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题名: Facile synthesis of morphology and size-controlled zirconium metal-organic framework UiO-66: the role of hydrofluoric acid in crystallization
作者: Han, Yitong1;  Liu, Min1;  Li, Keyan1;  Zuo, Yi1;  Wei, Yingxu2;  Xu, Shutao2;  Zhang, Guoliang3;  Song, Chunshan1, 4, 5;  Zhang, Zongchao2;  Guo, Xinwen1
刊名: CRYSTENGCOMM
发表日期: 2015
DOI: 10.1039/c5ce00729a
卷: 17, 期:33, 页:6434-6440
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary ;  Crystallography
研究领域[WOS]: Chemistry ;  Crystallography
英文摘要: UiO-66 with crystal size ranging from hundreds of nanometers to a few micrometers and with cubic and cuboctahedral morphologies were synthesized. Crystal size and morphology varied with the additive amount of hydrofluoric acid and the concentration of reactants (ZrCl4 and H2BDC) during solvothermal synthesis. According to energy dispersive spectrometry (EDS) and F-19 MAS NMR measurements, the fluorine ions directly bonded to Zr in the SBUs (secondary building units) in the MOF framework due to their strongest electronegativity. The bonding of the fluorine ions and Zr not only compensated for the charge imbalance of the framework caused by missing linkers but also competed with the linkers to coordinate with the Zr metal centers, thereby controlling the processes of nucleation and growth of the UiO-66 crystals. The samples were further characterized by scanning electron microscopy (SEM), powder X-ray diffraction (XRD), Fourier transform-infrared (FT-IR) spectroscopy, thermogravimetric analysis (TGA) and Ar sorption isotherms, showing that the introduction of fluorine enhanced the thermostability and porosity of UiO-66.
关键词[WOS]: ZR-FUMARATE MOF ;  MODULATED SYNTHESIS ;  AMBIENT CONDITIONS ;  HYDROGEN STORAGE ;  GAS-ADSORPTION ;  DEFECTS ;  EVOLUTION ;  INCREASE ;  INSIGHT ;  GROWTH
语种: 英语
WOS记录号: WOS:000359270700022
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/146444
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.Dalian Univ Technol, Sch Chem Engn, PSU DUT Joint Ctr Energy Res, State Key Lab Fine Chem, Dalian 116024, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Zhejiang Univ Technol, Coll Biol & Environm Engn, Hangzhou 310014, Zhejiang, Peoples R China
4.Penn State Univ, PSU DUT Joint Ctr Energy Res, EMS Energy Inst, University Pk, PA 16802 USA
5.Penn State Univ, Dept Energy & Mineral Engn, University Pk, PA 16802 USA

Recommended Citation:
Han, Yitong,Liu, Min,Li, Keyan,et al. Facile synthesis of morphology and size-controlled zirconium metal-organic framework UiO-66: the role of hydrofluoric acid in crystallization[J]. CRYSTENGCOMM,2015,17(33):6434-6440.
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