دورية أكاديمية
Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption
| العنوان: | Hierarchically structured nanoporous carbon tubes for high pressure carbon dioxide adsorption |
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| المؤلفون: | Julia Patzsch, Deepu J. Babu, Jörg J. Schneider |
| المصدر: | Beilstein Journal of Nanotechnology, Vol 8, Iss 1, Pp 1135-1144 (2017) |
| بيانات النشر: | Beilstein-Institut, 2017. |
| سنة النشر: | 2017 |
| المجموعة: | LCC:Technology LCC:Chemical technology LCC:Science LCC:Physics |
| مصطلحات موضوعية: | carbon dioxide adsorption, carbon tubes, gas adsorption, mesoporous carbon, Technology, Chemical technology, TP1-1185, Science, Physics, QC1-999 |
| الوصف: | Mesoscopic, nanoporous carbon tubes were synthesized by a combination of the Stoeber process and the use of electrospun macrosized polystyrene fibres as structure directing templates. The obtained carbon tubes have a macroporous nature characterized by a thick wall structure and a high specific surface area of approximately 500 m²/g resulting from their micro- and mesopores. The micropore regime of the carbon tubes is composed of turbostratic graphitic areas observed in the microstructure. The employed templating process was also used for the synthesis of silicon carbide tubes. The characterization of all porous materials was performed by nitrogen adsorption at 77 K, Raman spectroscopy, infrared spectroscopy, thermal gravimetric analysis (TGA), scanning electron microscopy (SEM) as well as transmission electron microscopy (TEM). The adsorption of carbon dioxide on the carbon tubes at 25 °C at pressures of up to 30 bar was studied using a volumetric method. At 26 bar, an adsorption capacity of 4.9 mmol/g was observed. This is comparable to the adsorption capacity of molecular sieves and vertically aligned carbon nanotubes. The high pressure adsorption process of CO2 was found to irreversibly change the microporous structure of the carbon tubes. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2190-4286 |
| Relation: | https://doaj.org/toc/2190-4286 |
| DOI: | 10.3762/bjnano.8.115 |
| URL الوصول: | https://doaj.org/article/8ce6a02f9d2741d4a717a3ea8042fe3b |
| رقم الأكسشن: | edsdoj.8ce6a02f9d2741d4a717a3ea8042fe3b |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 21904286 |
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| DOI: | 10.3762/bjnano.8.115 |