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Expanding Pore Size of Al-BDC Metal-Organic Frameworks as a Way to Achieve High Adsorption Selectivity for CO2/CH4 Separation
Sun, Tianjun; Ren, Xinyu; Hu, Jiangliang; Wang, Shudong
刊名JOURNAL OF PHYSICAL CHEMISTRY C
2014-07-24
DOI10.1021/jp411536d
118期:29页:15630-15639
收录类别SCI
文章类型Article
WOS标题词Science & Technology ; Physical Sciences ; Technology
类目[WOS]Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
研究领域[WOS]Chemistry ; Science & Technology - Other Topics ; Materials Science
关键词[WOS]INVERSE GAS-CHROMATOGRAPHY ; CARBON-DIOXIDE ; MIXTURE ADSORPTION ; ACTIVATED CARBONS ; MOLECULAR-SIEVES ; NATURAL-GAS ; CO2 CAPTURE ; METHANE ; CH4 ; PRESSURES
英文摘要The mesostructured Al-BDC metal-organic frameworks (MOFs) with an average pore size of 2.58 rim were prepared via a simplified washing and drying process and applied to the separation of CO2/CH4 mixtures. The adsorption equilibrium and thermodynamics of CH, and CO, were studied in the dynamic processes by the volumetric-chromatographic and inverse gas chromatographic (IGC) methods. The experiments represent that the Al-BDC MOF with large pore size has a much higher CO2/CH4, selectivity of ca. 24 at 303 K in the pressure range 0-1.0 MPa and therefore appears to be a good candidate for the separation of CH, from CO,. The initial heats of adsorption of CH, and CO, on the mesostructured Al-BDC MOFs were determined to be 11.5 and 25.2 kJ mol(-1) by the IGC method, respectively, which are significantly reduced by ca. 2596 compared with that on the microporous Al-BDC MOFs. The results indicate that the expanded pore size not only greatly increases the selectivity of CO, adsorption over CH, but also reduces the adsorption heat, revealing that it should be the desired method to obtain a satisfactory absorbent for CO2/CH4 separation.
语种英语
WOS记录号WOS:000339540700010
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文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/145459
专题中国科学院大连化学物理研究所
作者单位Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China
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Sun, Tianjun,Ren, Xinyu,Hu, Jiangliang,et al. Expanding Pore Size of Al-BDC Metal-Organic Frameworks as a Way to Achieve High Adsorption Selectivity for CO2/CH4 Separation[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2014,118(29):15630-15639.
APA Sun, Tianjun,Ren, Xinyu,Hu, Jiangliang,&Wang, Shudong.(2014).Expanding Pore Size of Al-BDC Metal-Organic Frameworks as a Way to Achieve High Adsorption Selectivity for CO2/CH4 Separation.JOURNAL OF PHYSICAL CHEMISTRY C,118(29),15630-15639.
MLA Sun, Tianjun,et al."Expanding Pore Size of Al-BDC Metal-Organic Frameworks as a Way to Achieve High Adsorption Selectivity for CO2/CH4 Separation".JOURNAL OF PHYSICAL CHEMISTRY C 118.29(2014):15630-15639.
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