Supra-particle formation by evaporation of aerosol droplets containing binary mixtures of colloidal particles: Controlling the final morphology
We validate the hypothesis of a higher Pe increases the degree of buckling for both unimodal and bimodal nanoparticle size distributions by employing a higher evaporation rate (K) to increase Pe. However, if Pe is increased by lowering the mean diffusion coefficient (D<sub>avg</sub>) at a fixed K, the degree of buckling is reduced. For the binary mixture of nanoparticles of differing size, this can be achieved by reducing the concentration of smaller nanoparticles relative to that of larger nanoparticles. Hence consideration of Pe alone is insufficient to reliably predict the final supra-particle morphology.
Authors
- Lukesh Kumar Mahato (ORCID: https://orcid.org/0000-0002-8774-3186)
- Robert L. Harniman (ORCID: https://orcid.org/0000-0002-3452-1213)
- Rachael E. H. Miles
- Spyridon Varlas (ORCID: https://orcid.org/0000-0002-4171-7572)
- Steven P. Armes (ORCID: https://orcid.org/0000-0002-8289-6351)
- Barnaby E. A. Miles (ORCID: https://orcid.org/0000-0001-7215-9772)
- Daniel Hardy (ORCID: https://orcid.org/0000-0003-0550-5318)
- Jonathan P. Reid (ORCID: https://orcid.org/0000-0001-6022-1778)
- Jean‐Charles Eloi (ORCID: https://orcid.org/0000-0003-3487-3996)
- Derek H. H. Chan
Institutions
- University of Bristol (GB)
- University of Sheffield (GB)
Publication Details
- Journal
- Journal of Colloid and Interface Science
- Published
- 2024-11-23
- DOI
- https://doi.org/10.1016/j.jcis.2024.11.155
- Citations
- 7
- Primary Topic
- Nanomaterials and Printing Technologies
- Type
- article
- Field-Weighted Citation Impact
- 1.46
Funders
- Engineering and Physical Sciences Research Council