CERIUM VALENCE IN CERIUM-EXCHANGED PREYSSLERS HETEROPOLYANION THROUGH X-RAY-ABSORPTION NEAR-EDGE STRUCTURE

被引:54
作者
ANTONIO, MR
SODERHOLM, L
机构
[1] Argonne National Laboratory, Chemistry Division, Illinois 60439-4831, Argonne
关键词
D O I
10.1021/ic00104a004
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The sodium ion in the heteropolytungstate known as the Preyssler anion, [NaP5W30O110](14-), was exchanged with cerium from aqueous solutions of ammonium eerie nitrate, [NH4]Ce-2(IV)(NO3)(6), as described by Creaser et al. [Inorg. Chem. 1993, 32, 1573]. The valence of cerium in this heteropolyanion was determined through Ce L-edge XANES, X-ray absorption near-edge structure. The XANES results demonstrate that cerium is trivalent in the Ce-exchanged Preyssler heteropolyanion in the solid state and in aqueous solution (1 M H2SO4) at rest potential and after constant-potential, bulk electrolysis at -0.55 V vs SCE. The encapsulated sodium ion of the Preyssler anion was shown to be directly exchangeable with Ce-III by prolonged (48 h), high temperature (165 degrees C) aqueous treatments with either Ce(NO3)(3).6H(2)O or CeCl3.7H(2)O in Teflon-lined pressure vessels.
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收藏
页码:5988 / 5993
页数:6
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共 56 条
  • [31] DETERMINATION OF THE VALENCE OF PR, GD, AND HO IN YBA2CU3O7 BY X-RAY ABSORPTION-SPECTROSCOPY
    LYTLE, FW
    VANDERLAAN, G
    GREEGOR, RB
    LARSON, EM
    VIOLET, CE
    WONG, J
    [J]. PHYSICAL REVIEW B, 1990, 41 (13): : 8955 - 8963
  • [32] X-RAY ABSORPTION-SPECTROSCOPY
    LYTLE, FW
    [J]. BERICHTE DER BUNSEN-GESELLSCHAFT-PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 1987, 91 (11): : 1251 - 1257
  • [33] LYTLE FW, 1989, APPLICATIONS SYNCHRO, V4, P135
  • [34] L-EDGE ABSORPTION-SPECTRA OF THE RARE-EARTHS - ASSESSMENT OF THE SINGLE-PARTICLE PICTURE
    MATERLIK, G
    MULLER, JE
    WILKINS, JW
    [J]. PHYSICAL REVIEW LETTERS, 1983, 50 (04) : 267 - 270
  • [35] Matveev KI, 1982, RUSS CHEM REV, V51, P1075, DOI DOI 10.1070/RC1982V051N11ABEH002941
  • [36] HETEROGENEOUS CATALYSIS BY HETEROPOLY COMPOUNDS OF MOLYBDENUM AND TUNGSTEN
    MISONO, M
    [J]. CATALYSIS REVIEWS-SCIENCE AND ENGINEERING, 1987, 29 (2-3): : 269 - 321
  • [37] STRUCTURES OF HYDRATED TITANIUM AND VANADIUM IONS IN AQUEOUS-SOLUTIONS STUDIED BY X-RAY ABSORPTION-SPECTROSCOPY
    MIYANAGA, T
    WATANABE, I
    IKEDA, S
    [J]. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1990, 63 (11) : 3282 - 3287
  • [38] XANES OF AQUA COMPLEXES OF 3D TRANSITION-METALS IN SOLID AND SOLUTION
    MIYANAGA, T
    WATANABE, I
    IKEDA, S
    TASHIRO, K
    FUJIKAWA, T
    [J]. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1988, 61 (09) : 3199 - 3203
  • [39] HETEROPOLYANIONS IN CATALYSIS
    MIZUNO, N
    MISONO, M
    [J]. JOURNAL OF MOLECULAR CATALYSIS, 1994, 86 (1-3): : 319 - 342
  • [40] Muller, 1994, POLYOXOMETALATES PLA