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Identification of Barium Hydroxo-Hydroperoxostannate Precursor for Low-Temperature Formation of Perovskite Barium Stannate.
Medvedev, Alexander G; Mikhaylov, Alexey A; Shames, Alexander I; Ilyukhin, Andrey B; Churakov, Andrei V; Grishanov, Dmitry A; Mel'nik, Elena A; Tripol'skaya, Tatiana A; Lev, Ovadia; Prikhodchenko, Petr V.
Afiliación
  • Medvedev AG; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Mikhaylov AA; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Shames AI; Department of Physics, Ben-Gurion University of the Negev, P.O. Box 653, Be'er-Sheva 8410501, Israel.
  • Ilyukhin AB; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Churakov AV; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Grishanov DA; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Mel'nik EA; The Casali Center of Applied Chemistry, The Institute of Chemistry and The Harvey M. Krueger Family Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel.
  • Tripol'skaya TA; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Lev O; Kurnakov Institute of General and Inorganic Chemistry, Russian Academy of Sciences, Leninskii Prospekt 31, Moscow 119991, Russia.
  • Prikhodchenko PV; The Casali Center of Applied Chemistry, The Institute of Chemistry and The Harvey M. Krueger Family Center for Nanoscience and Nanotechnology, The Hebrew University of Jerusalem, Edmond J. Safra Campus, Jerusalem 91904, Israel.
Inorg Chem ; 59(24): 18358-18365, 2020 Dec 21.
Article en En | MEDLINE | ID: mdl-33285066
A breakthrough "superoxide colloidal solution route" for low-temperature synthesis of barium and strontium stannate perovskites and their doped analogues was recently introduced. The synthesis starts from hydrogen peroxide-rich stannate solutions and yields a so-called "crystalline superoxide molecular cluster" that is converted by low temperature (<300 °C) to the respective perovskites. In this paper, the so-called "crystalline superoxide molecular cluster" is identified as a superoxide-free, barium trihydroxo(hydroperoxo)peroxostannate, BaSn(OH)3(OOH)(OO) phase (BHHPS). EPR and Raman spectroscopy studies reveal the absence of superoxide in this crystalline phase. FTIR of the deuterated sample, 119Sn NMR, and elemental analysis uncovered the empirical formula, H4O7SnBa with two peroxides per each tin element. Rietveld refinement of the XRD confirms the BHHPS cubic phase with replacement of the perovskite oxygen atoms by the OH- and OOH-ligands and peroxobridging groups.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Inorg Chem Año: 2020 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Tipo de estudio: Diagnostic_studies Idioma: En Revista: Inorg Chem Año: 2020 Tipo del documento: Article País de afiliación: Rusia Pais de publicación: Estados Unidos