Investigation of the crystallization reaction of calcium carbonate from amorphous precursor with quasielastic neutron scattering
The crystallization of calcium carbonate is a widely studied process, but still not fully understood, despite its importance in nature and industry. Under some conditions, the process seems to follow non-classical crystallization mechanisms with the formation of a metastable amorphous precursor. The proposed experiment is focused on the investigation of the transformation of this amorphous precursor gel with quasielastic neutron scattering by probing the conversion of structurally/chemically bound water and/or water constrained/confined in the pores of the gel phase, into free water in solution (at the end of the crystallization process). It is the first time that the kinetic analysis of this conversion and the study of water dynamics at fixed times during the reaction, is attempted to provide further insights into the structure and structural evolution of the amorphous calcium carbonate gel.
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SEVCIK Radek; Dita Machová; VIANI Alberto and ZBIRI Mohamed. (2018). Investigation of the crystallization reaction of calcium carbonate from amorphous precursor with quasielastic neutron scattering. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.7-03-167
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