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Supercritical Nitrogen Processing for the Purification of Reactive Porous Materials
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Carbon dioxide adsorption and conversion to methane and ethane on hydrogen boride sheets
Taiga Goto1, Shin-Ichi Ito2,3, Satish Laxman Shinde3
1Graduate School of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba, 305-8573, Japan.
Communications Chemistry
|January 25, 2023
Summary
Hydrogen boride (HB) sheets can capture carbon dioxide (CO2). Hydrogen-deficient HB sheets convert CO2 into methane and ethane, showing potential as catalysts for CO2 utilization.
Area of Science:
- Materials Science
- Catalysis
- Surface Chemistry
Background:
- Metal-free two-dimensional materials like hydrogen boride (HB) sheets are emerging.
- Fundamental interactions between HB sheets and small molecules are not well understood.
Purpose of the Study:
- To investigate the adsorption of carbon dioxide (CO2) on hydrogen boride (HB) sheets.
- To explore the catalytic conversion of CO2 using hydrogen-deficient HB sheets.
Main Methods:
- Experimental adsorption studies at 297 K.
- Density functional theory (DFT) calculations.
- Catalytic reaction studies at 423 K in a CO2 atmosphere.
Main Results:
- Hydrogen-deficient HB sheets exhibit CO2 physisorption following the Langmuir model.
- DFT calculations support the experimental adsorption data.
- Hydrogen-deficient HB sheets catalyze the conversion of CO2 to CH4 and C2H6 at 423 K.
Conclusions:
- Hydrogen-deficient HB sheets demonstrate CO2 adsorption capabilities.
- These sheets act as effective catalysts for CO2 conversion, promoting C-C coupling.
- HB sheets show promise for catalytic applications in CO2 utilization.
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