Validation of surface wettability theories via electrochemical analysis
| Autor: | Chun Haow Kung, Pradeep Kumar Sow, Beniamin Zahiri, Walter Mérida |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Surface (mathematics)
Materials science chemistry.chemical_element Nanotechnology 02 engineering and technology Wetted area 010402 general chemistry 01 natural sciences Capacitance Contact angle Physics::Fluid Dynamics lcsh:Chemistry Sessile drop technique Electrochemistry Composite material 021001 nanoscience & nanotechnology 0104 chemical sciences Condensed Matter::Soft Condensed Matter chemistry lcsh:Industrial electrochemistry lcsh:QD1-999 Wetting Cyclic voltammetry 0210 nano-technology Carbon lcsh:TP250-261 |
| Zdroj: | Electrochemistry Communications, Vol 68, Iss, Pp 95-98 (2016) |
| ISSN: | 1388-2481 |
| Popis: | We have developed an experimental method to quantify the parameters defining the shape of a droplet placed on a rough surface. The parameters include the solid–liquid interfacial area under a sessile drop (measured via cyclic voltammetry) along with the optically measurable properties such as the contact angle and projected geometrical area. Using these parameters, it is possible to quantitatively validate many theoretical models proposed for predicting the wetting behaviour on rough surfaces. Carbon substrates with nanostructured surface features were prepared using plasma treatment to test the predictions from the Cassie-Baxter and Wenzel models. These predictions are compared with our experimental results. Keywords: Wettability, Cassie-Baxter, Wenzel, Capacitance, Wetted area |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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