3D nanoflower-structured TiO2 photoanode for efficient photoelectrochemical water splitting

Author(s):  
Xin Li ◽  
Hongxia Li ◽  
Wei Dong ◽  
Haiying Qin ◽  
Junhua Xi ◽  
...  
Author(s):  
Natthapan Sanannam ◽  
Akarawin Pimarnthisakorn ◽  
Anothai Sukvalakunchai ◽  
Pailin Ngaotrakanwiwat

2020 ◽  
Vol 385 ◽  
pp. 123878 ◽  
Author(s):  
Peng Wen ◽  
Feijing Su ◽  
Hui Li ◽  
Yinghui Sun ◽  
Zhiqiang Liang ◽  
...  

2021 ◽  
Author(s):  
Bo Dong ◽  
Fei Li ◽  
Shenglei Feng

N and Ni co-doped BiVO4/TiO2 nanotube arrays photoanode with rich oxygen vacancies is fabricated via sequential hydrothermal-calcination method. Strong visible-infered light absorption, good charge seperation and transfer and improved water...


2020 ◽  
Vol 49 (3) ◽  
pp. 588-592 ◽  
Author(s):  
Fusheng Li ◽  
Ziqi Zhao ◽  
Hao Yang ◽  
Dinghua Zhou ◽  
Yilong Zhao ◽  
...  

A cobalt oxide catalyst prepared by a flame-assisted deposition method on the surface of FTO and hematite for electrochemical and photoelectrochemical water oxidation, respectively.


2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>


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