Adsorption of pure SO2 on nanoscaled graphene oxide
| Autor: | Frank Kühl, Manfred J. Hampe, Jörg J. Schneider, Michael Bruns, Deepu J. Babu, Daniel Markert, Sandeep Yadav |
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| Rok vydání: | 2016 |
| Předmět: |
Materials science
General Chemical Engineering Inorganic chemistry Carbon fibers Oxide 02 engineering and technology 010402 general chemistry Molecular sieve complex mixtures 01 natural sciences law.invention chemistry.chemical_compound Adsorption Physisorption law medicine Graphene General Chemistry 021001 nanoscience & nanotechnology 0104 chemical sciences chemistry visual_art visual_art.visual_art_medium 0210 nano-technology Activated carbon medicine.drug |
| Zdroj: | RSC Advances. 6:36834-36839 |
| ISSN: | 2046-2069 |
| DOI: | 10.1039/c6ra07518e |
| Popis: | Adsorption of pure SO2 is studied for the first time on graphene oxide (GO). The adsorption mechanism was found to be fundamentally different from conventional carbon materials like activated carbon or carbon fibers. It was observed that GO binds SO2 only by physisorption (ΔHads = 18.04 kJ mol−1) and still the adsorption capacity was found to be comparable to traditional adsorbents like activated carbon or carbon molecular sieves. The 2D layered morphology as well as the absence of extensive micropores well known to promote SO2 to SO3 conversion are responsible for the observed physisorption characteristics. |
| Databáze: | OpenAIRE |
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