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Monitoring the assembly-disassembly-organisation-reassembly process of germanosilicate UTL through in situ pair distribution function analysis

DOI: 10.1039/C8TA04320E DOI Help

Authors: Susan E. Henkelis (University of St. Andrews) , Samuel A. Morris (University of St. Andrews; Nanyang Technological University) , Michal Mazur (University of St. Andrews; Charles University) , Paul S. Wheatley (University of St. Andrews) , Lauren N. Mchugh (University of St. Andrews) , Russell Morris (University of St. Andrews; Charles University)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Materials Chemistry A

State: Published (Approved)
Published: August 2018

Abstract: A study into the disassembly and organisation steps of the ADOR process has been undertaken through in situ Pair Distribution Function (PDF) analysis. Three aqueous systems (water, 6 M HCl and 12 M HCl) were introduced to a parent zeolite germanosilicate UTL in a cell. Hydrolysis could be clearly seen when UTL was exposed to water over a period of 8 hr, forming the disorded layered material, IPC-1P. In hydrochloric acid, the hydrolysis step is too quick to observe and a Ge-Cl containing species could be seen. In 6 M HCl, the rearrangement of the interlayer region began after an induction period of 8 hr, with the process still occuring after 15 hr. In 12 M HCl, the rearrangement appears to have come to an end after only 6 hr.

Subject Areas: Materials, Chemistry

Instruments: I15-Extreme Conditions

Added On: 15/08/2018 11:52

Discipline Tags:

Zeolites Chemistry Materials Science Inorganic Chemistry

Technical Tags:

Scattering Pair Distribution Function (PDF)