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- In relation to this article, we declare that there is no conflict of interest.
- Publication history
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Received January 22, 2017
Accepted February 28, 2017
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Copyright © KIChE. All rights reserved.
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Development of osmotic repulsive potential using lattice fluid model on ligand capped metallic nanoparticles in gas expanded liquid system
School of Energy, Material & Chemical Engineering, Korea University of Technology and Education, 1600 Chungjeol-ro, Byeongcheno-myun, Dongnam-gu, Cheonan 31253, Korea
Korean Journal of Chemical Engineering, June 2017, 34(6), 1834-1839(6), 10.1007/s11814-017-0058-5
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Abstract
Not only obtaining nano-sized particles, but controlling mono-dispersed nanoparticles has been regarded as one of the important techniques to employ nano-engineering in many disciplines. To fractionate the nanoparticles synthesized, the gas expanded liquid system (GXLs) has proven to be very useful and effective. Many researchers considered the total interaction energy model comprised as a summation of van der Waals attractive potential, the elastic repulsive potential, and the osmotic repulsive potential as a promising thermodynamic model. In previous models, osmotic contribution was modeled based on the rigid lattice model. Consequently, it was impossible to consider the effect of pressure on GXL operation because osmotic repulsive potential based on rigid lattice modal intrinsically could not reflect the pressure influence. We applied a lattice fluid model in the presence of holes to derive better osmotic repulsive potential. Thus, the effect of pressure on nanoparticle synthesis in GXL process has been successfully investigated. A nanoparticle size predicted using this improved model is in a better agreement to that obtained experimentally.
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Anand M, McLeod MC, Bell PW, Roberts CB, J. Phys. Chem. B, 109(48), 22852 (2005)
