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标题：Equilibrium and Thermodynamic Studies of Methane Adsorption on Multi-Walled Carbon Nanotube
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作者：Sanaz. Monemtabary, Mojtaba Shariati Niasar, Mohsen Jahanshahi, Ali Asghar Ghoreyshi
期刊名称：Iranica Journal of Energy and Environment (IJEE)
印刷版ISSN：2079-2115
电子版ISSN：2079-2123
出版年度：2013
期号：3149
页码：17-23
出版社：Noshirvani University of TEchnology
摘要：In this work, The adsorption of methane onto multi-walled carbon nanotubes (MWCNTs) was studied, in which the influences of temperatureand pressure were investigated. The physical properties of the MWCNT were systematically characterised by Scanning Electron Microscopy (SEM) and Brunauere-Emmette-Teller (BET) surface area measurements. The equilibrium adsorption data were analyzed using threecommon adsorption models: Langmuir, Freundlich and Sips. All of the models fit the experimental results well. The adsorption thermodynamic was carried out at 283.15, 298.15 and 313.15 K. The isosteric heat of adosrption( H) was calculated for CH4 and H2, using Claussius–Clapeyron equation. The small amounts of that indicated physical nature of adsorption mechanism.All values were negative, indicating that the adsorption is feasible and exothermic process in nature.