Number of the records: 1
Zeolite framework functionalisation by tuneable incorporation of various metals into the IPC-2 zeolite
- 1.
SYSNO ASEP 0506511 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Zeolite framework functionalisation by tuneable incorporation of various metals into the IPC-2 zeolite Author(s) Mazur, M. (CZ)
Kasneryk, V. (CZ)
Brivio, F. (CZ)
Přech, J. (CZ)
Ochoa-Hernández, Cristina (UFCH-W)
Mayoral, A. (ES)
Kubů, Martin (UFCH-W) RID
Čejka, Jiří (UFCH-W) RID, ORCID, SAISource Title Inorganic Chemistry Frontiers. - : Royal Society of Chemistry - ISSN 2052-1553
Roč. 5, č. 11 (2018), s. 2746-2755Number of pages 10 s. Language eng - English Country GB - United Kingdom Keywords hydrothermal synthesis ; hydrogen-peroxide ; titanosilicate ; catalyst ; acid ; mechanism Subject RIV CF - Physical ; Theoretical Chemistry OECD category Physical chemistry R&D Projects GBP106/12/G015 GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UFCH-W - RVO:61388955 UT WOS 000453914100004 EID SCOPUS 85056273225 DOI 10.1039/c8qi00732b Annotation The incorporation of various metals into the zeolite framework creates opportunities for novel applications, especially in catalysis. The recently developed assembly-disassembly-organisation-reassembly (ADOR) strategy was used to prepare zeolites with IPC-2 (OKO) topology. The layered zeolite precursor (IPC-1P) was modified by incorporating various metals (Al, Zn, Sn, Zr, V, Fe, Hf, and Ti) using a stabilisation process. The resulting materials were characterised by X-ray powder diffraction (XRD), Ar adsorption, scanning electron microscopy (SEM), scanning transmission electron microscopy (STEM), inductively coupled plasma optical emission spectroscopy (ICP-OES), and diffuse reflectance UV-Vis spectroscopy (DR-UV-Vis). The acidity of Al-containing IPC-2 materials was assessed by acetonitrile and pyridine sorption followed by FT-IR spectroscopy, showing overall concentrations of acid sites of 0.863 mmol g(-1) (acetonitrile) and 0.413 mmol g(-1) (pyridine). Titanium containing IPC-2 was examined by selective oxidation of methylphenyl sulfide (MPS) to the corresponding sulfoxide (MPSO). Ti-IPC-2 provided a higher conversion than TS-1 after 60 min (30% and 18% respectively) and showed higher selectivity towards MPSO (77% and 63% respectively). Sn-IPC-2 was tested by Baeyer-Villiger oxidation of norcamphor with aqueous hydrogen peroxide, showing a 3.8% norcamphor conversion and a 1.3% yield of the desired lactone (after 8 h reaction). Therefore, the results reported herein clearly show the successful incorporation of metals into the IPC-2 zeolite framework. Workplace J. Heyrovsky Institute of Physical Chemistry Contact Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Year of Publishing 2020 Electronic address http://hdl.handle.net/11104/0297741
Number of the records: 1