at Google ScholarTitle data
Kim, Yi-Yeoun ; Schenk, Anna ; Ihli, Johannes ; Kulak, Alexander N. ; Hetherington, Nicola B. J. ; Tang, Chiu C. ; Schmahl, Wolfgang W. ; Griesshaber, Erika ; Hyett, Geoffrey ; Meldrum, Fiona C.:
A critical analysis of calcium carbonate mesocrystals.
In: Nature Communications.
Vol. 5
(2014)
.
- No. 4341.
ISSN 2041-1723
DOI: https://doi.org/10.1038/ncomms5341
Abstract in another language
The term mesocrystal has been widely used to describe crystals that form by oriented assembly, and that exhibit nanoparticle substructures. Using calcite crystals co-precipitated with polymers as a suitable test case, this article looks critically at the concept of mesocrystals. Here we demonstrate that the data commonly used to assign mesocrystal structure may be frequently misinterpreted, and that these calcite/polymer crystals do not have nanoparticle substructures. Although morphologies suggest the presence of nanoparticles, these are only present on the crystal surface. High surface areas are only recorded for crystals freshly removed from solution and are again attributed to a thin shell of nanoparticles on a solid calcite core. Line broadening in powder X-ray diffraction spectra is due to lattice strain only, precluding the existence of a nanoparticle sub-structure. Finally, study of the formation mechanism provides no evidence for crystalline precursor particles. A re-evaluation of existing literature on some mesocrystals may therefore be required.
Further data
| Item Type: | Article in a journal |
|---|---|
| Refereed: | Yes |
| Institutions of the University: | Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Colloidal Systems > Junior Professor Colloidal Systems - Juniorprof. Dr. Anna Schenk Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Junior Professor Colloidal Systems |
| Result of work at the UBT: | No |
| DDC Subjects: | 500 Science > 540 Chemistry |
| Date Deposited: | 21 Feb 2017 12:41 |
| Last Modified: | 15 Feb 2023 10:18 |
| URI: | https://eref.uni-bayreuth.de/id/eprint/36166 |