Triggering and acceleration of xylitol crystallization by seeding and shearing: Rheo-optical and rheological investigation
| Autor: | Miguel Ángel Esteban Navarro, Ana Lázaro, Edith Peuvrel-Disdier, Mónica Delgado, Séverine A.E. Boyer |
|---|---|
| Přispěvatelé: | Centro Universitario de la Defensa, Centra de Huesca, Aragón Institute of Engineering Research [Zaragoza] (I3A), University of Zaragoza - Universidad de Zaragoza [Zaragoza], Centre de Mise en Forme des Matériaux (CEMEF), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS), Spanish Government (Energy Program)Government of Aragon (Ref: T55-17R), Spain,EU Social Fund (FEDER Program 2014–2020 'Building Europe from Aragon') |
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Materials science
Nucleation 02 engineering and technology 010402 general chemistry Xylitol 01 natural sciences law.invention [SPI.MAT]Engineering Sciences [physics]/Materials Crystallinity chemistry.chemical_compound Rheology law Phase Change Materials Sugar alcohols Secondary nucleation Composite material Crystallization Shearing (physics) Rheometry Renewable Energy Sustainability and the Environment food and beverages Shear 021001 nanoscience & nanotechnology 0104 chemical sciences Surfaces Coatings and Films Electronic Optical and Magnetic Materials carbohydrates (lipids) chemistry [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Seeding 0210 nano-technology |
| Zdroj: | Solar Energy Materials and Solar Cells Solar Energy Materials and Solar Cells, Elsevier, 2021, 220, pp.110840. ⟨10.1016/j.solmat.2020.110840⟩ |
| ISSN: | 0927-0248 |
| DOI: | 10.1016/j.solmat.2020.110840⟩ |
| Popis: | International audience; The present study investigates the triggering and acceleration of xylitol crystallization for its use as a short-term TES. The combined effect of seeding and the action of shear on xylitol crystallization at a supercooled temperature has been investigated by direct observations under shear (rheo-optical approach) and by rheometry. The initial seed is an agglomerate of crystals of xylitol. In addition to the more classical erosion and rupture mechanisms leading to the dispersion of crystals, shear has shown to induce the detachment of crystalline dust adhered to the initial seed into the supercooled xylitol. These crystal fragments then serve as sites for secondary nucleation and subsequent crystallization. Rheo-optical observations have allowed the determination of shear conditions to control the size of crystals by dispersion. A second part has been dedicated to the effect of shear on crystallization of xylitol by seeding by means of rheology. The measurements, although not reproducible, clearly show that seeding in presence of shear (for the investigated conditions) is very efficient to trigger and accelerate the crystallization of xylitol. Post-mortem DSC and XRPD analyses of the final crystallized seeded and sheared samples have not shown any effect on the xylitol crystallinity degree. |
| Databáze: | OpenAIRE |
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