• Login
    View Item 
    •   Home
    • Research
    • Articles
    • View Item
    •   Home
    • Research
    • Articles
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Browse

    All of KAUSTCommunitiesIssue DateSubmit DateThis CollectionIssue DateSubmit Date

    My Account

    Login

    Quick Links

    Open Access PolicyORCID LibguideTheses and Dissertations LibguideSubmit an Item

    Statistics

    Display statistics

    Superior acidic catalytic activity and stability of Fe-doped HTaWO6 nanotubes

    • CSV
    • RefMan
    • EndNote
    • BibTex
    • RefWorks
    Type
    Article
    Authors
    Liu, He
    Zhang, Haitao cc
    Fei, Linfeng cc
    Ma, Hongbin
    Zhao, Guoying
    Mak, CheeLeung
    Zhang, Xixiang cc
    Zhang, Suojiang cc
    KAUST Department
    Material Science and Engineering Program
    Physical Science and Engineering (PSE) Division
    Date
    2017
    Permanent link to this record
    http://hdl.handle.net/10754/625705
    
    Metadata
    Show full item record
    Abstract
    Fe-doped HTaWO6 (H1-3xFexTaWO6, x = 0.23) nanotubes as highly active solid acid catalysts were prepared via an exfoliation-scrolling-exchange process. The specific surface area and pore volume of undoped nanotubes (20.8 m2 g-1, 0.057 cm3 g-1) were remarkably enhanced through Fe3+ ion-exchange (>100 m2 g-1, 0.547 cm3 g-1). Doping Fe ions into the nanotubes endowed them with improved thermal stability due to the stronger interaction between the intercalated Fe3+ ions and the host layers. This interaction also facilitated the preservation of effective Brønsted acid sites and the generation of new acid sites. The integration of these functional roles resulted in Fe-doped nanotubes with high acidic catalytic activities in the Friedel-Crafts alkylation of anisole and the esterification of acetic acid. Facile accessibility to active sites, generation of effective Brønsted acid sites, high stability of the tubular structure and strong acid sites were found to synergistically contribute to the excellent acidic catalytic efficiency. Additionally, the activity of cycled nanocatalysts can be easily recovered through annealing treatment.
    Citation
    Liu H, Zhang H, Fei L, Ma H, Zhao G, et al. (2017) Superior acidic catalytic activity and stability of Fe-doped HTaWO6 nanotubes. Nanoscale 9: 11126–11136. Available: http://dx.doi.org/10.1039/c7nr03260a.
    Sponsors
    This work was financially supported by the State's Key Project of Research and Development Plan (no. 2016YFB0100303), the International Cooperation and Exchange of the National Natural Science Foundation of China (no. 51561145020), the National Natural Science Foundation of China (no. 21271175), the Instrument and Equipment Research and Development Project of CAS (no. YZ201221), the CAS Province Cooperation Program (no. 2014JZ0012), and the CAS Henan Province Cooperation Program (no. 2016103).
    Publisher
    Royal Society of Chemistry (RSC)
    Journal
    Nanoscale
    DOI
    10.1039/c7nr03260a
    PubMed ID
    28745362
    Additional Links
    http://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR03260A#!divAbstract
    ae974a485f413a2113503eed53cd6c53
    10.1039/c7nr03260a
    Scopus Count
    Collections
    Articles; Physical Science and Engineering (PSE) Division; Material Science and Engineering Program

    entitlement

     
    DSpace software copyright © 2002-2023  DuraSpace
    Quick Guide | Contact Us | KAUST University Library
    Open Repository is a service hosted by 
    Atmire NV
     

    Export search results

    The export option will allow you to export the current search results of the entered query to a file. Different formats are available for download. To export the items, click on the button corresponding with the preferred download format.

    By default, clicking on the export buttons will result in a download of the allowed maximum amount of items. For anonymous users the allowed maximum amount is 50 search results.

    To select a subset of the search results, click "Selective Export" button and make a selection of the items you want to export. The amount of items that can be exported at once is similarly restricted as the full export.

    After making a selection, click one of the export format buttons. The amount of items that will be exported is indicated in the bubble next to export format.