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In situ monitoring of crystal growth and dissolution of oriented layered double-hydroxide crystals immobilized on silicon
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Greenwell, H. C., Bindley, L. A., Unwin, Patrick R., Holliman, P. J., Jones, W., Coveney, P. V. and Barnes, S. L. (2006) In situ monitoring of crystal growth and dissolution of oriented layered double-hydroxide crystals immobilized on silicon. In: Summer School on New Advances in Crystal Growth and Nucleation of Complex Materials, Barga, ITALY, AUG 27-SEP 03, 2005. Published in: JOURNAL OF CRYSTAL GROWTH, 294 (1). pp. 53-59. doi:10.1016/j.jcrysgro.2006.05.048 ISSN 0022-0248.
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Official URL: http://dx.doi.org/10.1016/j.jcrysgro.2006.05.048
Abstract
Layered double-hydroxide (LDH) minerals have recently attracted attention through their potential industrial application as fillers in mineral polymer nanocomposite materials and, separately, as solid base catalysts to promote a range of reactions in an environmentally sound way. Little research has been undertaken on the crystal growth mechanism of LDHs using in situ methods. Recently, advances have been made in the controlled deposition and immobilisation of nanometre-sized LDH crystals onto a silicon substrate with preferred orientation. In this work we present initial studies using atomic force microscopy to image in real time immobilised LDH crystals during stages of hydration, growth and dissolution. The various stages were recorded by adjusting the reactant concentrations of the surrounding aqueous solution, allowing crystal dynamics to be visualised. Under certain conditions preferred stability of certain-sized LDH crystals relative to others was observed, indicating the operation of an Ostwald ripening process in samples containing a heterogeneous distribution of crystallite sizes. (c) 2006 Elsevier B.V. All rights reserved.
Item Type: | Conference Item (UNSPECIFIED) | ||||
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Subjects: | Q Science > QD Chemistry | ||||
Journal or Publication Title: | JOURNAL OF CRYSTAL GROWTH | ||||
Publisher: | ELSEVIER SCIENCE BV | ||||
ISSN: | 0022-0248 | ||||
Official Date: | 15 August 2006 | ||||
Dates: |
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Volume: | 294 | ||||
Number: | 1 | ||||
Number of Pages: | 7 | ||||
Page Range: | pp. 53-59 | ||||
DOI: | 10.1016/j.jcrysgro.2006.05.048 | ||||
Publication Status: | Published | ||||
Title of Event: | Summer School on New Advances in Crystal Growth and Nucleation of Complex Materials | ||||
Location of Event: | Barga, ITALY | ||||
Date(s) of Event: | AUG 27-SEP 03, 2005 |
Data sourced from Thomson Reuters' Web of Knowledge
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