Mild generation of surface oxygen vacancies on CeO2 for improved CO2 photoreduction activity

Nanoscale ◽  
2020 ◽  
Vol 12 (23) ◽  
pp. 12374-12382
Author(s):  
Min Wang ◽  
Meng Shen ◽  
Xixiong Jin ◽  
Jianjian Tian ◽  
Yajun Zhou ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Surface Oxygen ◽  
Co2 Photoreduction

The increased oxygen vacancies at the surface of CeO2 by using the OA–N2 method benefit the photoreduction of CO2 to CO.

scholarly journals Grain-Boundary Surface Terminations Incorporating Oxygen Vacancies for Selectively Boosting CO2 Photoreduction Activity

Nano Energy ◽  
2021 ◽  
pp. 105869
Author(s):  
Xiaojie She ◽  
Xingwang Zhu ◽  
Jinman Yang ◽  
Yanhua Song ◽  
Yuanbin She ◽  
...  
Keyword(s):  
Grain Boundary ◽  
Oxygen Vacancies ◽  
Boundary Surface ◽  
Co2 Photoreduction

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

Influence of oxygen vacancies on the performance of ZnO nanoparticles towards CO2 photoreduction in different aqueous solutions

2020 ◽  
Vol 8 (4) ◽  
pp. 103887
Author(s):  
I.M. Hegazy ◽  
R.A. Geioushy ◽  
S.M. El-Sheikh ◽  
Ahmed Shawky ◽  
S. El-Sherbiny ◽  
...  
Keyword(s):  
Aqueous Solutions ◽  
Zno Nanoparticles ◽  
Oxygen Vacancies ◽  
Co2 Photoreduction

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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