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    Splitting Mono- and Dibranched Alkane Isomers by a Robust Aluminum-Based Metal–Organic Framework Material with Optimal Pore Dimensions

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    A_jacs.0c01769.pdf
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    Description:
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    Type
    Article
    Authors
    Yu, Liang
    Dong, Xinglong cc
    Gong, Qihan
    Acharya, Shree Ram
    Lin, Yuhan
    Wang, Hao cc
    Han, Yu cc
    Thonhauser, Timo
    Li, Jing cc
    KAUST Department
    Advanced Membranes and Porous Materials Research Center
    Chemical Science Program
    Nanostructured Functional Materials (NFM) laboratory
    Physical Science and Engineering (PSE) Division
    Date
    2020-03-28
    Online Publication Date
    2020-03-28
    Print Publication Date
    2020-04-15
    Embargo End Date
    2021-03-28
    Submitted Date
    2020-02-13
    Permanent link to this record
    http://hdl.handle.net/10754/662423
    
    Metadata
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    Abstract
    The separation of alkanes with different degrees of branching, particularly mono- and dibranched isomers, represents a challenging yet important industrial process for the production of premium gasoline blending components with high octane number. We report here the separation of linear/monobranched and dibranched alkanes through complete molecular sieving by a robust aluminum-based MOF material, Al-bttotb (H3bttotb = 4,4',4″-(benzene-1,3,5-triyltris(oxy))tribenzoicacid). Single- and multicomponent adsorption experiments reveal that the material adsorbs linear and monobranched alkanes, but fully excludes their dibranched isomers. Adsorption sites of alkanes within the MOF channels have been identified by single-crystal X-ray diffraction studies, and the adsorption mechanism was explored through computational calculations and modeling. The highly selective adsorption of the MOF should be attributed to its optimal pore dimensions.
    Citation
    Yu, L., Dong, X., Gong, Q., Acharya, S. R., Lin, Y., Wang, H., … Li, J. (2020). Splitting Mono- and Dibranched Alkane Isomers by a Robust Aluminum-Based Metal–Organic Framework Material with Optimal Pore Dimensions. Journal of the American Chemical Society. doi:10.1021/jacs.0c01769
    Sponsors
    We thank the National Natural Science Foundation of China (21901166) and Guangdong Natural Science Foundation(2019A1515010692) for financial support. Work in the U.S. was entirely supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Award No. DE-SC0019902.
    Publisher
    American Chemical Society (ACS)
    Journal
    Journal of the American Chemical Society
    DOI
    10.1021/jacs.0c01769
    PubMed ID
    32223142
    Additional Links
    https://pubs.acs.org/doi/abs/10.1021/jacs.0c01769
    Relations
    Is Supplemented By:
    • [Dataset]
      . DOI: 10.5517/ccdc.csd.cc244kyt HANDLE: 10754/664876
    Is Supplemented By:
    • [Dataset]
      . DOI: 10.5517/ccdc.csd.cc244kwr HANDLE: 10754/664877
    Is Supplemented By:
    • [Dataset]
      . DOI: 10.5517/ccdc.csd.cc244kxs HANDLE: 10754/664878
    ae974a485f413a2113503eed53cd6c53
    10.1021/jacs.0c01769
    Scopus Count
    Collections
    Articles; Advanced Membranes and Porous Materials Research Center; Physical Science and Engineering (PSE) Division; Chemical Science Program

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