Enhanced Visible Light Sensitization of N-Doped TiO2 Nanotubes Containing Ti-Oxynitride Species Fabricated via Electrochemical Anodization of Titanium Nitride

2018 ◽  
Vol 123 (4) ◽  
pp. 2189-2201 ◽  
Author(s):  
Andrea Merenda ◽  
Akshita Rana ◽  
Albert Guirguis ◽  
De Ming Zhu ◽  
Lingxue Kong ◽  
...  
Keyword(s):  
Visible Light ◽  
Titanium Nitride ◽  
Tio2 Nanotubes ◽  
Electrochemical Anodization ◽  
Doped Tio2

scholarly journals Directly Anodized Sulfur-Doped TiO2 Nanotubes as Improved Anodes for Li-ion Batteries

Batteries ◽  
2020 ◽  
Vol 6 (4) ◽  
pp. 51
Author(s):  
Davood Sabaghi ◽  
Mahmoud Madian ◽  
Ahmad Omar ◽  
Steffen Oswald ◽  
Margitta Uhlemann ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Discharge Capacity ◽  
Tio2 Nanotubes ◽  
Rate Capability ◽  
Pure Tio2 ◽  
Electrochemical Anodization ◽  
Li Ion Batteries ◽  
Doped Tio2 ◽  
Li Ion ◽  
Elemental Doping

TiO2 represents one of the promising anode materials for lithium ion batteries due to its high thermal and chemical stability, relatively high theoretical specific capacity and low cost. However, the electrochemical performance, particularly for mesoporous TiO2, is limited and must be further developed. Elemental doping is a viable route to enhance rate capability and discharge capacity of TiO2 anodes in Li-ion batteries. Usually, elemental doping requires elevated temperatures, which represents a challenge, particularly for sulfur as a dopant. In this work, S-doped TiO2 nanotubes were successfully synthesized in situ during the electrochemical anodization of a titanium substrate at room temperature. The electrochemical anodization bath represented an ethylene glycol-based solution containing NH4F along with Na2S2O5 as the sulfur source. The S-doped TiO2 anodes demonstrated a higher areal discharge capacity of 95 µAh·cm−2 at a current rate of 100 µA·cm−2 after 100 cycles, as compared to the pure TiO2 nanotubes (60 µAh·cm−2). S-TiO2 also exhibited a significantly improved rate capability up to 2500 µA·cm−2 as compared to undoped TiO2. The improved electrochemical performance, as compared to pure TiO2 nanotubes, is attributed to a lower impedance in S-doped TiO2 nanotubes (STNTs). Thus, the direct S-doping during the anodization process is a promising and cost-effective route towards improved TiO2 anodes for Li-ion batteries.

In situ synthesis of carbon doped TiO2 nanotubes with an enhanced photocatalytic performance under UV and visible light

Carbon ◽  
2017 ◽  
Vol 125 ◽  
pp. 544-550 ◽  
Author(s):  
Lijun Ji ◽  
Yuheng Zhang ◽  
Shiyong Miao ◽  
Mindong Gong ◽  
Xi Liu
Keyword(s):  
Visible Light ◽  
Tio2 Nanotubes ◽  
Photocatalytic Performance ◽  
In Situ Synthesis ◽  
Doped Tio2 ◽  
Carbon Doped

scholarly journals Solvothermal synthesis of N-doped TiO2 nanotubes for visible-light-responsive photocatalysis

2008 ◽  
pp. 6372 ◽  
Author(s):  
Zheng Jiang ◽  
Fan Yang ◽  
Nianjun Luo ◽  
Bryan T. T. Chu ◽  
Deyin Sun ◽  
...  
Keyword(s):  
Visible Light ◽  
Solvothermal Synthesis ◽  
Tio2 Nanotubes ◽  
Doped Tio2

Preparation and visible-light-driven photoelectrocatalytic properties of boron-doped TiO2 nanotubes

2008 ◽  
Vol 110 (2-3) ◽  
pp. 239-246 ◽  
Author(s):  
Yaling Su ◽  
Song Han ◽  
Xingwang Zhang ◽  
Xiuqin Chen ◽  
Lecheng Lei
Keyword(s):  
Visible Light ◽  
Tio2 Nanotubes ◽  
Doped Tio2 ◽  
Boron Doped ◽  
Visible Light Driven
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