Laser-Induced Surface Modification at Anatase TiO2 Nanotube Array Photoanodes for Photoelectrochemical Water Oxidation

2017 ◽  
Vol 121 (32) ◽  
pp. 17121-17128 ◽  
Author(s):  
Yin Xu ◽  
Michael A. Melia ◽  
Lok-kun Tsui ◽  
James M. Fitz-Gerald ◽  
Giovanni Zangari
Keyword(s):  
Surface Modification ◽  
Water Oxidation ◽  
Anatase Tio2 ◽  
Tio2 Nanotube ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Laser Induced Surface Modification ◽  
Photoelectrochemical Water Oxidation

Carbon-doped anatase TiO2 nanotube array/glass and its enhanced photocatalytic activity under solar light

2013 ◽  
Vol 15 ◽  
pp. 53-59 ◽  
Author(s):  
Yun Zhao ◽  
Yan Li ◽  
Cheng-Wei Wang ◽  
Jian Wang ◽  
Xiang-Qian Wang ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Anatase Tio2 ◽  
Tio2 Nanotube ◽  
Solar Light ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Carbon Doped

scholarly journals Electrochemical study of anatase TiO2 nanotube array electrode in electrolyte based on 1,3-diethylimidazolium bis(trifluoromethylsulfonyl)imide ionic liquid

Ionics ◽  
2019 ◽  
Vol 25 (11) ◽  
pp. 5501-5513
Author(s):  
Milan Vraneš ◽  
Nikola Cvjetićanin ◽  
Snežana Papović ◽  
Marko Pavlović ◽  
István Szilágyi ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Anatase Tio2 ◽  
Tio2 Nanotube ◽  
Electrochemical Study ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Array Electrode

scholarly journals Preparation of TiO2 Nanotube Array on the Pure Titanium Surface by Anodization Method and Its Hydrophilicity

Scanning ◽  
2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Jianguo Lin ◽  
Wenhao Cai ◽  
Qing Peng ◽  
Fanbin Meng ◽  
Dechuang Zhang
Keyword(s):  
Applied Voltage ◽  
Tio2 Nanotubes ◽  
Pure Titanium ◽  
Angle Measurement ◽  
Anatase Tio2 ◽  
Tio2 Nanotube ◽  
Tio2 Nanotube Array ◽  
Water Contact ◽  
Nanotube Array ◽  
Anodization Time

In this work, a highly ordered TiO2 nanotube array on pure titanium (Ti) was prepared by anodization. The effects of the applied voltage and anodization time on the microstructure of the TiO2 nanotube arrays were investigated, and their hydrophilicity was evaluated by the water contact angle measurement. It was found that a highly ordered array of TiO2 nanotubes can be formed on the surface of pure Ti by anodized under the applied voltage of 20 V and the anodization time in the range of 6-12 h, and the nanotube diameter and length can be regulated by anodization time. The as-prepared TiO2 nanotubes were in an amorphous structure. After annealing at 550°C for 3 h, the amorphous TiO2 can be transformed to the anatase TiO2 through crystallization. The anatase TiO2 array exhibited a greatly improved hydrophilicity, depending on the order degree of the array and the diameter of the nanotubes. The sample anodized at 20 V for 12 h and then annealed at 550°C for 3 h exhibited a superhydrophilicity due to its highly ordered anatase TiO2 nanotube array with a tube diameter of 103.5 nm.

scholarly journals Zr4+-Doped Anatase TiO2 Nanotube Array Electrode for Electrocatalytic Reduction of L-cystine

Materials ◽  
2020 ◽  
Vol 13 (16) ◽  
pp. 3572
Author(s):  
Weizhen Wang ◽  
Guangxin Wang ◽  
Xuhui Zhao ◽  
Xiaofeng Zhang ◽  
Yuming Tang ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Heat Treatment ◽  
Electrocatalytic Activity ◽  
Oxygen Vacancies ◽  
Anatase Tio2 ◽  
Tio2 Nanotube ◽  
Electrocatalytic Reduction ◽  
Tio2 Nanotube Array ◽  
Nanotube Array ◽  
Array Electrode

A Zr4+-doped anatase TiO2 nanotube array electrode was prepared using a process that included Ti anodizing, chemical immersion, and heat treatment. The compositions, microstructure, and electrochemical properties of the prepared electrodes were characterized. The results show that Zr4+ was successfully introduced into the TiO2 nanotube array electrodes. Because Zr4+ was doped into the crystal structure of the TiO2and replaced a part of Ti4+ to form more oxygen vacancies and Ti3+, the electrocatalytic activity of the prepared electrodes, for the reduction of L-cystine, was significantly improved.

Bifunctional citrate-Ni0.9Co0.1(OH)x layer coated fluorine-doped hematite for simultaneous hole extraction and injection towards efficient photoelectrochemical water oxidation

Nanoscale ◽  
2021 ◽  
Author(s):  
Peng Wang ◽  
Feng Li ◽  
Xuefeng Long ◽  
Tong Wang ◽  
Huan Chai ◽  
...  
Keyword(s):  
Surface Modification ◽  
Oxygen Evolution ◽  
Oxygen Evolution Reaction ◽  
Water Oxidation ◽  
Surface Oxygen ◽  
Co Catalyst ◽  
Photoelectrochemical Water Oxidation

Surface modification by loading a water oxidation co-catalyst (WOC) is generally considered to be an efficient means to optimize the sluggish surface oxygen evolution reaction (OER) of hematite photoanode for...

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