najoNanosystems: Physics, Chemistry, MathematicsНаносистемы: физика, химия, математика2220-80542305-7971Университет ИТМО10.17586/2220-8054-2015-6-4-583-592najo-1063Research ArticleREGULAR PAPERSREGULAR PAPERSStructural hierarchy of NH4V3O7 particles prepared under hydrothermal conditionsStructural hierarchy of NH4V3O7 particles prepared under hydrothermal conditionsZakharovaG. S.ZakharovaG. S.

Ekaterinburg

Ekaterinburg

LiuY.LiuY.PopovI. S.PopovI. S.

Ekaterinburg

Ekaterinburg

EnyashinA. N.EnyashinA. N.

Ekaterinburg

Ekaterinburg

enyashin@ihim.uran.ruInstitute of Solid State Chemistry UB RAS; Kirchhoff Institute for Physics, University of HeidelbergRussian FederationInstitute of Materials Science and Engineering, Wuhan University of TechnologyChinaInstitute of Solid State Chemistry UB RASRussian Federation20151608202564583592Copyright © Zakharova G.S., Liu Y., Popov I.S., Enyashin A.N., 20252025Zakharova G.S., Liu Y., Popov I.S., Enyashin A.N.Zakharova G.S., Liu Y., Popov I.S., Enyashin A.N.Данная работа распространяется под лицензией Creative Commons Attribution 4.0.This work is licensed under a Creative Commons Attribution 4.0 License.https://nanojournal.ifmo.ru/jour/article/view/1063

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.

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The authors declare that there are no conflicts of interest present.