Rationally tuning the separation performances of [M-3(HCOO)(6)] frameworks for CH4/N-2 mixtures via metal substitution
文献类型：期刊论文
| 作者 | Sun, Tianjun1; Liu, Xiaowei1,2; Hu, Jiangliang1,2; Zhao, Shengsheng1; Wang, Shudong1 |
| 刊名 | MICROPOROUS AND MESOPOROUS MATERIALS
 |
| 出版日期 | 2016-05-01 |
| 卷号 | 225页码:456-464 |
| 关键词 | Metal-organic Frameworks Ch4/n-2 Metal Substitution Selectivity Adsorption Behaviour |
| ISSN号 | 1387-1811 |
| DOI | 10.1016/j.micromeso.2016.01.030 |
| 文献子类 | Article |
| 英文摘要 | A series of isostructural ultra-microporous metal-organic framework (MOF) compounds [M-3(HCOO)(6)] (M = Mg, Mn, Co and Ni) have been readily synthesized in large-scale, characterized, and evaluated for the separation of CH4 and N-2. Results indicate that the metallic formates exhibit different CH4 adsorption capacities and distinct CH4/N-2 selectivity in a sequence of Ni > Co > Mg > Mn analogue owing to their varied CH4 affinities. Thereinto, [Ni-3(HCOO)(6)] shows the highest CH4 adsorption capacity of 1.09 mmol/g and CH4/N-2 selectivity up to 6.5 at 0.4 MPa and 298 K in the dynamic experiments, which suggests the most suitable synergistic effect between constricted pores and surface properties among [M-3(HCOO)(6)] frameworks. At the same time, the adsorption behaviour in [M-3(HCOO)(6)] is investigated by NH3-TPD, revealing that the adsorbed NH3 molecules should have two different states. One is that gas molecules stay inside the pores, the other is that gas molecules are adsorbed on the adsorption sites induced by the coordinated metal ions or exposed oxygen of the [M-3(HCOO)(6)], which directly affects the adsorption capacity, the ratio of two states of molecules and the final selectivity. These results confirm that alteration of metal ion plays an important role in the tuning of pore size and internal surface properties, thus providing new clues to design MOFs with different pore characteristics for enhanced gas sorption and separation. (C) 2016 Elsevier Inc. All rights reserved. |
| WOS关键词 | ZEOLITIC IMIDAZOLATE FRAMEWORKS ; PRESSURE SWING ADSORPTION ; ORGANIC FRAMEWORKS ; CARBON-DIOXIDE ; MOLECULAR-SIEVE ; ACTIVATED CARBON ; METHANE STORAGE ; GAS SORPTION ; STRUCTURAL-CHARACTERIZATION ; SELECTIVE ADSORPTION |
| WOS研究方向 | Chemistry ; Science & Technology - Other Topics ; Materials Science |
| 语种 | 英语 |
| WOS记录号 | WOS:000373421700052 |
| 出版者 | ELSEVIER SCIENCE BV |
| 源URL | [http://cas-ir.dicp.ac.cn/handle/321008/170704]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 通讯作者 | Sun, Tianjun; Wang, Shudong |
| 作者单位 | 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, State Key Lab Catalysis, Dalian 116023, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Sun, Tianjun,Liu, Xiaowei,Hu, Jiangliang,et al. Rationally tuning the separation performances of [M-3(HCOO)(6)] frameworks for CH4/N-2 mixtures via metal substitution[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2016,225:456-464. |
| APA | Sun, Tianjun,Liu, Xiaowei,Hu, Jiangliang,Zhao, Shengsheng,&Wang, Shudong.(2016).Rationally tuning the separation performances of [M-3(HCOO)(6)] frameworks for CH4/N-2 mixtures via metal substitution.MICROPOROUS AND MESOPOROUS MATERIALS,225,456-464. |
| MLA | Sun, Tianjun,et al."Rationally tuning the separation performances of [M-3(HCOO)(6)] frameworks for CH4/N-2 mixtures via metal substitution".MICROPOROUS AND MESOPOROUS MATERIALS 225(2016):456-464. |
入库方式： OAI收割
来源：大连化学物理研究所
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