Formation of TiO2 Electrically Insulated Oxide Coatings in Mode of Alternating Current Application

MRS Advances ◽  
2016 ◽  
Vol 1 (46) ◽  
pp. 3163-3168
Author(s):  
Sergey M. Karabanov ◽  
Dmitry V. Suvorov ◽  
Gennady P. Gololobov ◽  
Yulia M. Stryuchkova ◽  
Maria A. Klyagina ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Coating Thickness ◽  
Alternating Current ◽  
Oxide Coatings ◽  
Current Application ◽  
Research Results ◽  
Dc Component ◽  
Component Amplitude

ABSTRACTThe paper presents the research results of formation peculiarities of barrier electrically insulated coatings based on titanium oxide (TiO2) under conditions of AC-DC electrochemical anodizing. It is shown that overlapping of AC component (at the frequency of 100 kHz – 10 MHz) leads to formation of coatings 1.2-1.4 times thicker. Dependences of the coating thickness on frequency under various ratios of the AC-component amplitude to the DC-component of anodizing voltage have been obtained.

Effects of Surface Treatment on Photocattalytic Activity of TiO2 Coatings Using Microarc-Oxidation

2012 ◽  
Vol 454 ◽  
pp. 26-29
Author(s):  
Hui Dong Su ◽  
Zhong Hua Shi
Keyword(s):  
Acetic Acid ◽  
Surface Treatment ◽  
Photocatalytic Degradation ◽  
Titanium Oxide ◽  
Degradation Rate ◽  
Microarc Oxidation ◽  
Oxide Coatings ◽  
Photocatalytic Ability ◽  
Before And After ◽  
Micro Arc Oxidation

Titanium oxide coatings （Ti/TiO2）were formed on the titanium net surface by micro-arc oxidation(MAO) in Na3PO4 solution using an AC power supply. Then the titanium oxide coatings were treated by acetic acid or La(NO3)3 aqueous solution to improve its activity. The structures and photocatalytic ability of titanium oxide coatings before and after surface treatment were characterized and evaluated by XRD, SEM, EDX. It was found that the titanium oxide film is mainly made of titanium and anatase .When acetic acid aqueous concentration is 0.1mol•L-1 and soak time is 6 hour ,the Ti/TiO2 films photocatalytic degradation rate increased from 15% to 33.6%. When La(NO3)3 aqueous concentration is 0.1mol•L-1 and soak time is 12 hour, the Ti/TiO2 films photocatalytic degradation rate increased from 15% to 34.8%.

Reactively Sputter-Deposited Titanium Oxide Coatings with Parallel Penniform Microstructure

2000 ◽  
Vol 12 (5) ◽  
pp. 341-343 ◽  
Author(s):  
J. Rodríguez ◽  
M. Gómez ◽  
J. Lu ◽  
E. Olsson ◽  
C.-G. Granqvist
Keyword(s):  
Titanium Oxide ◽  
Oxide Coatings ◽  
Sputter Deposited

Photo activated performance of titanium oxide coatings deposited by reactive gas impulse magnetron sputtering

2018 ◽  
Vol 349 ◽  
pp. 647-654 ◽  
Author(s):  
W. Pawlak ◽  
M. Jakubowska ◽  
A. Sobczyk-Guzenda ◽  
M. Makówka ◽  
H. Szymanowski ◽  
...  
Keyword(s):  
Magnetron Sputtering ◽  
Titanium Oxide ◽  
Oxide Coatings ◽  
Reactive Gas

Study on Photoelectrocatalytic of Three-Dimensional Electrode Using TiO2 Coated γ-Al2O3 and Scrap Iron Particle Electrode

2011 ◽  
Vol 71-78 ◽  
pp. 972-975 ◽  
Author(s):  
Hui Dong Su ◽  
Hong Lei Du
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Titanium Oxide ◽  
Sol Gel ◽  
Three Dimensional ◽  
Chloride Concentration ◽  
Cell Voltage ◽  
Oxide Coatings ◽  
Photoelectrocatalytic Degradation ◽  
Scrap Iron

Titanium oxide coatings(TiO2/Ti) were formed on the titanium surface by micro-arc oxidation(MAO) in Na3PO4solution.And using the TiO2/Ti as anod electrode, the titanium as counter electrode in the system of three-dimensional electrode.Coated γ- Al2O3(TiO2/γ-Al2O3) that prepared by sol-gel dipcoating method ,and scrap iron mixture as particle electrode, combining with the UV lamp and regulated power supply make up the three-dimensional electrode photoelectrocatalysis system. The photoelectrocatalysis system use 0.02M Na2SO4aqueous solution as supporting electrolyte.The photoelectrocatalytic ability of titanium oxide coatings were evaluated by photoelectrocatalytic degradation of methylene blue aqueous solution.The experiment demonstrate that compare to photoelectrocatalytic degradation of single TiO2/Ti film and only adsorbtion, the photoelectrocatalysis of three-dimensional electrode with coated particle electrode have the synergistic effect with them, which can improve the degradation of methylene blue aqueous solution. When the methylthionine chloride concentration of 5mg/L, cell voltage of 7V. The three-dimensional electrode photoelectrocatalysis degradation of methylene blue compare to traditional two-dimensional plate electrodes which without particle electrode increase 43.35% after 3 hours photoelectrocatalysis.

Characterization of cluster-assembled nanostructured titanium oxide coatings as substrates for protein arrays

2009 ◽  
Vol 394 (1) ◽  
pp. 7-12 ◽  
Author(s):  
Roberta Carbone ◽  
Marzia De Marni ◽  
Andrea Zanardi ◽  
Simone Vinati ◽  
Emanuele Barborini ◽  
...  
Keyword(s):  
Titanium Oxide ◽  
Oxide Coatings ◽  
Protein Arrays ◽  
Nanostructured Titanium
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