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Title: New series of triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices

Abstract

Triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized and single crystals of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were grown. In their structures, the MoO{sub 4} tetrahedra, pairs and trimers of edge-shared (Mg, R)O{sub 6} octahedra are connected by common vertices to form a 3D framework. Large framework cavities involve Ag{sup +} cations disordered on three nearby positions with CN=3+1 or 4+1. Alternating (Mg, R)O{sub 6} octahedra and MoO{sub 4} tetrahedra in the framework form quadrangular windows penetrable for Ag{sup +} at elevated temperatures. Above 653–673 K, the newly obtained molybdates demonstrate abrupt reduction of the activation energy to 0.4–0.6 eV. At 773 K, AgMg{sub 3}Al(MoO{sub 4}){sub 5} shows electric conductivity 2.5·10{sup −2} S/cm and E{sub a}=0.39 eV compatible with characteristics of the best ionic conductors of the NASICON type. - Graphical abstract: Triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized, AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were structurally characterized, ion-conductive properties of AgMg{sub 3}Al(MoO{sub 4}){sub 5} were measured. Display Omitted - Highlights: • Triple molybdates AgA{sub 3}R(MoO{submore » 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized. • Single crystals of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were grown and their crystal structures were determined. • Disordering Ag{sup +} ions and penetrable framework structures of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) suggest 2D-character of silver-ion mobility. • Measured ion-conductive properties of AgMg{sub 3}Al(MoO{sub 4}){sub 5} are compatible with characteristics of the best ionic conductors of the NASICON type.« less

Authors:
 [1];  [2];  [3];  [2];  [3]; ;  [4];  [1];  [2];  [1];  [2]
  1. Baikal Institute of Nature Management, Siberian Branch, Russian Academy of Sciences, Sakh’yanova St. 6, Ulan-Ude 670047, Buryat Republic (Russian Federation)
  2. (Russian Federation)
  3. Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Acad. Lavrentiev Ave. 3, Novosibirsk 630090 (Russian Federation)
  4. Lomonosov Moscow State University, Leninskie Gory 1, Moscow 119991 (Russian Federation)
Publication Date:
OSTI Identifier:
22584110
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Solid State Chemistry; Journal Volume: 238; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; ACTIVATION ENERGY; CARBON NITRIDES; CATIONS; CRYSTAL STRUCTURE; CYANIDES; ELECTRIC CONDUCTORS; ION MOBILITY; IONIC CONDUCTIVITY; MOLYBDATES; MONOCRYSTALS; SILVER; SILVER IONS; SYNTHESIS

Citation Formats

Kotova, Irina Yu., Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Solodovnikov, Sergey F., Novosibirsk State University, Pirogov St. 2, Novosibirsk 630090, Solodovnikova, Zoya A., Belov, Dmitry A., Stefanovich, Sergey Yu., Savina, Aleksandra A., E-mail: alex551112@mail.ru, Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Khaikina, Elena G., and Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic. New series of triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices. United States: N. p., 2016. Web. doi:10.1016/J.JSSC.2016.03.003.
Kotova, Irina Yu., Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Solodovnikov, Sergey F., Novosibirsk State University, Pirogov St. 2, Novosibirsk 630090, Solodovnikova, Zoya A., Belov, Dmitry A., Stefanovich, Sergey Yu., Savina, Aleksandra A., E-mail: alex551112@mail.ru, Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Khaikina, Elena G., & Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic. New series of triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices. United States. doi:10.1016/J.JSSC.2016.03.003.
Kotova, Irina Yu., Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Solodovnikov, Sergey F., Novosibirsk State University, Pirogov St. 2, Novosibirsk 630090, Solodovnikova, Zoya A., Belov, Dmitry A., Stefanovich, Sergey Yu., Savina, Aleksandra A., E-mail: alex551112@mail.ru, Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic, Khaikina, Elena G., and Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic. Wed . "New series of triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices". United States. doi:10.1016/J.JSSC.2016.03.003.
@article{osti_22584110,
title = {New series of triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) with framework structures and mobile silver ion sublattices},
author = {Kotova, Irina Yu. and Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic and Solodovnikov, Sergey F. and Novosibirsk State University, Pirogov St. 2, Novosibirsk 630090 and Solodovnikova, Zoya A. and Belov, Dmitry A. and Stefanovich, Sergey Yu. and Savina, Aleksandra A., E-mail: alex551112@mail.ru and Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic and Khaikina, Elena G. and Buryat State University, Smolin St. 24a, Ulan-Ude 670000, Buryat Republic},
abstractNote = {Triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized and single crystals of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were grown. In their structures, the MoO{sub 4} tetrahedra, pairs and trimers of edge-shared (Mg, R)O{sub 6} octahedra are connected by common vertices to form a 3D framework. Large framework cavities involve Ag{sup +} cations disordered on three nearby positions with CN=3+1 or 4+1. Alternating (Mg, R)O{sub 6} octahedra and MoO{sub 4} tetrahedra in the framework form quadrangular windows penetrable for Ag{sup +} at elevated temperatures. Above 653–673 K, the newly obtained molybdates demonstrate abrupt reduction of the activation energy to 0.4–0.6 eV. At 773 K, AgMg{sub 3}Al(MoO{sub 4}){sub 5} shows electric conductivity 2.5·10{sup −2} S/cm and E{sub a}=0.39 eV compatible with characteristics of the best ionic conductors of the NASICON type. - Graphical abstract: Triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized, AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were structurally characterized, ion-conductive properties of AgMg{sub 3}Al(MoO{sub 4}){sub 5} were measured. Display Omitted - Highlights: • Triple molybdates AgA{sub 3}R(MoO{sub 4}){sub 5} (A=Mg, R=Cr, Fe; A=Mn, R=Al, Cr, Fe, Sc, In) of the NaMg{sub 3}In(MoO{sub 4}){sub 5} type were synthesized. • Single crystals of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) were grown and their crystal structures were determined. • Disordering Ag{sup +} ions and penetrable framework structures of AgMg{sub 3}R(MoO{sub 4}){sub 5} (R=Cr, Fe) suggest 2D-character of silver-ion mobility. • Measured ion-conductive properties of AgMg{sub 3}Al(MoO{sub 4}){sub 5} are compatible with characteristics of the best ionic conductors of the NASICON type.},
doi = {10.1016/J.JSSC.2016.03.003},
journal = {Journal of Solid State Chemistry},
number = ,
volume = 238,
place = {United States},
year = {Wed Jun 15 00:00:00 EDT 2016},
month = {Wed Jun 15 00:00:00 EDT 2016}
}