Enhanced Photoelectrochemical Water Splitting of Micro-Arc Oxidized TiO2via Anatase/Rutile Phase Control and Nitrogen Doping

2016 ◽  
Vol 163 (5) ◽  
pp. H278-H285 ◽  
Author(s):  
Sung-Ran Woo ◽  
Yun-Mo Sung
Keyword(s):  
Water Splitting ◽  
Nitrogen Doping ◽  
Rutile Phase ◽  
Phase Control ◽  
Photoelectrochemical Water Splitting

scholarly journals Understanding the anatase–rutile phase junction in charge separation and transfer in a TiO2 electrode for photoelectrochemical water splitting

2016 ◽  
Vol 7 (9) ◽  
pp. 6076-6082 ◽  
Author(s):  
Ailong Li ◽  
Zhiliang Wang ◽  
Heng Yin ◽  
Shengyang Wang ◽  
Pengli Yan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Charge Separation ◽  
Rutile Phase ◽  
Interface Structure ◽  
Photoelectrochemical Water Splitting ◽  
Tio2 Electrode ◽  
Phase Alignment ◽  
Efficient Charge

The key to phase junctions for efficient charge separation is to consider both the phase alignment and interface structure.

Evaluation of Nitrogen Doping of Tungsten Oxide for Photoelectrochemical Water Splitting

2008 ◽  
Vol 112 (13) ◽  
pp. 5213-5220 ◽  
Author(s):  
Brian Cole ◽  
Bjorn Marsen ◽  
Eric Miller ◽  
Yanfa Yan ◽  
Bobby To ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Water Splitting ◽  
Nitrogen Doping ◽  
Photoelectrochemical Water Splitting

Selective local nitrogen doping in a TiO2 electrode for enhancing photoelectrochemical water splitting

2012 ◽  
Vol 48 (69) ◽  
pp. 8649 ◽  
Author(s):  
Junyu Cao ◽  
Yuanjian Zhang ◽  
Hua Tong ◽  
Peng Li ◽  
Tetsuya Kako ◽  
...  
Keyword(s):  
Water Splitting ◽  
Nitrogen Doping ◽  
Photoelectrochemical Water Splitting ◽  
Tio2 Electrode

Electrochemical and photoelectrochemical water splitting with a CoOx catalyst prepared by flame assisted deposition

2020 ◽  
Vol 49 (3) ◽  
pp. 588-592 ◽  
Author(s):  
Fusheng Li ◽  
Ziqi Zhao ◽  
Hao Yang ◽  
Dinghua Zhou ◽  
Yilong Zhao ◽  
...  
Keyword(s):  
Cobalt Oxide ◽  
Water Splitting ◽  
Water Oxidation ◽  
Oxide Catalyst ◽  
Photoelectrochemical Water Splitting ◽  
Deposition Method ◽  
Photoelectrochemical Water Oxidation

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.

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<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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