How to make ‘stable’ ACC: protocol and preliminary structural characterization
Abstract
A reproducible and simple protocol to synthesize and stabilize the metastable CaCO3·nH2O phase termed amorphous calcium carbonate (ACC) was developed in order to allow the characterization of its structure at the nanoscale using high-resolution microscopy combined with Raman spectroscopy and X-ray diffraction. ‘Stable’ ACC consists of relatively smooth spherical particles, 50—200 nm in size, that have XRD and Raman patterns with no intense peaks or sharp bands, as expected from amorphous material. Furthermore, high-resolution imaging also supports this finding but in addition, beam-damage induced crystallization and the concomitant formation of locally ordered domains in the ACC spheres are discussed.
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The PXRD and FTIR data for the Mg-ACC precursor phase are identical to those for ACC.
“The PXRD and FTIR data for the Mg-ACC precursor phase are identical to those for ACC (Rodriguez-Blanco et al. 2008, 2011).”
From A route for the direct crystallization of dolomite (2015) · cites this paper as Rodriguez-Blanco et al. 2008
The initial white gel-like phase formed immediately upon mixing the starting supersaturated solutions was poorly ordered, with broad diffraction peaks at approximately 30°, 45°, and 63° 2θ equivalent to ACC.
“The position and width of these peaks are equivalent to those observed for amorphous calcium carbonate (ACC, Rodriguez-Blanco et al. 2008).”
From A route for the direct crystallization of dolomite (2015) · cites this paper as Rodriguez-Blanco et al. 2008
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References 12 · Cited by 87
- Authors
- Rodriguez-Blanco, J. D., Shaw, S., & Benning, L. G.
- Affiliations
- University of Leeds (GB)
- Venue
- Mineralogical Magazine
- Publisher
- Mineralogical Society
- Published
- 2008-02
- Volume
- 72
- Issue
- 1
- Pages
- 283-286
- ISSN
- 0026-461X (ISSN-L)
- 1471-8022
- OpenAlex
- W2083394640
- Cited by
- 87
- References
- 12
- Citations by year
- 2026: 1 · 2025: 6 · 2024: 4 · 2023: 6 · 2022: 10 · 2021: 1 · 2020: 5 · 2019: 4 · 2018: 7 · 2017: 4 · 2016: 8 · 2015: 9 · 2014: 7 · 2013: 4 · 2012: 1
- FWCI
- 1.43
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Mineralogical Magazine (publishedVersion)
- Research Explorer (The University of Manchester) (publishedVersion)
- Publication Database GFZ (GFZ German Research Centre for Geosciences) (submittedVersion)
- Topics
- Physical Sciences › Materials Science › Biomaterials › Calcium Carbonate Crystallization and Inhibition
- Physical Sciences › Earth and Planetary Sciences › Geochemistry and Petrology › Mineralogy and Gemology Studies
- Physical Sciences › Environmental Science › Environmental Engineering › Microbial Applications in Construction Materials
- Keywords
- amorphous calcium carbonate, beam damage, crystallization, spherical nanoparticles, Raman spectroscopy, X-ray diffraction
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