering, Wuhan University of Technology
China
China
I. S. Popov
Institute of Solid State Chemistry UB RAS
Russian Federation
Russian Federation
Ekaterinburg
A. N. Enyashin
Institute of Solid State Chemistry UB RAS
Russian Federation
Russian Federation
Ekaterinburg
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Review
For citations:
Zakharova G.S., Liu Y., Popov I.S., Enyashin A.N. Structural hierarchy of NH4V3O7 particles prepared under hydrothermal conditions. Nanosystems: Physics, Chemistry, Mathematics. 2015;6(4):583-592. https://doi.org/10.17586/2220-8054-2015-6-4-583-592
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