Activated polypyrrole-derived carbon spheres for superior CO2 uptake at ambient conditions
| Autor: | Mietek Jaroniec, Arosha C. Dassanayake |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Spherical morphology chemistry.chemical_element 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Polypyrrole Co2 adsorption 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Colloid and Surface Chemistry Volume (thermodynamics) chemistry Chemical engineering SPHERES 0210 nano-technology Selectivity Carbon Ambient pressure |
| Zdroj: | Colloids and Surfaces A: Physicochemical and Engineering Aspects. 549:147-154 |
| ISSN: | 0927-7757 |
| DOI: | 10.1016/j.colsurfa.2018.04.002 |
| Popis: | High inherent microporosity of the polypyrrole-derived carbon spheres was further optimized by controlled KOH activation with the intention to achieve high CO2 adsorption capacity. After activation the spherical morphology and nitrogen doping were retained and the volume of micropores, especially ultramicropores, was noticeably enhanced. High ultramicropore volumes of these spheres resulted in the superior CO2 uptakes under ambient pressure, reaching 7.73 mmol g−1 and 5.42 mmol g−1 at 0 °C and 25 °C, respectively. This study shows an effective way for designing of carbon spheres with high CO2 adsorption capacity and selectivity. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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