Autors: Rusev, R. P., Tzaneva, B. R., Angelov, G. V.
Title: Electrophoretic Deposition of Rochelle Salt Nanocrystals on Aluminum Plate
Keywords: anti-solvent precipitation; electrophoretic deposition; nano

Abstract: A straightforward and inexpensive electrophoretic method for obtaining environment-friendly nanocrystalline piezo layers from Rochelle salt (RS) is presented here. The electrophoretic deposition process includes the formation of nanocrystals by precipitation of Rochelle salt/water solutions in ethanol (anti-solvent method) under the influence of a high electric field. A nanoporous anodic aluminum oxide membrane is used to separate the electrochemical cell into two chambers. The composition of the RS:H2O:EtOH mixture and the spatial separation of the process of precipitation from electrophoretic deposition allow control of the nanocrystal size and the uniformity of the layer. The reaction kinetics, the morphology, and the piezo response to the resulting layers are all investigated. The best samples were obtained at RS:H2O:EtOH ratio 1:22.5:37.5. Under these conditions, the nanocrystals are preferentially oriented on the aluminum substrate and form a dense and homogeneous layer.

References

    Issue

    Coatings, vol. 13, issue 6, pp. 1074, 2023, Switzerland, MDPI, ISSN 20796412

    Copyright MDPI

    Вид: статия в списание, публикация в издание с импакт фактор, публикация в реферирано издание, индексирана в Scopus и Web of Science