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Synthesis, structure and properties of layered Pr 2 MoO 6 ‐based oxymolybdates doped with Mg
Author(s) -
Voronkova Valentina I.,
Antipin Alexander M.,
Sorokin Timofei A.,
Novikova Nataliya E.,
Kharitonova Elena P.,
Orlova Ekaterina I.,
Kvartalov Vladimir B.,
Presniakov Mikhail Yu.,
Bondarenko Vladimir I.,
Vasiliev Alexander L.,
Sorokitaliya I.
Publication year - 2020
Publication title -
acta crystallographica section b
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.604
H-Index - 33
ISSN - 2052-5206
DOI - 10.1107/s2052520620005740
Subject(s) - crystallite , analytical chemistry (journal) , materials science , doping , praseodymium , thermogravimetry , differential scanning calorimetry , crystallography , crystal structure , single crystal , scanning electron microscope , inductively coupled plasma , chemistry , inorganic chemistry , physics , plasma , optoelectronics , chromatography , quantum mechanics , metallurgy , composite material , thermodynamics
Undoped and Mg‐doped Pr 2 MoO 6 oxymolybdate polycrystals and single crystals have been prepared by solid‐state reactions and flux growth. The compounds have been characterized by powder X‐ray diffraction, energy‐dispersive spectroscopy, inductively coupled plasma mass spectrometry, scanning transmission electron microscopy, single crystal X‐ray structure analysis, differential scanning calorimetry and thermogravimetry. The (MgO) x (Pr 2 O 3 ) y (MoO 3 ) z ( x + y + z = 1) solid solution series has been shown to extend to x = 0.03. The structure of the Mg‐doped Pr 2 MoO 6 single crystals can be represented as superimposed lattices of the main matrix (Pr 2 MoO 6 ) and lattices in which Mo atoms are partially replaced by Mg. The incorporation of Mg atoms into the structure of Pr 2 MoO 6 results in the disordering of the praseodymium and oxygen lattices. Both the polycrystalline and single‐crystal Mg‐doped samples are hygroscopic.