Modeling the Competition between Polymorphic Phases: Highlights on the Effect of Ostwald Ripening
| Autor: | Yousra Tahri, Elodie Chabanon, Emilie Gagniere, Zdeněk Kožíšek, Denis Mangin, Tijani Bounahmidi |
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| Přispěvatelé: | Laboratoire d'automatique et de génie des procédés (LAGEP), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-École Supérieure Chimie Physique Électronique de Lyon-Centre National de la Recherche Scientifique (CNRS), Ecole Mohammadia d'Ingénieurs (EMI) |
| Rok vydání: | 2016 |
| Předmět: |
Ostwald ripening
Nucleation Thermodynamics 02 engineering and technology 010402 general chemistry 01 natural sciences law.invention symbols.namesake [CHIM.GENI]Chemical Sciences/Chemical engineering law [SPI.GPROC]Engineering Sciences [physics]/Chemical and Process Engineering General Materials Science Growth rate Crystallization Solubility Dissolution ComputingMilieux_MISCELLANEOUS Supersaturation Chemistry General Chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Surface energy 0104 chemical sciences symbols Physical chemistry 0210 nano-technology |
| Zdroj: | Crystal Growth & Design Crystal Growth & Design, American Chemical Society, 2016, 16 (10), pp.5689-5697. ⟨10.1021/acs.cgd.6b00640⟩ |
| ISSN: | 1528-7505 1528-7483 |
| DOI: | 10.1021/acs.cgd.6b00640 |
| Popis: | This work aims to evaluate the effect of Ostwald ripening on the crystallization of polymorphic phases by means of the kinetic equation model, which was adapted to describe the competition between the nucleation, the growth, and the Ostwald ripening of the different phases. The kinetic equation model is a very convenient way to simultaneously implement these three mechanisms and quantify their respective roles on the formation and the dissolution of the clusters. The polymorphic system studied is l-glutamic acid (LGlu), which exhibits two monotropic polymorphs: α LGlu and β LGlu. The model assumptions consider the main differences between both polymorphs (shape, solubility, interfacial energy, and growth rate) as well as the supersaturation decrease. The simulation results at various temperatures show that the crystallization process of small nuclei ( |
| Databáze: | OpenAIRE |
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