Number of the records: 1
Atomic Force Microscopy of Novel Zeolitic Materials Prepared by Top-Down Synthesis and ADOR Mechanism
- 1.
SYSNO ASEP 0435063 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Atomic Force Microscopy of Novel Zeolitic Materials Prepared by Top-Down Synthesis and ADOR Mechanism Author(s) Smith, R. L. (GB)
Eliášová, Pavla (UFCH-W) RID
Mazur, Michal (UFCH-W) RID
Attfield, M. P. (GB)
Čejka, Jiří (UFCH-W) RID, ORCID, SAI
Anderson, M. W. (GB)Source Title Chemistry - A European Journal. - : Wiley - ISSN 0947-6539
Roč. 20, č. 33 (2014), s. 10446-10450Number of pages 5 s. Language eng - English Country DE - Germany Keywords assembly ; atomic force microscopy ; top-down synthesis Subject RIV CF - Physical ; Theoretical Chemistry R&D Projects GBP106/12/G015 GA ČR - Czech Science Foundation (CSF) Institutional support UFCH-W - RVO:61388955 UT WOS 000340469800036 EID SCOPUS 84905502669 DOI https://doi.org/10.1002/chem.201402887 Annotation Top-down synthesis of 2D materials from a parent 3D zeolite with subsequent post-synthetic modification is an interesting method for synthesis of new materials. Assembly, disassembly, organisation, reassembly (ADOR) processes towards novel materials based on the zeolite UTL are now established. Herein, we present the first study of these materials by atomic force microscopy (AFM). AFM was used to monitor the ADOR process through observation of the changes in crystal surface and step height of the products. UTL surfaces were generally complex and contained grain boundaries and low-angle intergrowths, in addition to regular terraces. Hydrolysis of UTL to IPC-1P did not have adverse effects on the surfaces as compared to UTL. The layers remained intact after intercalation and calcination forming novel materials IPC-2 and IPC-4. Measured step heights gave good correlation with the X-ray diffraction determined d(200)-spacing in these materials. However, swelling gave rise to significant changes to the surface topography, with significantly less regular terrace shapes. The pillared material yielded the roughest surface with ill-defined surface features. The results support a mechanism for the majority of these materials in which the UTL layers remain intact during the ADOR process as opposed to dissolving and recrystallising during each step. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2015
Number of the records: 1