Study of methane and carbon dioxide adsorption capacity by synthetic nanoporous carbon based on pyrogallol-formaldehyde
| Autor: | Abdelmottaleb Ouederni, N. Ben Mansour, Philip L. Llewellyn, W. Djeridi, L. El Mir |
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| Přispěvatelé: | College of Sciences, Department of Physics, Al Imam Mohammad Ibn Saud Islamic University (IMSIU) |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
Thermogravimetric analysis
Materials science Renewable Energy Sustainability and the Environment Nanoporous Inorganic chemistry Energy Engineering and Power Technology 02 engineering and technology [CHIM.MATE]Chemical Sciences/Material chemistry 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics 01 natural sciences 0104 chemical sciences Catalysis chemistry.chemical_compound Fuel Technology Adsorption chemistry Differential thermal analysis Perchloric acid 0210 nano-technology Inert gas Pyrolysis ComputingMilieux_MISCELLANEOUS |
| Zdroj: | International Journal of Hydrogen Energy International Journal of Hydrogen Energy, Elsevier, 2017, 42 (13), pp.8905-8913. ⟨10.1016/j.ijhydene.2016.06.105⟩ |
| ISSN: | 0360-3199 |
| DOI: | 10.1016/j.ijhydene.2016.06.105⟩ |
| Popis: | Nanoporous carbons were synthesized at certain conditions by sol–gel method combined with furnace firing in inert atmosphere from pyrogallol-formaldehyde (PF) mixtures in water using perchloric acid as catalyst. Their morphology was studied experimentally to examine their adsorption capacity for greenhouse gases. The preparation conditions of the nanoporous carbons were explored by changing the pyrolysis temperature. The effect of this factor on determining the pore structures and the adsorption capacities were evaluated. The synthesized xerogels were characterized by X-ray diffraction, nitrogen adsorption–desorption isotherms, thermogravimetric analysis (TGA), differential thermal analysis (DTA), scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The results showed that surface areas and nitrogen adsorption capacity are dependent completely on the pyrolysis temperature. Equilibrium and enthalpies studies for the CO 2 and CH 4 adsorption on PF were measured at room temperature and up to 25 bar. The adsorption capacity on PF was highest for CO 2 and then CH 4 . The best sample shows maximal adsorption capacities as follows 5.50 mmol g −1 of CH 4 and 7.62 mmol g −1 of CO 2 at 25 bar and 30 °C. |
| Databáze: | OpenAIRE |
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