XAFS study of local atomic environment in well- and ill-ordered transitionmetal sulfides MxTS2 (T = Mo, Nb, Ta) derived from TS2 intercalates

Authors
Slovokhotov, YL Zubavichus, YV Golub, AS Novikov, YN Akselrud, LG Kulikov, LM Semenov-Kobzar, AA
Citation
Yl. Slovokhotov et al., XAFS study of local atomic environment in well- and ill-ordered transitionmetal sulfides MxTS2 (T = Mo, Nb, Ta) derived from TS2 intercalates, NUCL INST A, 470(1-2), 2001, pp. 295-301
Citations number
18
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences","Instrumentation & Measurement
Journal title
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
ISSN journal
01689002 → ACNP
Volume
470
Issue
1-2
Year of publication
2001
Pages
295 - 301
Database
ISI
SICI code
0168-9002(20010901)470:1-2<295:XSOLAE>2.0.ZU;2-Q
Abstract
XRD and XAFS data for two series in mixed-metal derivatives of layered TX, disulfides (where T = Nb, Ta, and MO), viz MxMoS2 (M=Ni, Cu, Ag, Cd) and (N i,Cr)(0.33)TS2 (T=Nb, Ta), and related species, were analyzed qualitatively . Intercalation of M atoms between MoS2 slabs in poorly-ordered MxMoS2 was supported by a comparison with crystalline Cr0.33TS2 and Ni0.33TS2 referenc e samples. A disorder of Nb and Ta atoms inside trigonal prismatic coordina tion polyhedron is revealed by EXAFS and discussed. (C) 2001 Elsevier Scien ce B.V. All rights reserved.