Synthesis and properties of GdMCr2O5 (M = Na, K, Cs)

被引：0
|
作者：
B. K. Kasenov
S. Zh. Davrenbekov
E. S. Mustafin
Sh. B. Kasenova
S. T. Edil’baeva
E. K. Zhumadilov
机构：
[1] Kazakh Ministry of Education and Science,Institute of Phytochemistry
来源：
Inorganic Materials | 2006年 / 42卷
关键词：
Phase Transition; Inorganic Chemistry; Heat Capacity; Calorimeter; Chromite;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The GdMCr2O5 (M=Na, K, Cs) chromites are synthesized from Gd2O3, Cr2O3, and M2CO3 by solid-state reactions and are shown to have a tetragonal structure. The heat capacity of the chromites is measured from 298.15 to 673 K using a heat-pulse calorimeter. The data for GdKCr2O5 and GdCsCr2O5 show anomalies at 373 and 398 K, respectively, attributable to a second-order phase transition. The best fit equations for the Cp0(T) data are derived. Electrical measurements in the range 303–383 K attest to semiconducting behavior of the chromites.
引用
收藏
页码：68 / 74
页数：6
相关论文
共 50 条
  • [31] Synthesis and ferroelectric properties of M0.5Bi2.5Ta2O9 (M = Na, K) ceramics
    Komagata, K
    Takeda, H
    Shiosaki, T
    JOURNAL OF THE CERAMIC SOCIETY OF JAPAN, 2002, 110 (04) : 255 - 258
  • [32] Synthesis, structure and properties of molybdenum(VI) oxalate complexes of the types M2[Mo2O5(C2O4)2(H2O)2] and M2[MoO3(C2O4)] (M = Na, K, Rb, Cs)
    Cindric, M
    Strukan, N
    Vrdoljak, V
    Devcic, M
    Veksli, Z
    Kamenar, B
    INORGANICA CHIMICA ACTA, 2000, 304 (02) : 260 - 267
  • [33] Elastic properties of MBH4 (M=Na, K, Rb, Cs)
    Zhang, Xiao-Dong
    Hou, Zhu-Feng
    Jiang, Zhen-Yi
    Hou, Yu-Qing
    PHYSICA B-CONDENSED MATTER, 2011, 406 (11) : 2196 - 2199
  • [34] Synthesis, VKβ5β" spectra, and magnetic properties of M4±xV6O16±x•nH2O (M = K, Rb, Cs) polyvanadates
    Volkov, V. L.
    Podval'naya, N. V.
    Cherkashenko, V. M.
    Nemnonov, S. N.
    RUSSIAN JOURNAL OF INORGANIC CHEMISTRY, 2007, 52 (08) : 1189 - 1193
  • [35] Synthesis, VKβ5β″ spectra, and magnetic properties of M4 ± xV6O16 ± x · nH2O (M = K, Rb, Cs) polyvanadates
    V. L. Volkov
    N. V. Podval’naya
    V. M. Cherkashenko
    S. N. Nemnonov
    Russian Journal of Inorganic Chemistry, 2007, 52 : 1189 - 1193
  • [36] SYNTHESIS AND PROPERTIES OF MUO(SO4)2 (M=K,RB,CS)
    KRASILNIKOV, VN
    GLAZYRIN, MP
    IVAKIN, AA
    ZHURNAL NEORGANICHESKOI KHIMII, 1984, 29 (01): : 94 - 97
  • [37] DEPENDENCE OF SOME THERMODYNAMIC PROPERTIES OF OXIDE COMPOUNDS ON THE BASICITY IN THE M2O - SiO2 (M = Li, Na, K, Rb, Cs) SYSTEM
    Radu, Dorel
    Dumitrescu, Ovidiu
    REVISTA ROMANA DE MATERIALE-ROMANIAN JOURNAL OF MATERIALS, 2015, 45 (01): : 73 - 79
  • [38] Vibrational spectra of double diphosphates M2SrP2O7 (M=Li,Na,K,Rb,Cs)
    Harcharras, M
    Ennaciri, A
    Assaaoudi, H
    CANADIAN JOURNAL OF ANALYTICAL SCIENCES AND SPECTROSCOPY, 2001, 46 (03): : 83 - 88
  • [39] Conductrometric, density and thermal measurements of the M2S2O7 (M = Na, K, Rb, Cs) salts
    Hatem, G
    Abdoun, F
    Gaune-Escard, M
    Eriksen, KM
    Fehrmann, R
    THERMOCHIMICA ACTA, 1998, 319 (1-2) : 33 - 42
  • [40] Magnetic properties of AV2O5 (A = Li, Na, Cs, Ca and Mg)
    Ueda, Y
    Isobe, M
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1998, 177 : 741 - 742
12345