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© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.

Abstract

Ruthenium oxide (RuOx) thin films were spin coated by thermal decomposition of alcoholic solutions of RuCl3 on titanium foils and subsequently annealed at 400 °C. The effect of spin coating parameters, such as spinning speed, volume, and molar concentration of the precursor as well as the number of deposits, on the morphology and electrochemical performance of the electrodes was investigated. The films were characterized by scanning electron microscopy (SEM) equipped with energy-dispersive X-ray spectroscopy (EDX), cyclic voltammetry (CV) with and without chloride, and linear sweep voltammetry (LSV). The prepared materials were also compared to drop cast films and spin-coated films obtained by adopting low-temperature intermediate treatments. The results indicate that even dispersion of the oxide layer was always achieved. By tuning the spin coating parameters, it was possible to obtain different electrochemical responses. The most influential parameter is the number of deposits, while the concentration of the precursor salt and the rotation speed were less relevant, under the adopted conditions.

Details

Title
Effect of Spin Coating Parameters on the Electrochemical Properties of Ruthenium Oxide Thin Films
Author
Petrucci, Elisabetta 1 ; Orsini, Monica 2 ; Porcelli, Francesco 2 ; De Santis, Serena 2 ; Sotgiu, Giovanni 2   VIAFID ORCID Logo 

 Department of Chemical Engineering Materials & Environment, Sapienza University of Rome, 00184 Rome, Italy; [email protected] 
 Department of Engineering, Roma Tre University, 00146 Rome, Italy; [email protected] (M.O.); [email protected] (F.P.); [email protected] (S.D.S.) 
First page
83
Publication year
2021
Publication date
2021
Publisher
MDPI AG
e-ISSN
26733293
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2521255210
Copyright
© 2021 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.