Kim, Y.-Y. orcid.org/0000-0002-8503-4554, Freeman, C.L. orcid.org/0000-0002-6326-1211, Gong, X. et al. (9 more authors) (2017) The Effect of Additives on the Early Stages of Growth of Calcite Single Crystals. Angewandte Chemie International Edition, 56 (39). pp. 11885-11890. ISSN 1433-7851
Abstract
As crystallization processes are often rapid, it can be difficult to monitor their growth mechanisms. In this study, we made use of the fact that crystallization proceeds more slowly in small volumes than in bulk solution to investigate the effects of the soluble additives Mg(2+) and poly(styrene sulfonate) (PSS) on the early stages of growth of calcite crystals. Using a "Crystal Hotel" microfluidic device to provide well-defined, nanoliter volumes, we observed that calcite crystals form via an amorphous precursor phase. Surprisingly, the first calcite crystals formed are perfect rhombohedra, and the soluble additives have no influence on the morphology until the crystals reach sizes of 0.1-0.5 μm for Mg(2+) and 1-2 μm for PSS. The crystals then continue to grow to develop morphologies characteristic of these additives. These results can be rationalized by considering additive binding to kink sites, which is consistent with crystal growth by a classical mechanism.
Metadata
Item Type: | Article |
---|---|
Authors/Creators: |
|
Copyright, Publisher and Additional Information: | © 2017 The Authors. Published by Wiley-VCH Verlag GmbH & Co. KGaA. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited. |
Keywords: | biomineralization; calcite; crystal growth; microfluidics |
Dates: |
|
Institution: | The University of Sheffield |
Academic Units: | The University of Sheffield > Faculty of Engineering (Sheffield) > Department of Materials Science and Engineering (Sheffield) |
Depositing User: | Symplectic Sheffield |
Date Deposited: | 15 Sep 2017 13:00 |
Last Modified: | 24 Oct 2018 10:47 |
Published Version: | https://doi.org/10.1002/anie.201706800 |
Status: | Published |
Publisher: | Wiley |
Refereed: | Yes |
Identification Number: | 10.1002/anie.201706800 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:121178 |
Download
Filename: Kim_et_al-2017-Angewandte_Chemie_International_Edition.pdf
Licence: CC-BY 4.0