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Dataset for "Magnesium Ions Direct the Solid-State Transformation of Amorphous Calcium Carbonate Thin Films to Aragonite, Magnesium-Calcite or Dolomite"
Citation
Zhang, Shuheng and Nahi, Ouassef and Chen, Li and Aslam, Zabeada and Kapur, Nikil and Kim, Yi-Yeoun and Meldrum, Fiona C. (2022) Dataset for "Magnesium Ions Direct the Solid-State Transformation of Amorphous Calcium Carbonate Thin Films to Aragonite, Magnesium-Calcite or Dolomite". University of Leeds. [Dataset] https://doi.org/10.5518/1103
Dataset description
This dataset supports work showing that remarkable control can be achieved over the chemical composition and structure of crystalline calcium carbonate by using heat to drive a pseudomorphic transformation of ACC thin films. The crystal polymorph can be tuned from low magnesium-calcite to pure aragonite, high magnesium-calcite and ultimately dolomite according to the magnesium content of the ACC, and mosaics of large single crystals are generated at elevated temperatures rather than the spherulitic structures formed at room temperature. This methodology also enabled an in situ investigation of the ACC crystallization mechanism using Transmission Electron Microscopy. Finally, our approach can be combined with templating methods to generate arrays of large aragonite single crystals with pre-selected morphologies. These results demonstrate that exceptional control can be achieved through the solid-state transformation of Mg-ACC, which has relevance to both synthetic and biological systems.
| Keywords: | transmission electron microscopy, scanning electron microscopy, Raman, Atomic force microscopy, EDX data | ||||||
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| Subjects: | F000 - Physical sciences > F100 - Chemistry > F120 - Inorganic chemistry F000 - Physical sciences > F100 - Chemistry > F130 - Structural chemistry F000 - Physical sciences > F100 - Chemistry |
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| Divisions: | Faculty of Engineering and Physical Sciences > School of Chemical and Process Engineering Faculty of Engineering and Physical Sciences > School of Chemistry Faculty of Engineering and Physical Sciences > School of Mechanical Engineering |
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| License: | Creative Commons Attribution 4.0 International (CC BY 4.0) | ||||||
| Date deposited: | 28 Oct 2025 13:24 | ||||||
| URI: | https://archive.researchdata.leeds.ac.uk/id/eprint/1478 | ||||||
Files
Documentation
Guide to the data [23kB]  |
Guide to the data (.txt) [3kB] |
Guide to the data [23kB] 
Guide to the data [23kB] Data
supplementary information [1MB] |
SEM data [1MB] |
TEM data [8MB] |
STEM-EDX data [45MB] |
Raman data [11kB] |
AFM data [8MB] |
Optical microscopy images [20MB] |
Fig 1 [9MB] |
Fig 2 [12MB] |
Fig 3 [752kB] |
Fig 4 [8MB] |
Fig 5 [7MB] |
Fig 6 [8MB] |
Fig S1 [650kB] |
Fig S2 [271kB] |
Fig S6 [4MB] |
Fig S7 [279kB] |