Effects of Confinement and Topography on Crystallization
A special issue of Crystals (ISSN 2073-4352).
Deadline for manuscript submissions: closed (30 June 2017)
Classical nucleation theory predicts that nucleation on a surface is always favoured in comparison to homogeneous nucleation, which is in agreement with empirical observations that crystals typically grow on container walls and/or on particulate impurities. The probability of nucleation is further enhanced in surface imperfections such as grooves or pits, for which there is also strong experimental evidence and support from simulation studies. In more highly confined systems, such as porous media, not only nucleation may be affected, but also the growth and phase transformation of crystals, which depend on material transport in the medium.
This is a multidisciplinary topic with applications across the sciences, from fundamental chemistry and physics to the pharmaceutical industry, medical implants, atmospheric ice nucleation, the fabrication of optoelectronic devices and the conservation of porous building materials. Among the fundamental challenges are to better understand the large variability of topographical effects with different surfaces, and how to separate the influence of topography from that of surface chemistry. Regarding crystallisation in confinement, some key issues are differentiating between the effects of the confinement on nucleation, and how it influences the subsequent crystal growth. From an applied perspective, the ultimate goal is how to use the new knowledge to achieve better control of crystallisation.
We invite contributions on all aspects of nucleation and crystallisation in confined systems and where topography is an important factor, including crystals forming from vapour, from the melt (liquids) and from solution, in fundamental or applied disciplines.
Dr. Hugo K. Christenson
Manuscript Submission Information
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