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题名: Highly enhanced selectivity for the separation of CH4 over N-2 on two ultra-microporous frameworks with multiple coordination modes
作者: Ren, Xinyu1, 2;  Sun, Tianjun1;  Hu, Jiangliang1, 2;  Wang, Shudong1
关键词: Adsorption ;  Metal-organic frameworks ;  Microporous materials ;  CH4/N-2 separation ;  Selectivity
刊名: MICROPOROUS AND MESOPOROUS MATERIALS
发表日期: 2014-03-01
DOI: 10.1016/j.micromeso.2013.11.038
卷: 186, 页:137-145
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Chemistry, Physical ;  Nanoscience & Nanotechnology ;  Materials Science, Multidisciplinary
研究领域[WOS]: Chemistry ;  Science & Technology - Other Topics ;  Materials Science
英文摘要: Two typical ultra-microporous adsorbents namely [Ni-3(HCOO)(6)] and [Co-3(HCOO)(6)] were successfully prepared in a feasible route to scale up using non-corrosive methyl methanoate instead of formic acid. Pure gas and binary gas mixture adsorption equilibria of CH4 and N-2 were conducted on the two compounds to evaluate their CH4 adsorption capacities and selectivities against N-2. The two compounds exhibit preferential adsorption of CH4 over N-2 at 298 K in the pressure range 0.1-1.0 MPa, and the adsorption selectivities of CH4/N-2 mixture are determined to be 6.0-6.5 for [Ni-3(HCOO)(6)] and 5.1-5.8 for [Co-3(HCOO)(6)], respectively. The uniform ultra-micropores and optimal polarizability resulted from multiple coordination modes play the essential roles in their preferential adsorption of CH4 with the highest selectivities up to date, making the two compounds as promising candidates of existing adsorbents for unconventional natural gas upgrading. Crown Copyright (C) 2013 Published by Elsevier Inc. All rights reserved.
关键词[WOS]: METAL-ORGANIC FRAMEWORKS ;  PRESSURE SWING ADSORPTION ;  CARBON MOLECULAR-SIEVE ;  GAS SEPARATION ;  NITROGEN/METHANE SEPARATION ;  DIAMOND FRAMEWORK ;  METHANE ;  CLINOPTILOLITES ;  ZEOLITES ;  SORPTION
语种: 英语
WOS记录号: WOS:000330916600020
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/145428
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Ren, Xinyu,Sun, Tianjun,Hu, Jiangliang,et al. Highly enhanced selectivity for the separation of CH4 over N-2 on two ultra-microporous frameworks with multiple coordination modes[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2014,186:137-145.
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