| Title |
Effect of electrode potential on the drag force on gold and polyvinyl butyral surfaces in a flowing aqueous fluoride solution |
| Authors |
Ambrulevičius, Filipas ; Pulmanas, Arūnas ; Plaušinaitis, Deivis ; Daujotis, Vytautas |
| DOI |
10.20964/2019.01.62 |
| Full Text |
|
| Is Part of |
International journal of electrochemical science.. Belgrade : ESG. 2019, vol. 14, iss. 1, p. 441-452.. ISSN 1452-3981 |
| Keywords [eng] |
Drag force ; Gold surface ; Polyvinyl butyral surface ; Inerface viscosity ; Quartz resonator |
| Abstract [eng] |
It is shown that positive electrical polarization reduces the drag force on goldand polyvinyl butyral (PVB)-coated spheres immersed in a stream of aqueous sodium fluoride solution. This effect is related to a decrease in the interfacial viscosity of the solution at the positively polarized gold and PVB surfaces, as obtained from quartz resonator measurements. The decrease in viscosity at a polymercoated electrode is larger than that at a gold electrode, which is consistent with drag force measurements. The drag force reduction due to decreased interfacial viscosity at a polymer-coated metallic surface on application of an electrical potential widens the range of possible applications of this effect for active manipulation of wall-bounded liquid flows, given that the use of metal surfaces is limited by their risk of corrosion. |
| Published |
Belgrade : ESG |
| Type |
Journal article |
| Language |
English |
| Publication date |
2019 |
| CC license |
|
