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EXAFS study of the M0.5(OH)x(H2O)yMoS2 intercalated complexes

✍ Scribed by E.F. Valeev; Ya.V. Zubavitchus; Yu.L. Slovokhotov; A.S. Golub; G.A. Protzenko; Yu.N. Novikov

Publisher: Elsevier Science
Year: 1995
Tongue: English
Weight: 115 KB
Volume: 208-209
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(94)00754-j

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✦ Synopsis

Synchrotron EXAFS spectra (Novosibirsk VEPP-3 storage ring, 2.5 GeV, 120mA, Si[1 1 1] monochromator) of the noncrystalline intercalates Nio.5(OH)x(HzO)yMoS2 (1), Coo.5 (OH)x(H/O)yMoSz ( 2), Feo.s (OH)~(H20)~MoSz (3), and (Ni,La)z(OH)~(H20)r MoS2 (4), prepared by the ion-exchange reaction of LixMoS2 with the corresponding aqua ions in water, exhibit two closest coordination shells M-O and M-.. M. The spectra of (1)-(3) together with their X-ray powder data fit the structure of alternating MoS/and M(OH)2 hexagonal layers. The M-O (2.05-2.20 A) and M .-. M distances (3.11-3.23 A) in (1)-(4) agree well with the known crystal structures of M(OH)z.

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