Altering the influence of ceria oxygen vacancies in Ni/CexSiyO2 for photothermal CO2 methanation

2021 ◽  
Author(s):  
Salina Jantarang ◽  
Emma Catherine Lovell ◽  
Tze Hao Tan ◽  
Bingqiao Xie ◽  
Jason Scott ◽  
...  
Keyword(s):  
Oxygen Vacancies ◽  
Surface Oxygen ◽  
Co2 Methanation

While the benefit of CeO2 surface oxygen vacancies for CO2 methanation¬ is well established, their role under photothermal conditions has not been probed in depth. In this work, SiO2 was...

Fabrication of surface oxygen vacancies on NiMnAl-LDO catalyst by high-shear mixer-assisted preparation for low-temperature CO2 methanation

Fuel ◽  
2022 ◽  
Vol 309 ◽  
pp. 122099
Author(s):  
Junming Zeng ◽  
Yongkang Sun ◽  
Jie Zhang ◽  
Zhouxin Chang ◽  
Jun Yang ◽  
...  
Keyword(s):  
Low Temperature ◽  
Oxygen Vacancies ◽  
High Shear ◽  
Surface Oxygen ◽  
Co2 Methanation

Decoupling the effect of Ni particle size and surface oxygen deficiencies in CO2 methanation over ceria supported Ni

2021 ◽  
Vol 286 ◽  
pp. 119922
Author(s):  
Ziwen Hao ◽  
Jindong Shen ◽  
Shuangxi Lin ◽  
Xiaoyu Han ◽  
Xiao Chang ◽  
...  
Keyword(s):  
Particle Size ◽  
Surface Oxygen ◽  
Co2 Methanation ◽  
Supported Ni

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.

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