Rates and mechanisms of calcite growth and its inhibition by strontium
In this work, calcite (calcium carbonate) growth is examined from computational, experimental and theoretical perspectives, specifically molecular dynamics rare event theory simulations and in situ atomic force microscopy (AFM). Simulations of attachment and detachment of ions to steps reveal a comp...
| Main Authors: | , , , |
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| Format: | Conference Paper |
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AMER CHEMICAL SOC
2012
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| Online Access: | http://hdl.handle.net/20.500.11937/16817 |
| _version_ | 1848749285554782208 |
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| author | Stack, A. Bracco, J. Raiteri, Paolo Gale, Julian |
| author_facet | Stack, A. Bracco, J. Raiteri, Paolo Gale, Julian |
| author_sort | Stack, A. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | In this work, calcite (calcium carbonate) growth is examined from computational, experimental and theoretical perspectives, specifically molecular dynamics rare event theory simulations and in situ atomic force microscopy (AFM). Simulations of attachment and detachment of ions to steps reveal a complex reaction chemistry, and the form of these reactions are begun to be incorporated into analytical expressions used to fit the monomolecular step velocities as a function of saturation index, aqueous calcium-to-carbonate ion concentration ratio, and aqueous strontium concentration. Regarding the latter, the effect of the impurity on growth rates is examined and it is found that the amount of strontium necessary to poison growth correlates with the aqueous calcium concentration, but not carbonate. This suggests that strontium interferes with the attachment of aqueous calcium ions. |
| first_indexed | 2025-11-14T07:18:31Z |
| format | Conference Paper |
| id | curtin-20.500.11937-16817 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T07:18:31Z |
| publishDate | 2012 |
| publisher | AMER CHEMICAL SOC |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-168172018-12-14T00:49:57Z Rates and mechanisms of calcite growth and its inhibition by strontium Stack, A. Bracco, J. Raiteri, Paolo Gale, Julian In this work, calcite (calcium carbonate) growth is examined from computational, experimental and theoretical perspectives, specifically molecular dynamics rare event theory simulations and in situ atomic force microscopy (AFM). Simulations of attachment and detachment of ions to steps reveal a complex reaction chemistry, and the form of these reactions are begun to be incorporated into analytical expressions used to fit the monomolecular step velocities as a function of saturation index, aqueous calcium-to-carbonate ion concentration ratio, and aqueous strontium concentration. Regarding the latter, the effect of the impurity on growth rates is examined and it is found that the amount of strontium necessary to poison growth correlates with the aqueous calcium concentration, but not carbonate. This suggests that strontium interferes with the attachment of aqueous calcium ions. 2012 Conference Paper http://hdl.handle.net/20.500.11937/16817 AMER CHEMICAL SOC restricted |
| spellingShingle | Stack, A. Bracco, J. Raiteri, Paolo Gale, Julian Rates and mechanisms of calcite growth and its inhibition by strontium |
| title | Rates and mechanisms of calcite growth and its inhibition by strontium |
| title_full | Rates and mechanisms of calcite growth and its inhibition by strontium |
| title_fullStr | Rates and mechanisms of calcite growth and its inhibition by strontium |
| title_full_unstemmed | Rates and mechanisms of calcite growth and its inhibition by strontium |
| title_short | Rates and mechanisms of calcite growth and its inhibition by strontium |
| title_sort | rates and mechanisms of calcite growth and its inhibition by strontium |
| url | http://hdl.handle.net/20.500.11937/16817 |