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Titanium coated with high-performance nanocrystalline ruthenium oxide synthesized by the microwave-assisted sol-gel procedure

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2016
Authors
Šekularac, Gavrilo
Košević, Milica
Drvenica, Ivana
Dekanski, Aleksandar
Panić, Vladimir
Nikolic, Branislav
Article (Published version)
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Abstract
Ruthenium oxide coating on titanium was prepared by the sol-gel procedure from well-defined colloidal oxide dispersions synthesized by the microwave (MW)-assisted hydrothermal route under defined temperature and pressure heating conditions. The dispersions were characterized by dynamic light scattering (DLS) measurements and scanning electron microscopy (SEM). The electrochemical properties were analyzed as capacitive performances gained by cyclic voltammetry and electrochemical impedance spectroscopy and as the electrocatalytic activity for oxygen evolution from acid solution. The obtained dispersions were polydisperse and contained regular particles and agglomerates of increasing surface energy and decreasing particle size as the MW-assisted heating conditions were intensified. Owing to these features of the precursor dispersions, the obtained coatings had considerably improved capacitive performances and good electrocatalytic activity for oxygen evolution at high overpotentials.
Keywords:
Activated titanium anodes / Dynamic light scattering / Pseudocapacitance / Noble metal oxides / Oxide sols
Source:
Journal of Solid State Electrochemistry, 2016, 20, 11, 3115-3123
Publisher:
  • Springer, New York
Projects:
  • New approach in designing materials for energy conversion and energy storage systems (RS-172060)

DOI: 10.1007/s10008-016-3343-z

ISSN: 1432-8488

WoS: 000386343800020

Scopus: 2-s2.0-84979966877
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/1932
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