In situ flow pair distribution function analysis to probe the assembly-disassembly-organisation-reassembly (ADOR) mechanism of zeolite IPC-2 synthesis

Samantha E. Russell; Susan E. Henkelis; Simon M. Vornholt; Daniel N. Rainer; Karena W. Chapman; Russell E. Morris

doi:10.1039/d1ma00335f

In situ flow pair distribution function analysis to probe the assembly-disassembly-organisation-reassembly (ADOR) mechanism of zeolite IPC-2 synthesis

Samantha E. Russell
, Susan E. Henkelis
, Simon M. Vornholt
, Daniel N. Rainer
, Karena W. Chapman
, Russell E. Morris

Chemistry

University of St Andrews
Sandia National Laboratories, New Mexico
Stony Brook University

Research output: Contribution to journal › Article › peer-review

12 Scopus citations

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.

Original language	English
Pages (from-to)	7949-7955
Number of pages	7
Journal	Materials Advances
Volume	2
Issue number	24
DOIs	https://doi.org/10.1039/d1ma00335f
State	Published - Dec 21 2021

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title = "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.",

author = "Russell, \{Samantha E.\} and Henkelis, \{Susan E.\} and Vornholt, \{Simon M.\} and Rainer, \{Daniel N.\} and Chapman, \{Karena W.\} and Morris, \{Russell E.\}",

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AU - Russell, Samantha E.

AU - Henkelis, Susan E.

AU - Vornholt, Simon M.

AU - Rainer, Daniel N.

AU - Chapman, Karena W.

AU - Morris, Russell E.

PY - 2021/12/21

Y1 - 2021/12/21

N2 - 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.

AB - 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.

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DO - 10.1039/d1ma00335f

M3 - Article

AN - SCOPUS:85121436513

SN - 2633-5409

VL - 2

SP - 7949

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JO - Materials Advances

JF - Materials Advances

IS - 24

ER -

In situ flow pair distribution function analysis to probe the assembly-disassembly-organisation-reassembly (ADOR) mechanism of zeolite IPC-2 synthesis

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