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dc.contributor.authorBoon, Matthew
dc.contributor.authorRickard, William
dc.contributor.authorRohl, Andrew
dc.contributor.authorJones, Franca
dc.date.accessioned2020-09-09T00:31:02Z
dc.date.available2020-09-09T00:31:02Z
dc.date.issued2020
dc.identifier.citationBoon, M. and Rickard, W.D.A. and Rohl, A.L. and Jones, F. 2020. Stabilization of Aragonite: Role of Mg2+ and Other Impurity Ions. Crystal Growth and Design. 20 (8): pp. 5006-5017.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/80957
dc.identifier.doi10.1021/acs.cgd.0c00152
dc.description.abstract

Copyright © 2020 American Chemical Society. Aragonite formation and stabilization in seawater is still an area of active investigation since the thermodynamically stable product at room temperature is calcite. In this manuscript, purely inorganic systems that were found to stabilize aragonite were analyzed by various techniques. Dynamic light scattering was used to characterize the nucleation behavior of the system, and it was found that the presence of magnesium ions during crystal formation inhibits nucleation overall, not just calcite nucleation. In addition, it was found that sulfate is not necessary to stabilize aragonite. Microanalysis by energy dispersive X-ray spectroscopy and electron backscatter diffraction revealed that the aragonite that was formed had a disordered core with sodium, magnesium, and sulfate ions incorporated into the structure. To the best of the authors' knowledge this is the first time an amorphous calcium carbonate (ACC) core in aragonite has been visualized in a completely abiotic, synthetic system (i.e., in the absence of organic molecules). Inclusion of these impurities into the structure may explain the stability of aragonite in natural seawaters.

dc.languageEnglish
dc.publisherAMER CHEMICAL SOC
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE0775551
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE130100053
dc.relation.sponsoredbyhttp://purl.org/au-research/grants/arc/LE140100150
dc.subjectScience & Technology
dc.subjectPhysical Sciences
dc.subjectTechnology
dc.subjectChemistry, Multidisciplinary
dc.subjectCrystallography
dc.subjectMaterials Science, Multidisciplinary
dc.subjectChemistry
dc.subjectMaterials Science
dc.subjectAMORPHOUS CALCIUM-CARBONATE
dc.subjectPRECIPITATION KINETICS
dc.subjectARTIFICIAL SEAWATER
dc.subjectSULFATE
dc.subjectMAGNESIUM
dc.subjectCRYSTALLIZATION
dc.subjectTEMPERATURE
dc.subjectNUCLEATION
dc.subjectCACO3
dc.subjectMONOHYDROCALCITE
dc.titleStabilization of Aragonite: Role of Mg2+ and Other Impurity Ions
dc.typeJournal Article
dcterms.source.volume20
dcterms.source.number8
dcterms.source.startPage5006
dcterms.source.endPage5017
dcterms.source.issn1528-7483
dcterms.source.titleCrystal Growth and Design
dc.date.updated2020-09-09T00:31:00Z
curtin.departmentJohn de Laeter Centre (JdLC)
curtin.departmentSchool of Electrical Engineering, Computing and Mathematical Sciences (EECMS)
curtin.departmentSchool of Molecular and Life Sciences (MLS)
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidRohl, Andrew [0000-0003-0038-2785]
curtin.contributor.orcidJones, Franca [0000-0002-8461-8291]
curtin.contributor.orcidRickard, William [0000-0002-8118-730X]
curtin.contributor.orcidBoon, Matthew [0000-0003-0227-7559]
curtin.contributor.researcheridJones, Franca [K-7651-2013]
curtin.contributor.researcheridRickard, William [E-9963-2013]
dcterms.source.eissn1528-7505
curtin.contributor.scopusauthoridRohl, Andrew [7004407294]
curtin.contributor.scopusauthoridJones, Franca [7401454856]
curtin.contributor.scopusauthoridRickard, William [35171231700]
dc.date.embargoEnd2021-05-13


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