Long time a go, I came across a journal paper that describes the effect of vial or container diameter on the dispersion stability of nanofluid. It mentioned that, if three vials had the same height but with different diameters the dispersed particles behaviour in the suspension will be different. Technically, the authors fabricated their nanofluids in these different diameters containers and monitored their physical stability, where they found that there is link between the container diameter and the suspension stability.
I was wondering if you have come across this article and probably share it with me because I cannot seem to find it anywhere. Also, if their are any similar articles that discusses the container geometry effect on the nanofluids stability or thermophysical properties then kindly share them with me.
Thank you very much in advance.
Naser
Naser Ali
The dependence of the diameter of nanoparticles and the stability of their dispersion is the basis of nanotechnology and is studied in colloid chemistry. This academic discipline has long been created and is the fundamental basis of nanotechnology. The smaller the nanoparticles (the smaller their diameter), the greater the specific surface area of the nanoparticles. The larger the specific surface, the greater the Gibbs energy of the surface of the dispersed system, the more unstable it is. Our nature is such that any system tends to spontaneously reduce the Gibbs energy of the surface, which means that nanoparticles will spontaneously aggregate, increase in diameter and settle. A system with small particles is more unstable than a system with a large diameter. Read the collection of terms and concepts of colloidal chemistry.
Data Yu.A.Mirgorod, R.V. Grebennikova. Glossary on Colloid Chemistry.
Naser Ali
If we consider the diameter of a water drop in inverse emulsions as a container, then it is directly proportional to the diameter of the nanoparticles that are in it during their synthesis. See article
Article Relationship between size of cadmium sulfide nanoparticles a...
This is also the case for other containers. Therefore, there are few articles on the relationship between the diameter of a container and the stability of dispersed systems.
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