材料科学
甲烷
吸收(声学)
硝酸
活性炭
体积热力学
氮气
比表面积
碳纤维
化学工程
分析化学(期刊)
吸附
色谱法
复合材料
有机化学
化学
热力学
复合数
催化作用
物理
工程类
冶金
作者
Seok‐Min Yun,Ju Wan Kim,Hang Jin,Young Ho Kim,Young Seak Lee
出处
期刊:Solid State Phenomena
日期:2008-02-01
卷期号:135: 73-76
被引量:1
标识
DOI:10.4028/www.scientific.net/ssp.135.73
摘要
In this study, methane gas absorption ability of activated carbon (AC) with surface functional group effect, was evaluated after nitric acid and urea treatment of AC surface. Specific surface area and pore distribution of AC were studied through nitrogen absorption isotherm at 77 K. Micro pore volume was calculated through H-K method. Absorbed methane amount was evaluated through volumetric method at room temperature by using auto absorption apparatus. Absorbed methane amount of AC was found to increase with specific surface area increase. Correlation proposed between the methane absorption amount and surface nature indicates that the surface nature plays an important role on the absorption amount at a given temperature.
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