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Left: Experimental synchrotron-PDF characterization of the amorphous precursors during the hydration of Portland cement, performed by the ISTerre team. The use of in-situ synchrotron techniques allows observing the early stages of mineral formation (Besselink, et al., in preparation). Right: Example of the kind of interactions leading to the formation of the amorphous precursors, as studied by computer modeling. The relative weight of different physico-chemical parameters on the aggregation barriers can be determined. The synergistic approach will be used in the present project to study the early stages of low-CO2 hydrate formation.
Source publication
Carbonate biominerals form the shells of many marine organisms. These natural cements are formed through a multi-step nucleation pathway, involving the precipitation of metastable phases such as aqueous clusters or amorphous intermediates. These precursor phases interact with small fractions of organic and inorganic ions and molecules, which regula...
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