A ZnO/ZnFe2O4 uniform core–shell heterojunction with a tubular structure modified by NiOOH for efficient photoelectrochemical water splitting

2018 ◽  
Vol 47 (35) ◽  
pp. 12181-12187 ◽  
Author(s):  
Yayao Lan ◽  
Zhifeng Liu ◽  
Zhengang Guo ◽  
Xifei Li ◽  
Lei Zhao ◽  
...  
Keyword(s):  
Water Splitting ◽  
Light Absorption ◽  
Tubular Structure ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Pec Water Splitting

It is known that heterojunction photoelectrodes can improve light absorption and accelerate the separation of photogenerated carriers in the field of photoelectrochemical (PEC) water splitting.

Light management in photoelectrochemical water splitting – from materials to device engineering

2021 ◽  
Author(s):  
Yubin Chen ◽  
Wenyu Zhen ◽  
Sebastián Murcia-López ◽  
Fei Lv ◽  
Joan R. Morante ◽  
...  
Keyword(s):  
Solar Energy ◽  
Natural Resources ◽  
Water Splitting ◽  
Light Absorption ◽  
Sea Water ◽  
Photoelectrochemical Water Splitting ◽  
Light Management ◽  
Device Engineering ◽  
Pec Water Splitting

Photoelectrochemical (PEC) water splitting is a very attractive approach to produce clean hydrogen using abundant natural resources such as solar energy and (sea)water. As its primary step, light absorption controls...

Constructing Fe2O3/TiO2 core–shell photoelectrodes for efficient photoelectrochemical water splitting

Nanoscale ◽  
2015 ◽  
Vol 7 (22) ◽  
pp. 10094-10100 ◽  
Author(s):  
Meng Wang ◽  
Myeongwhun Pyeon ◽  
Yakup Gönüllü ◽  
Ali Kaouk ◽  
Shaohua Shen ◽  
...  
Keyword(s):  
Water Splitting ◽  
Shell Structure ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Nanorod Arrays ◽  
Core Shell Structure ◽  
Pec Water Splitting

Fe2O3/TiO2 nanorod arrays with core–shell structure were prepared via a facile hydrothermal and PECVD approach, which show significantly enhanced PEC water splitting ability and stability.

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>

Carrier Engineering of Zr-mediated Ta3N5 Film as Efficient Photoanode for Solar Water Splitting

2021 ◽  
Author(s):  
Xin Zou ◽  
Xueyang Han ◽  
Chengxiong Wang ◽  
Yunkun Zhao ◽  
Chun Du ◽  
...  
Keyword(s):  
Band Structure ◽  
Visible Light ◽  
Water Splitting ◽  
Light Absorption ◽  
Photoelectrochemical Water Splitting ◽  
Promising Candidate ◽  
Visible Light Absorption ◽  
Solar Water ◽  
Solar Water Splitting

Ta3N5 is regarded as a promising candidate material with adequate visible light absorption and band structure for photoelectrochemical water splitting. However, the performance of Ta3N5 is severely limited by the...

Hollow anisotropic semiconductor nanoprisms with highly crystalline frameworks for high-efficiency photoelectrochemical water splitting

2019 ◽  
Vol 7 (14) ◽  
pp. 8061-8072 ◽  
Author(s):  
Erhuan Zhang ◽  
Jia Liu ◽  
Muwei Ji ◽  
Hongzhi Wang ◽  
Xiaodong Wan ◽  
...  
Keyword(s):  
Water Splitting ◽  
Special Interest ◽  
High Efficiency ◽  
Semiconductor Nanostructures ◽  
Photoelectrochemical Water Splitting ◽  
Anisotropic Semiconductor ◽  
Structure Morphology ◽  
Tunable Structure ◽  
Pec Water Splitting

Construction of hollow anisotropic semiconductor nanostructures that possess excellent crystallinity, flexibly tunable structure/morphology and aqueous dispersity is of special interest for photoelectrochemical (PEC) water splitting

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