A continuous process for the ultrasonic spray pyrolysis synthesis of RuO2/TiO2 particles and their application as a coating of activated titanium anode

Košević, Milica; Stopić, Srečko; Bulan, Andreas; Kintrup, Jürgen; Weber, Reiner; Stevanović, Jasmina S.; Panić, Vladimir V.; Friedrich, Bernd

doi:10.1016/j.apt.2016.07.015

Cited by 22 publications

(17 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Metallic-oxide electrodes have been widely studied because of their electronic, optical, magnetic and catalytic properties. [1][2][3][4] Electrodes consisting of a titanium substrate covered with an oxide coating are applied as the anode (commonly known as dimensionally stable anode, DSA) in a number of important 996 JIANG et al…”

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Jiang

Zhang

et al. 2018

JSCS

View full text Add to dashboard Cite

La-doped RuO 2-TiO 2 /Ti coating (TRL) and RuO 2-TiO 2 /Ti coating (TR) were prepared by the sol-gel method and thermal treatment. The products were characterized by X-ray diffraction (XRD) analysis and scanning electron microscopy (SEM). The electrochemical properties were investigated by cyclic voltammetry and polarization measurements in O 2 and Cl 2 evolution in H 2 SO 4 and NaCl solution. The XRD analysis showed that in both TRL and TR, the particles of the synthesized coatings were of low crystallinity, and that they were mainly formed of two phases, rutile TiO 2 and RuO 2. SEM confirmed that the surface of TRL and TR coatings had a cracked mud appearance consisting of blocks separated by cracks. The morphology of the TRL coating shows irregular crack blocks, which increased the specific area greatly and provides more active sites. Polarization measurements indicate that the onset potential of chlorine evolution reaction for TRL coating was 1.08 V SCE , which is lower than the value of 1.12 V SCE registered for the TR coating. The onset potentials for oxygen evolution for the two coatings were similar. Cyclic voltammetry shows an improvement of the electrochemical capacity for the La-doped coatings.

show abstract

Section: Introductionmentioning

confidence: 99%

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Jiang

Zhang

et al. 2018

JSCS

View full text Add to dashboard Cite

show abstract

“…24,27,28 When the nominal pyrolysis temperature was increased to extremely high for full conversion of precursors to oxides (800 • C), the coating stability considerably deteriorated. 23,26 At both low and high temperature extremes, the structure of the native RuO 2 -encapsulated TiO 2 spheres was, however, well preserved in the final ATA coating. USP is thus introduced as a synthesis route allowing full coating texture control in the penultimate step of the mixed oxide formation.…”

mentioning

confidence: 99%

“…Most recently, the coupled single-step USP/electrostatic coating deposition setup was applied for the generation of a USP RuO 2 /TiO 2 coating onto expanded titanium. 23 The coating, which can also be prepared on Ti from a USP powder suspension, exhibited typical electrochemical properties of activated titanium anodes (ATAs). 15,24,25 The USP-obtained ATA was found highly stable in brine electrolysis if the pyrolysis temperature was rather low (200 • C) 26 with respect to typical coating formation temperatures (450-500 • C).…”

mentioning

confidence: 99%

“…Furthermore, the electrochemical investigation can be performed in the form of either a thin layer on an appropriate current collector (e.g., glassy carbon) or a coating on a Ti substrate. For the latter, the coating procedure requires a final thermal treatment at 450 • C, 23,26 in order to attain good coating adhesion. In an introductory investigation, the thermal treatment was found disadvantageous, since the electrochemically active surface area of the initial USP powder was considerably decreased.…”

mentioning

confidence: 99%

“…Structure-activity/stability correlations are discussed to elucidate the causes of the apparently opposing findings for the activities of powders and stabilities of the coatings prepared at the two USP temperature extremes (200 and 800 • C). 23,26…”

mentioning

confidence: 99%

See 2 more Smart Citations

Structure–Activity/Stability Correlations from the Electrochemical Dynamic Responses of Titanium Anode Coatings Formed of Ordered TiO₂@RuO₂Microspheres

Košević

Vukićević

Stopić

et al. 2018

J. Electrochem. Soc.

Self Cite

View full text Add to dashboard Cite

Spherical TiO 2 /RuO 2 particles were synthesized by ultrasonic spray pyrolysis (USP) at 200 and 800 • C. The activity for the oxygen and chlorine evolution reactions (OER and CER, respectively) and the dynamic responses from electrochemical impedance spectroscopy (EIS) of the USP powders, as well as of the corresponding coatings on Ti, were analyzed and are discussed. The loss of coating activity is discussed with respect to the differences in the EIS and cyclic voltammetry responses of the coatings in their active and inactive states. The 800 • C-USP sample was found to be more active than the 200 • C-USP sample for both the CER and the OER, whereas the stability of the former was considerably lower. The correlation between the structure, composition and morphology of the powder and the coating with the registered electrochemical properties is discussed. The EIS analysis of the coating resistance distributions induced by the thermal treatment of the powder indicated a complex combination of the pore resistance and the pseudocapacitive charge transfer resistance. An additional coating resistance, due to loose grain boundaries, was introduced into the coatings in their active and inactive state. The EIS analysis indicated the changes in TiO 2-enriched core/RuO 2-enriched shell structure, caused by the USP temperature.

show abstract

Precursor solution concentration-dependent electrochemical supercapacitive behavior of spray-deposited RuO2 films using aqueous/organic solvent mixtures

Chikkegowda¹,

Yadav²

2022

J Appl Electrochem

View full text Add to dashboard Cite

A continuous process for the ultrasonic spray pyrolysis synthesis of RuO2/TiO2 particles and their application as a coating of activated titanium anode

Cited by 22 publications

References 31 publications

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Structure–Activity/Stability Correlations from the Electrochemical Dynamic Responses of Titanium Anode Coatings Formed of Ordered TiO₂@RuO₂Microspheres

Precursor solution concentration-dependent electrochemical supercapacitive behavior of spray-deposited RuO2 films using aqueous/organic solvent mixtures

Contact Info

Product

Resources

About

A continuous process for the ultrasonic spray pyrolysis synthesis of RuO2/TiO2 particles and their application as a coating of activated titanium anode

Cited by 22 publications

References 31 publications

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Synthesis and electrochemistry study for La-doped RuO2-TiO2/Ti coatings

Structure–Activity/Stability Correlations from the Electrochemical Dynamic Responses of Titanium Anode Coatings Formed of Ordered TiO2@RuO2Microspheres

Precursor solution concentration-dependent electrochemical supercapacitive behavior of spray-deposited RuO2 films using aqueous/organic solvent mixtures

Contact Info

Product

Resources

About

Structure–Activity/Stability Correlations from the Electrochemical Dynamic Responses of Titanium Anode Coatings Formed of Ordered TiO₂@RuO₂Microspheres