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dc.contributor.authorLiu, He
dc.contributor.authorZhang, Haitao
dc.contributor.authorFei, Linfeng
dc.contributor.authorMa, Hongbin
dc.contributor.authorZhao, Guoying
dc.contributor.authorMak, CheeLeung
dc.contributor.authorZhang, Xixiang
dc.contributor.authorZhang, Suojiang
dc.date.accessioned2017-10-03T12:49:35Z
dc.date.available2017-10-03T12:49:35Z
dc.date.issued2017
dc.identifier.citationLiu 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.
dc.identifier.issn2040-3364
dc.identifier.issn2040-3372
dc.identifier.pmid28745362
dc.identifier.doi10.1039/c7nr03260a
dc.identifier.urihttp://hdl.handle.net/10754/625705
dc.description.abstractFe-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.
dc.description.sponsorshipThis 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).
dc.publisherRoyal Society of Chemistry (RSC)
dc.relation.urlhttp://pubs.rsc.org/en/Content/ArticleLanding/2017/NR/C7NR03260A#!divAbstract
dc.titleSuperior acidic catalytic activity and stability of Fe-doped HTaWO6 nanotubes
dc.typeArticle
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.identifier.journalNanoscale
dc.contributor.institutionBeijing Key Laboratory of Ionic Liquids Clean Process, Key Laboratory of Green Process and Engineering, State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, PR China
dc.contributor.institutionZhengzhou Institute of Emerging Industrial Technology, Zhengzhou, P R China
dc.contributor.institutionDepartment of Applied Physics and Materials Research Center, The Hong Kong Polytechnic University, Hong Kong
kaust.personMa, Hongbin
kaust.personZhang, Xixiang


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