Carbon dioxide hydrogenation using Ru/YSZ promoted with low-coverage alkaline earth metals

Utilization of CO2, which is the main contributor to the global climate change is one of the means to produce useful chemicals and fuels while at the same time reduce CO2 concentration in the atmosphere. Ruthenium (Ru) was chosen as the probe catalyst in carbon dioxide hydrogenation based on its abi...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2020-05, Vol.864 (1), p.12130
Main Authors: Sze Yen, Tan, Ibrahim, Naimah, Fazara Md Ali, Umi, Kheireddine Aroua, Mohamed
Format: Article
Language:English
Subjects:
Alkaline earth metals
Basicity
Calcium
Carbon dioxide
Catalytic activity
Climate change
Greenhouse effect
Hydrogenation
Magnesium
Methanation
Ruthenium
Selectivity
Solid electrolytes
Yttria-stabilized zirconia
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Summary:Utilization of CO2, which is the main contributor to the global climate change is one of the means to produce useful chemicals and fuels while at the same time reduce CO2 concentration in the atmosphere. Ruthenium (Ru) was chosen as the probe catalyst in carbon dioxide hydrogenation based on its ability to selectively enhance methanation reaction. Ru supported on YSZ solid electrolyte (Ru/YSZ) was modified with alkaline earth metal promoters i.e. calcium (Ca) and magnesium (Mg) at low coverage (0.16%). It was found that Ca-modified system is more favorable to enhance the catalytic activity and selectivity of reaction towards methane production compared to Mg-modified system, perhaps due to the higher basicity of Ca.
ISSN:1757-8981
1757-899X
DOI:10.1088/1757-899X/864/1/012130