Nitrogen-rich hierarchically porous polyaniline-based adsorbents for carbon dioxide (CO2) capture
| Autor: | Fatima Hassouna, Ivona Sedlářová, Miroslav Soos, Dušan Kopecký, Anna Beltzung, Edith Mawunya Kutorglo |
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| Rok vydání: | 2019 |
| Předmět: |
Pore size
chemistry.chemical_classification Materials science General Chemical Engineering 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Industrial and Manufacturing Engineering 0104 chemical sciences chemistry.chemical_compound Nitrogen rich Adsorption chemistry Chemical engineering Polyaniline Carbon dioxide Environmental Chemistry 0210 nano-technology Porous medium Porosity |
| Zdroj: | Chemical Engineering Journal. 360:1199-1212 |
| ISSN: | 1385-8947 |
| Popis: | The development of new materials and technologies for CO2 capture has attracted a lot of interest due to the growing concerns about global warming and climate change. Herein, we prepared hierarchically porous materials from cheap precursors – polyaniline and polystyrene nanoparticles (PS NPs) using an easy and new concept based on the removal of the PS NPs during a pre-carbonization step followed by chemical activation. The pore size distribution was easily tuned by varying the size of the sacrificial PS NPs and the intensity of chemical treatment. We obtained an outstanding CO2 capture capacity of our optimum material (9.14 mmol g−1 at 273.15 K and 1 bar). The findings suggest that these materials are promising CO2 sorbents and the approach provides a strategy to design new high-capacity polymer-based carbons for CO2 capture. |
| Databáze: | OpenAIRE |
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