Reversible Manipulation of Photoconductivity Caused by Surface Oxygen Vacancies in Perovskite Stannates with Ultraviolet Light

2021 ◽  
pp. 2107650
Author(s):  
Yujeong Lee ◽  
Daseob Yoon ◽  
Sangbae Yu ◽  
Hyeji Sim ◽  
Yunkyu Park ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Oxygen Vacancies ◽  
Surface Oxygen

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

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.

scholarly journals Efficient Degradation of Phenol and 4‐Nitrophenol by Surface Oxygen Vacancies and Plasmonic Silver Co‐Modified Bi 2 MoO 6 Photocatalysts

2018 ◽  
Vol 24 (69) ◽  
pp. 18463-18478 ◽  
Author(s):  
Huidong Shen ◽  
Wenwen Xue ◽  
Feng Fu ◽  
Jiefang Sun ◽  
Yanzhong Zhen ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Surface Oxygen
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