Issue 11, 2018

Synthesis and structure of a CDO zeolite precursor with a high Al content

Abstract

A new CDO zeolite precursor (PreCDO) with a Si/Al ratio of 8.7, the lowest among the layered precursors of this channel-based small-pore zeolite reported so far, has been synthesized using tetraethylammonium (TEA+) and tetramethylammonium (TMA+) ions in fluoride media. However, both the elemental analysis and 13C MAS NMR results reveal the presence of TEA+ only in PreCDO, although this layered phase did not crystallize without TMA+ or F present. The structure of PreCDO solved by a combination of synchrotron X-ray diffraction Rietveld analysis and computational modeling shows that the ferrierite (fer) layers of PreCDO are stacked with an interlayer distance of 2.7 Å. Its calcination led to a condensation along the a-axis, yielding a highly crystalline CDO zeolite.

Graphical abstract: Synthesis and structure of a CDO zeolite precursor with a high Al content

Supplementary files

Article information

Article type
Research Article
Submitted
19 Qas 2018
Accepted
07 Way 2018
First published
07 Way 2018

Inorg. Chem. Front., 2018,5, 2792-2797

Synthesis and structure of a CDO zeolite precursor with a high Al content

S. H. Ahn, S. Seo, H. Lee and S. B. Hong, Inorg. Chem. Front., 2018, 5, 2792 DOI: 10.1039/C8QI00576A

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements