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

He Liu, Haitao Zhang, Linfeng Fei, Hongbin Ma, Guoying Zhao, CheeLeung Mak, Xixiang Zhang, Suojiang Zhang

Research output: Contribution to journalArticlepeer-review

9 Scopus citations


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.
Original languageEnglish (US)
Pages (from-to)11126-11136
Number of pages11
Issue number31
StatePublished - 2017

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: 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).


Dive into the research topics of 'Superior acidic catalytic activity and stability of Fe-doped HTaWO6 nanotubes'. Together they form a unique fingerprint.

Cite this