Jump to main content
Jump to site search

Issue 4, 2016
Previous Article Next Article

Hierarchically porous BEA stannosilicates as unique catalysts for bulky ketone conversion and continuous operation

Author affiliations

Abstract

Pore size limitations typically limit the applicability of Lewis acidic zeolites, such as titano- and stanno-silicates, to catalytic processes based on small-to-mid sized substrates, and increase their rates of deactivation, prohibiting further exploitation. Herein, we demonstrate that tin-containing zeolites possessing modified hierarchical BEA matrices can be prepared. These hierarchical stannosilicates are able to mediate the catalytic conversion of bulky ketone substrates, a pertaining challenge in the field that purely microporous analogues are unable to mediate. Deactivation studies in the continuous regime also demonstrate the exceptional stability of hierarchical Sn-Beta compared to purely microporous Sn-Beta, with <20% loss of activity observed over 700 h on stream. In contrast, the purely microporous analogue lost ±70% activity in only 200 h. To the best of our knowledge, this is the first time a stannosilicate with a beneficial hierarchical BEA framework has been prepared, and the first evidence of cyclododecanone valorisation with stannosilicate catalysts.

Graphical abstract: Hierarchically porous BEA stannosilicates as unique catalysts for bulky ketone conversion and continuous operation

Back to tab navigation

Supplementary files

Publication details

The article was received on 28 Oct 2015, accepted on 17 Dec 2015 and first published on 21 Dec 2015


Article type: Paper
DOI: 10.1039/C5TA08709K
Author version
available:
Download author version (PDF)
Citation: J. Mater. Chem. A, 2016,4, 1373-1382
  •   Request permissions

    Hierarchically porous BEA stannosilicates as unique catalysts for bulky ketone conversion and continuous operation

    A. Al-Nayili, K. Yakabi and C. Hammond, J. Mater. Chem. A, 2016, 4, 1373
    DOI: 10.1039/C5TA08709K

Search articles by author

Spotlight

Advertisements