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Synthesis of calcium phosphate crystals with thin nacreous structure
KTH, School of Chemical Science and Engineering (CHE), Fibre and Polymer Technology. KTH, School of Chemical Science and Engineering (CHE), Centres, Wallenberg Wood Science Center.ORCID iD: 0000-0002-9663-7705
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2016 (English)In: CrystEngComm, ISSN 1466-8033, E-ISSN 1466-8033, Vol. 18, no 6, 1064-1069 p.Article in journal (Refereed) Published
Abstract [en]

Nacre-like structures have attracted great interest in recent years due to their outstanding toughness, stiffness and impact resistance. However, there is a challenge associated with engineering nacre-like calcium phosphate crystals. In this study, thin nacreous-like monetite sheets were synthesized in solutions guided by a surfactant. The influence of temperature, initial pH, Ca/P ratio, stirring time and the concentration of cetyltrimethylammonium bromide (CTAB) on the nacre-like structure has been studied. Findings showed that a nacre-like structure could only be formed at a high temperature (90 °C), high initial pH (11), sufficient stirring time (3 h), and under the presence of CTAB. A small-angle X-ray scattering experiment carried out at a synchrotron radiation facility showed that the distance between nanolayers was around 2.6 nm and TEM confirmed the fine sheet-like structure. The mechanism of the formation the nacre-like structure and its characterization were discussed.

Place, publisher, year, edition, pages
Royal Society of Chemistry, 2016. Vol. 18, no 6, 1064-1069 p.
National Category
Ceramics
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URN: urn:nbn:se:kth:diva-180732DOI: 10.1039/C5CE02078FISI: 000369609800025ScopusID: 2-s2.0-84956926056OAI: oai:DiVA.org:kth-180732DiVA: diva2:896570
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QC 20160304

Available from: 2016-01-21 Created: 2016-01-21 Last updated: 2016-03-04Bibliographically approved

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Yu, Shun
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Fibre and Polymer TechnologyWallenberg Wood Science Center
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