英文论文
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文献类型
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Journal article (JA)
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题名
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Highly rapid mechanochemical synthesis of a pillar-layer metal-organic framework for efficient CH4/N-2 separation
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作者
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Chen, Yongwei; Wu, Houxiao; Yuan, Yinuo; Lv, Daofei; Qiao, Zhiwei; An, Dongli; Wu, Xuanjun; Liang, Hong; Li, Zhong; Xia, Qibin
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作者单位
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[Chen, Yongwei; Wu, Houxiao; Yuan, Yinuo; Lv, Daofei; Li, Zhong; Xia, Qibin] South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China. [Qiao, Zhiwei; Liang, Hong] Guangzhou Univ, Sch Chem & Chem Engn, Guangzhou Key Lab New Energy & Green Catalysis, Guangzhou 510006, Peoples R China. [An, Dongli] Xiamen Univ, Coll Chem & Chem Engn, Xiamen 361000, Peoples R China. [Wu, Xuanjun] Wuhan Univ Technol, Sch Chem Chem Engn & Life Sci, Wuhan 430070, Peoples R China. [Xia, Qibin] South China Univ Technol, Guangdong Prov Key Lab Green Chem Prod Technol, Guangzhou 510640, Peoples R China.
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通讯作者地址
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South China Univ Technol, Sch Chem & Chem Engn, Guangzhou 510640, Peoples R China.
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Email
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zqiao@gzhu.edu.cn; qbxia@scut.edu.cn
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ResearchID
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ORCID
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期刊名称
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Chemical Engineering Journal
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出版社
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Elsevier B.V.
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ISSN
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1385-8947
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出版信息
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2020-04-01, 385 ():-.
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JCR
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1
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影响因子
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13.273
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ISBN
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基金
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National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [21878101, 21576092, 21676094, 21576058]
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会议名称
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会议地点
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会议开始日期
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会议结束日期
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关键词
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Gas adsorption; Grinding (machining); Molecules; Organometallics
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摘要
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Efficient capture of methane (CH4) from nitrogen (N-2) by adsorption separation remains a challenge. In this work, we demonstrate the first solvent-free mechanochemical synthesis of a zinc-based pillar-layer MOF Zn-2(5-aip)(2)(bpy) (1) within minutes, making 1 accessible via a rapid and green route. By rational control of grinding time, the resulting product of 1-4 (which stands for grinding 4 min) has the optimal porosity confirmed by using CO2 as the probe gas. For the recovery of CH4 from N-2 at 5.0 bar and 298 K, the adsorption uptakes of CH4 and N-2 for 1-4 are 1.10 and 0.27 mmol/g, exhibiting preferential adsorption CH4 over N-2 with high CH4/N-2 selectivity of 7.0. The high selectivity of CH4/N-2 in 1-4 is mainly ascribed to the difference in affinity interactions between the pore walls and gas molecules, confirmed by experimental adsorption heat and molecular simulation. Two CH4 molecules can enter in the same pores, but most of the pores can only adsorb one N-2 molecule. Furthermore, the dynamic separation performance for CH4/N-2 mixture in 1-4 is verified by simulated breakthrough curves. The unprecedentedly rapid solvent-free mechanochemical synthesis within minutes makes 1 easily accessible at the gram scale via an environmentally friendly method for accelerating potential application of CH4/N-2 separation.
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一级学科
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Engineering, Environmental; Engineering, Chemical
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WOS入藏号
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WOS:000507465200071
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EI收录号
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20195107877487
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DOI
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10.1016/j.cej.2019.123836
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ESI
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ENGINEERING
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收录于
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SCIE, EI
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