Enhanced photoelectrochemical performance of plate-like WO 3 induced by surface oxygen vacancies

2016 ◽  
Vol 68 ◽  
pp. 81-85 ◽  
Author(s):  
Yang Liu ◽  
Jie Li ◽  
Hui Tang ◽  
Wenzhang Li ◽  
Yahui Yang ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Surface Oxygen ◽  
Photoelectrochemical Performance

Chemical reduction-induced surface oxygen vacancies of BiVO4 photoanodes with enhanced photoelectrochemical performance

2021 ◽  
Vol 5 (8) ◽  
pp. 2284-2293
Author(s):  
Yong Peng ◽  
Hao Wu ◽  
Mingjian Yuan ◽  
Fang-Fang Li ◽  
Xingli Zou ◽  
...  
Keyword(s):  
Chemical Treatment ◽  
Oxygen Vacancies ◽  
Sodium Sulfite ◽  
Chemical Reduction ◽  
Surface States ◽  
Reducing Agent ◽  
Surface Oxygen ◽  
Photoelectrochemical Performance ◽  
Reduction Activity ◽  
Mild Reduction

A facile chemical treatment employing a reducing agent sodium sulfite with a mild reduction activity is used to alter the surface states of BiVO4 photoanodes. The sulfite-treated BiVO4 (S-BiVO4) exhibits an enhanced photoelectrochemical performance.

WO3 photoanodes with controllable bulk and surface oxygen vacancies for photoelectrochemical water oxidation

2018 ◽  
Vol 6 (8) ◽  
pp. 3350-3354 ◽  
Author(s):  
Jijie Zhang ◽  
Xiaoxia Chang ◽  
Chengcheng Li ◽  
Ang Li ◽  
Shanshan Liu ◽  
...  
Keyword(s):  
Water Oxidation ◽  
Oxygen Vacancies ◽  
Ozone Treatment ◽  
Surface Oxygen ◽  
Photoelectrochemical Performance ◽  
Hydrogen Annealing ◽  
Bulk Oxygen ◽  
Photoelectrochemical Water Oxidation ◽  
Reduced Surface

WO3 nanoflake photoanodes with suitable bulk oxygen vacancies and reduced surface oxygen vacancies are synthesized by hydrogen annealing and ozone treatment, which exhibit excellent photoelectrochemical performance.

Adjusting surface oxygen vacancies prompted perovskite as high performance cathode for solid oxide fuel cell

2021 ◽  
Vol 865 ◽  
pp. 158746
Author(s):  
Yongchao Niu ◽  
Xiaoju Yin ◽  
Chengzhi Sun ◽  
Xueqin Song ◽  
Naiqing Zhang
Keyword(s):  
Fuel Cell ◽  
Solid Oxide Fuel Cell ◽  
High Performance ◽  
Oxygen Vacancies ◽  
Solid Oxide ◽  
Oxide Fuel ◽  
Surface Oxygen

Defective Fe3+ self-doped spinel ZnFe2O4 with oxygen vacancies for highly efficient photoelectrochemical water splitting

2019 ◽  
Vol 48 (31) ◽  
pp. 11934-11940 ◽  
Author(s):  
Jianmin Wang ◽  
Yunan Wang ◽  
Xinchao Xv ◽  
Yan Chen ◽  
Xi Yang ◽  
...  
Keyword(s):  
Water Splitting ◽  
Oxygen Vacancies ◽  
Photoelectrochemical Water Splitting ◽  
Photoelectrochemical Performance ◽  
Highly Efficient

Defective Fe3+ self-doped spinel ZnFe2O4 with abundant oxygen vacancies exhibits largely enhanced photoelectrochemical performance.

scholarly journals Photocatalytic Overall Water Splitting by SrTiO3 with Surface Oxygen Vacancies

Nanomaterials ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 2572
Author(s):  
Yanfei Fan ◽  
Yan Liu ◽  
Hongyu Cui ◽  
Wen Wang ◽  
Qiaoyan Shang ◽  
...  
Keyword(s):  
Visible Light ◽  
Water Splitting ◽  
Oxygen Vacancies ◽  
Low Cost ◽  
Energy Levels ◽  
Light Response ◽  
Hydrogen Energy ◽  
Surface Oxygen ◽  
Carbon Reduction ◽  
Overall Water Splitting

Strontium Titanate has a typical perovskite structure with advantages of low cost and photochemical stability. However, the wide bandgap and rapid recombination of electrons and holes limited its application in photocatalysis. In this work, a SrTiO3 material with surface oxygen vacancies was synthesized via carbon reduction under a high temperature. It was successfully applied for photocatalytic overall water splitting to produce clean hydrogen energy under visible light irradiation without any sacrificial reagent for the first time. The photocatalytic overall water splitting ability of the as-prepared SrTiO3-C950 is attributed to the surface oxygen vacancies that can make suitable energy levels for visible light response, improving the separation and transfer efficiency of photogenerated carriers.

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