Size-related native defect engineering in high intensity ultrasonication of nanoparticles for photoelectrochemical water splitting

2013 ◽  
Vol 6 (3) ◽  
pp. 799 ◽  
Author(s):  
Hongqiang Wang ◽  
Lichao Jia ◽  
Peter Bogdanoff ◽  
Sebastian Fiechter ◽  
Helmuth Möhwald ◽  
...  
Keyword(s):  
Water Splitting ◽  
High Intensity ◽  
Photoelectrochemical Water Splitting ◽  
Native Defect ◽  
Defect Engineering

Vacancy defect engineering of BiVO4 photoanodes for photoelectrochemical water splitting

Nanoscale ◽  
2021 ◽  
Author(s):  
Songcan Wang ◽  
Xin Wang ◽  
Boyan Liu ◽  
Zhaochen Guo ◽  
Kostya Ostrikov ◽  
...  
Keyword(s):  
Hydrogen Production ◽  
Water Splitting ◽  
Vacancy Defect ◽  
Photoelectrochemical Water Splitting ◽  
Defect Engineering ◽  
Promising Technology ◽  
Pec Water Splitting

Photoelectrochemical (PEC) water splitting has been regarded as a promising technology for sustainable hydrogen production. The development of efficient photoelectrode materials is the key to improve the solar-to-hydrogen (STH) conversion...

Defect engineering of ZnS thin films for photoelectrochemical water-splitting under visible light

2016 ◽  
Vol 153 ◽  
pp. 179-185 ◽  
Author(s):  
Fran Kurnia ◽  
Yun Hau Ng ◽  
Rose Amal ◽  
Nagarajan Valanoor ◽  
Judy N. Hart
Keyword(s):  
Thin Films ◽  
Visible Light ◽  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Defect Engineering

scholarly journals Effects of low oxygen annealing on the photoelectrochemical water splitting properties of α-Fe2O3

2020 ◽  
Vol 8 (3) ◽  
pp. 1315-1325 ◽  
Author(s):  
Yoichi Makimizu ◽  
JeongEun Yoo ◽  
Mahshid Poornajar ◽  
Nhat Truong Nguyen ◽  
Hyo-Jin Ahn ◽  
...  
Keyword(s):  
Water Splitting ◽  
Photoelectrochemical Water Splitting ◽  
Low Oxygen ◽  
Defect Engineering ◽  
Oxygen Annealing ◽  
Pec Water Splitting

Low oxygen annealing following anodization is a surprisingly effective method of defect engineering and optimizing α-Fe2O3 electrodes for a maximized photoelectrochemical (PEC) water splitting performance.

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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