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Title

Thermal assisted self-organization of calcium carbonate

AuthorsZhang, Gan ; Verdugo Escamilla, Cristóbal ; Choquesillo Lazarte, Duane; García Ruiz, Juan Manuel
KeywordsCalcium
Carbonate
Biomimetics
Issue Date12-Jan-2018
PublisherNature Publishing Group
CitationNature Communications 9: 5221 (2018)
AbstractFabrication of mineral multi-textured architectures by self-organization is a formidable challenge for engineering. Current approaches follow a biomimetic route for hybrid materials based on the coupling of carbonate and organic compounds. We explore here the chemical coupling of silica and carbonate, leading to fabrication of inorganic¿inorganic biomimetic structures known as silica-carbonate biomorphs. So far, biomorphic structures were restricted to orthorhombic barium, strontium, and calcium carbonate. We demonstrate that, monohydrocalcite a hydrous form of calcium carbonate with trigonal structure can also form biomorphic structures, thus showing biomorphic growth is not dictated by the carbonate crystal structure. We show that it is possible to control the growth regime, and therefore the texture and overall shape, by tuning the growth temperature, thereby shifting the textural pattern within the production of a given architecture. This finding opens a promising route to the fabrication of complex multi-textured self-organized material made of silica and chalk.
Publisher version (URL)http://dx.doi.org/10.1038/s41467-018-07658-0
URIhttp://hdl.handle.net/10261/209526
Identifiersdoi: 10.1038/s41467-018-07658-0
issn: 2041-1723
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