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In-Situ Dynamic High-Resolution Transmission Electron Microscopy Investigation of Guest-Layer Behavior During Deintercalation of Mercury Titanium Disulfide

Published online by Cambridge University Press:  21 February 2011

M. Mckelvy ,
M. Sidorov ,
A. Marie ,
R. Sharma  and
W.S. Glaunsinger
M. Mckelvy
Affiliation:
Center for Solid State Science, Arizona State University, Tempe, AZ, (USA), 85287-1704
M. Sidorov
Affiliation:
Center for Solid State Science, Arizona State University, Tempe, AZ, (USA), 85287-1704
A. Marie
Affiliation:
Institut des Matériaux, UMR 110, University of Nantes, 44072 Nantes, France
R. Sharma
Affiliation:
Center for Solid State Science, Arizona State University, Tempe, AZ, (USA), 85287-1704
W.S. Glaunsinger
Affiliation:
Department of Chemistry and Biochemistry, Arizona State University, Tempe, AZ, (USA), 85287-1704
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Abstract

Deintercalation processes for the model neutral intercalation system HgxTiS2 (1.25≥x>0.00) have been investigated using dynamic high-resolution transmission electron microscopy. X-ray powder diffraction and thermogravimetric analysis demonstrated the intercalation process is thermally reversible, both structurally and compositionally. In situ deintercalation of stage- 1 compounds was induced by thermal/electron-beam heating during DHRTEM observation. The resulting deintercalation processes were followed with 0.03 second time resolution. The deintercalation processes observed possess a strong similarity to nucleation and growth processes. Deintercalation was observed to “nucleate” by the initial deintercalation of an external-most or internal guest layer, with further deintercalation of the guest “growing” away from the onset layers. This results in generally randogmuelsyt lsatyaegresd greengeiroanllsy, occasionally containing regions of short-range order, that expand away from the deintercalation onset layers.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 332: Symposium U – Determining Nanoscale Physical Properties of Materials by Microscopy and Spectroscopy , 1994 , 115
Copyright
Copyright © Materials Research Society 1994

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References

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