Selectivity of Photoelectrochemical Water Splitting on TiO2 Anatase Single Crystals

2019 ◽  
Vol 123 (17) ◽  
pp. 10857-10867 ◽  
Author(s):  
Roman Nebel ◽  
Kateřina Minhová Macounová ◽  
Hana Tarábková ◽  
Ladislav Kavan ◽  
Petr Krtil
Keyword(s):  
Single Crystals ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Tio2 Anatase

Endotaxial Growth of [100]-Oriented TaON Films on LiTaO3 Single Crystals for Enhanced Photoelectrochemical Water Splitting

Solar RRL ◽  
2018 ◽  
Vol 2 (6) ◽  
pp. 1700243 ◽  
Author(s):  
Huiliang Li ◽  
Bo Zhang ◽  
Zeyan Wang ◽  
Peng Wang ◽  
Yuanyuan Liu ◽  
...  
Keyword(s):  
Single Crystals ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting

Oriented attachment growth of hundred-nanometer-size LaTaON2 single crystals in molten salts for enhanced photoelectrochemical water splitting

2018 ◽  
Vol 6 (17) ◽  
pp. 7706-7713 ◽  
Author(s):  
Junkang Zhou ◽  
Chenguang Zhou ◽  
Zhan Shi ◽  
Zhe Xu ◽  
Shicheng Yan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Molten Salt ◽  
Single Crystals ◽  
Water Splitting ◽  
Molten Salts ◽  
Photoelectrochemical Water Splitting ◽  
Oriented Attachment ◽  
Nanometer Size

Largely-sized single crystal photocatalyst was prepared by oriented attachment (OA) in molten salt.

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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