Details
| Originalsprache | Englisch |
|---|---|
| Titel des Sammelwerks | 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 |
| ISBN (elektronisch) | 9781509060481 |
| Publikationsstatus | Veröffentlicht - 2017 |
| Extern publiziert | Ja |
Publikationsreihe
| Name | International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz |
|---|---|
| ISSN (Print) | 2162-2027 |
| ISSN (elektronisch) | 2162-2035 |
Abstract
In CaCO 3 nucleation, the role of water remains enigmatic. Changes in THz absorption during the early stages of CaCO 3 nucleation evidence altered coupled motions of hydrated calcium and carbonate ions. By high precision THz absorption measurements we were able to follow the changes in the hydration bond dynamics during nucleation. Our THz data strongly suggest that amorphous CaCO 3 forms through solidification of initially liquid precursors. Polycarboxylates, which stabilize CaCO 3 liquid precursors, significantly enhance the kinetic stability of the metastable liquid-liquid state. The importance of water network dynamics in phase separation mechanisms as tested by THz absorption measurements using a p-Ge spectrometer is likely to be more general for aqueous systems.
ASJC Scopus Sachgebiete
- Energie (insg.)
- Energieanlagenbau und Kraftwerkstechnik
- Ingenieurwesen (insg.)
- Elektrotechnik und Elektronik
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- BibTex
- RIS
2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017. 2017. 8066992 (International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz).
Publikation: Beitrag in Buch/Bericht/Sammelwerk/Konferenzband › Aufsatz in Konferenzband › Forschung › Peer-Review
}
TY - GEN
T1 - Hydration dynamics in CaCO3 nucleation by THz spectroscopy
AU - Sebastiani, F.
AU - Wolf, S.L.P.
AU - Born, B.
AU - Luong, T.Q.
AU - Colfen, H.
AU - Gebauer, D.
AU - Havenith, M.
N1 - Publisher Copyright: © 2017 IEEE.
PY - 2017
Y1 - 2017
N2 - In CaCO 3 nucleation, the role of water remains enigmatic. Changes in THz absorption during the early stages of CaCO 3 nucleation evidence altered coupled motions of hydrated calcium and carbonate ions. By high precision THz absorption measurements we were able to follow the changes in the hydration bond dynamics during nucleation. Our THz data strongly suggest that amorphous CaCO 3 forms through solidification of initially liquid precursors. Polycarboxylates, which stabilize CaCO 3 liquid precursors, significantly enhance the kinetic stability of the metastable liquid-liquid state. The importance of water network dynamics in phase separation mechanisms as tested by THz absorption measurements using a p-Ge spectrometer is likely to be more general for aqueous systems.
AB - In CaCO 3 nucleation, the role of water remains enigmatic. Changes in THz absorption during the early stages of CaCO 3 nucleation evidence altered coupled motions of hydrated calcium and carbonate ions. By high precision THz absorption measurements we were able to follow the changes in the hydration bond dynamics during nucleation. Our THz data strongly suggest that amorphous CaCO 3 forms through solidification of initially liquid precursors. Polycarboxylates, which stabilize CaCO 3 liquid precursors, significantly enhance the kinetic stability of the metastable liquid-liquid state. The importance of water network dynamics in phase separation mechanisms as tested by THz absorption measurements using a p-Ge spectrometer is likely to be more general for aqueous systems.
UR - http://www.scopus.com/inward/record.url?scp=85033692897&partnerID=8YFLogxK
U2 - 10.1109/irmmw-thz.2017.8066992
DO - 10.1109/irmmw-thz.2017.8066992
M3 - Conference contribution
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - 2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
ER -