Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation
文献类型：期刊论文
| 作者 | Li, Liangjun1 ; Xue, Haitao1; Wang, Ying1; Zhao, Pinhui2; Zhu, Dandan2; Jiang, Min2; Zhao, Xuebo1
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| 刊名 | ACS APPLIED MATERIALS & INTERFACES
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| 出版日期 | 2015-11-18 |
| 卷号 | 7期号:45页码:25402-25412 |
| 关键词 | metal-organic frameworks constricted pores metal metathesis adsorbate density gas selectivity adsorption kinetics |
| 英文摘要 | Metal-organic frameworks (MOFs) with constricted pores can increase the adsorbate density of gas and facilitate effective CO2 separation from flue gas or natural gas due to their enhanced overlapping of potential fields of the pores. Herein, an MOF with constricted pores, which was formed by narrow channels and blocks of functional groups, was fabricated from the assembly of a methyl-functionalized ligand and Zn(II) centers (termed NPC-7-Zn). Structural analysis of the as-synthesized NPC-7-Zn reveals a series of zigzag pores with pore diameters of similar to 0.7 nm, which could be favorable for CO2 traps. For reinforcing the framework stability, a solvothermal metal metathesis on the pristine MOF NPC-7-Zn was performed, and a new Cu(II) MOF (termed NPC-7-Cu) with an identical framework was produced. The influence of the reaction temperatures on the metal metathesis process was investigated. The results show that the constricted pores in NPC-7-Zn can induce kinetic issues that largely slow the metal metathesis process at room temperature. However, this kinetic issue can be solved by applying higher reaction temperatures. The modified MOF NPC-7-Cu exhibits significant improvements in framework stability and thus leads to a permanent porosity for this framework. The constricted pore structure enables enhanced potential fields for these pores, rendering this MOF with high adsorbate densities for CO2 and high adsorption selectivity for a CO2/N-2 gas mixture. The adsorption kinetic studies reveal that CH4 has a faster diffusion rate constant than CO2, showing a surface diffusion controlled mechanism for CO2 and CH4 adsorption. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary |
| 研究领域[WOS] | Science & Technology - Other Topics ; Materials Science |
| 关键词[WOS] | CARBON-DIOXIDE ADSORPTION ; ZEOLITIC IMIDAZOLATE FRAMEWORKS ; HIGH-CAPACITY HYDROGEN ; HIGH METHANE STORAGE ; FUNCTIONAL-GROUPS ; POROUS MATERIALS ; MOLECULAR-SIEVE ; SINGLE-CRYSTAL ; CO2 BINDING ; SITES |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365148600051 |
| 公开日期 | 2015-12-29 |
| 源URL | [http://ir.qibebt.ac.cn/handle/337004/6783]  |
| 专题 | 青岛生物能源与过程研究所_多相催化转化团队 青岛生物能源与过程研究所_其他 |
| 作者单位 | 1.China Univ Petr East China, Res Inst Unconvent Petr & Renewable, Qingdao 266580, Peoples R China 2.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li, Liangjun,Xue, Haitao,Wang, Ying,et al. Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation[J]. ACS APPLIED MATERIALS & INTERFACES,2015,7(45):25402-25412. |
| APA | Li, Liangjun.,Xue, Haitao.,Wang, Ying.,Zhao, Pinhui.,Zhu, Dandan.,...&Zhao, Xuebo.(2015).Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation.ACS APPLIED MATERIALS & INTERFACES,7(45),25402-25412. |
| MLA | Li, Liangjun,et al."Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation".ACS APPLIED MATERIALS & INTERFACES 7.45(2015):25402-25412. |
入库方式： OAI收割
来源：青岛生物能源与过程研究所
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