Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation

doi:10.1021/acsami.5b07953

QIBEBT-IR > 多相催化转化研究组

	Solvothermal Metal Metathesis on a Metal-Organic Framework with Constricted Pores and the Study of Gas Separation
	Li, Liangjun1 ; Xue, Haitao 1; Wang, Ying 1; Zhao, Pinhui 2; Zhu, Dandan 2; Jiang, Min 2; Zhao, Xuebo 1
	2015-11-18
发表期刊	ACS APPLIED MATERIALS & INTERFACES
卷号	7 期号:45 页码:25402-25412
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.
文章类型	Article
关键词	Metal-organic Frameworks Constricted Pores Metal Metathesis Adsorbate Density Gas Selectivity Adsorption Kinetics
WOS标题词	Science & Technology ; Technology
DOI	10.1021/acsami.5b07953
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研究方向	Science & Technology - Other Topics ; Materials Science
项目资助者	National Natural Science Foundation of China (NSFC)(21173246) ; NSFC(21473254 ; National Science and Technology Major Project(2011ZX05004-001) ; 21401215)
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS记录号	WOS:000365148600051
引用统计	被引频次：19[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/6783
专题	多相催化转化研究组其他
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.