In situ flow pair distribution function analysis to probe the assembly-disassembly-organisation-reassembly (ADOR) mechanism of zeolite IPC-2 synthesis
Abstract
The assembly–disassembly–organisation–reassembly (ADOR) process is an important tool to access zeolite structures that are otherwise unfeasible via hydrothermal methods. In situ flow pair distribution function (PDF) analysis has been used to probe the mechanism of the disassembly and organisation steps, with the disassembly a rapid step that is often difficult to capture. Zeolite UTL was hydrolysed by 6 M hydrochloric acid, with PDF measurements used to monitor framework alterations as the reaction proceeded. The resulting disassembly mechanism shows an initial rapid removal of germanium from the germanium-rich double 4 rings (d4r), followed by silicon rearrangement and gradual silanol condensation to form IPC-2P.
Citation
Russell , S E , Henkelis , S E , Vornholt , S M , Rainer , D N , Chapman , K W & Morris , R E 2021 , ' In situ flow pair distribution function analysis to probe the assembly-disassembly-organisation-reassembly (ADOR) mechanism of zeolite IPC-2 synthesis ' , Materials Advances , vol. Advance Article . https://doi.org/10.1039/d1ma00335f
Publication
Materials Advances
Status
Peer reviewed
ISSN
2633-5409Type
Journal article
Rights
Copyright © 2021 The Author(s). This Open Access Article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Description
The authors S. E. R., S. M. V., and R. E. M. would like to thank the European Research Council for funding opportunities under the Advanced Grant 787073. S. E. H., S. M. V. and D. N. R. would like to thank the EPSRC for funding (EP/K503162/1) (EP/K005499/1) (EP/N509759/1). R. E. M. further acknowledges the OP VVV “Excellent Research Teams” grant under project no. CZ.02.1.01/0.0/0.0/15_003/0000417 – CUCAM.Collections
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