Metastability Limit for the Nucleation of NaCl Crystals in Confinement

Désarnaud, Julie; Derluyn, Hannelore; Carmeliet, Jan; Bonn, Daniel; Shahidzadeh, Noushine

doi:10.1021/jz500090x

Cited by 98 publications

(146 citation statements)

References 47 publications

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“…4,5 Humidity cycling that may occur naturally (our RH values are typical of European summers and winters) is observed here to lead to the formation of larger and larger crystals. These typically form after several cycles and at high supersaturations, 28,29 and since the crystallization pressure is directly given by the supersaturation, this may lead to severe damage of sodium chloride contaminated sandstone. FIG.…”

Section: Resultsmentioning

confidence: 99%

“…24,31 It was recently shown that high supersaturations can be achieved during such recrystallization from homogeneous solutions of sodium chloride. 24,28,29 The increase of salt To confirm this hypothesis, we did some experiments in single square microcapillaries representative of a single pore in the porous network. The result confirms well that with increasing the number of cycles of deliquescence/drying, there is a retraction of the salt solution due to the increase of concentration and the change in the wetting properties of the salt solution.…”

Section: Deliquescence-drying Experimentsmentioning

confidence: 95%

“…The increase of the concentration before the primary nucleation growth also affects the drying rate since the equilibrium vapor pressure above the sample decreases, 29 which slows down the drying. This leads to a slowing down of the evaporation rate in what we previously called the regime 1 "constant rate period" (Fig.…”

Section: Deliquescence-drying Experimentsmentioning

confidence: 99%

“…25 In addition, depending on whether the nucleation is primary (directly from solution) or secondary (from pre-existing crystallites present in the solution), different growth rates and crystallization patterns can result. 22,[26][27][28][29][30][31] In primary nucleation, high supersaturations can be achieved. This is, for example, the case for the evaporation of homogeneous salt solutions in confined systems.…”

Section: Introductionmentioning

confidence: 99%

“…This is, for example, the case for the evaporation of homogeneous salt solutions in confined systems. 29,30 On the other hand, secondary nucleation typically happens around the saturation concentration. 24,25 It is clear from the above that the a)…”

Section: Introductionmentioning

confidence: 99%

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Drying of salt contaminated porous media: Effect of primary and secondary nucleation

Désarnaud

Derluyn

Molari

et al. 2015

Journal of Applied Physics

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Drying of salt contaminated porous media: Effect of primary and secondary nucleationDesarnaud, J.E.; Derluyn, H.; Molari, L.; de Miranda, S.; Cnudde, V.; Shahidzadeh, N.F. Published in:Journal of Applied Physics DOI:10.1063/1.4930292 Link to publication Citation for published version (APA):Desarnaud, J., Derluyn, H., Molari, L., de Miranda, S., Cnudde, V., & Shahidzadeh, N. (2015). Drying of salt contaminated porous media: Effect of primary and secondary nucleation. Journal of Applied Physics, 118(11), [114901]. DOI: 10.1063/1.4930292 General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. The drying of porous media is of major importance for civil engineering, geophysics, petrophysics, and the conservation of stone artworks and buildings. More often than not, stones contain salts that can be mobilized by water (e.g., rain) and crystallize during drying. The drying speed is strongly influenced by the crystallization of the salts, but its dynamics remains incompletely understood. Here, we report that the mechanisms of salt precipitation, specifically the primary or secondary nucleation, and the crystal growth are the key factors that determine the drying behaviour of salt contaminated porous materials and the physical weathering generated by salt crystallization. When the same amount of water is used to dissolve the salt present in a stone, depending on whether this is done by a rapid saturation with liquid water or by a slow saturation using water vapor, different evaporation kinetics and salt weathering due to different crystallization pathways are observed.

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Section: Resultsmentioning

confidence: 99%

Section: Deliquescence-drying Experimentsmentioning

confidence: 95%

Section: Deliquescence-drying Experimentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Drying of salt contaminated porous media: Effect of primary and secondary nucleation

Désarnaud

Derluyn

Molari

et al. 2015

Journal of Applied Physics

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New insights into saline water evaporation from porous media: Complex interaction between evaporation rates, precipitation, and surface temperature

Shokri-Kuehni

Vetter

Webb

et al. 2017

Geophysical Research Letters

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Understanding salt transport and deposition patterns during evaporation from porous media is important in many engineering and hydrological processes such as soil salinization, ecosystem functioning, and land‐atmosphere interaction. As evaporation proceeds, salt concentration increases until it exceeds solubility limits, locally, and crystals precipitate. The interplay between transport processes, crystallization, and evaporation influences where crystallization occurs. During early stages, the precipitated salt creates an evolving porous structure affecting the evaporation kinetics. We conducted a comprehensive series of experiments to investigate how the salt concentration and precipitation influence evaporation dynamics. Our results illustrate the contribution of the evolving salt crust to the evaporative mass losses. High‐resolution thermal imaging enabled us to investigate the complex temperature dynamics at the surface of precipitated salt, providing further confirmation of salt crust contribution to the evaporation. We identify different phases of saline water evaporation from porous media with the corresponding dominant mechanisms in each phase and extend the physical understanding of such processes.

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Self‐Assembly in Hopper‐Shaped Crystals

Yang

Zhang

et al. 2019

Adv Funct Materials

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Hopper shape is a special type of crystal morphology. Hopper‐shaped crystals possess unique properties and show promise in many different applications. The understanding of how the building blocks (atoms, ions, and molecules) assemble into hopper‐shaped crystals and how the environmental factors influence the assembly process is critical to the properties and applications of hopper‐shaped crystals. In this review, the important interfacial instability theories that outline the underlying mechanisms for the formation of hopper‐shaped crystals are discussed. Next, the relevant experimental developments based on three categories of synthetic approaches are discussed: the growth through the control of the solute concentration, the temperature gradient, and the capping agent. At the end of the review, the applications, opportunities, and potential challenges of the hopper‐shaped crystals are discussed.

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Metastability Limit for the Nucleation of NaCl Crystals in Confinement

Cited by 98 publications

References 47 publications

Drying of salt contaminated porous media: Effect of primary and secondary nucleation

Drying of salt contaminated porous media: Effect of primary and secondary nucleation

New insights into saline water evaporation from porous media: Complex interaction between evaporation rates, precipitation, and surface temperature

Self‐Assembly in Hopper‐Shaped Crystals

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