Thermochemical properties of composites of synthetic zeolite ZSM5 and silver iodide

0039135 - ÚFCH JH 2007 RIV HU eng J - Journal Article
Čuvanová, S. - Reháková, M. - Bastl, Zdeněk - Pollicino, A. - Nagyová, S. - Fajnor, V. Š.
Thermochemical properties of composites of synthetic zeolite ZSM5 and silver iodide.
[Termochemické vlastnosti kompozitů syntetických zeolitů ZSM5 a iodidu stříbra.]
Journal of Thermal Analysis and Calorimetry. Roč. 84, č. 3 (2006), s. 721-726. ISSN 1388-6150. E-ISSN 1588-2926
R&D Projects: GA AV ČR KSK4040110
Grant - others:Scientific Grant Agency of the Slovak Republic(SK) 1/1385/04; Scientific Grant Agency of the Slovak Republic(SK) 1/1373/04
Institutional research plan: CEZ:AV0Z40400503
Keywords : silver iodide * synthetic zeolite * thermal analysis * XPS * X-ray
Subject RIV: CF - Physical ; Theoretical Chemistry
Impact factor: 1.438, year: 2006

Thermochemical properties of two kinds of composite material of synthetic zeolite ZSM5 in potassium form (K-ZSM5) with AgI have been studied. The composites have been prepared by treating the silver form of synthetic zeolite ZSM5 (Ag-ZSM5) with potassium iodide solution under different experimental conditions. One of the composites was additionally sintered at temperature 500^oC for 20 h. Both composites have been characterized by TG, DTG, DTA, EDS analysis, X-ray powder diffractometry and X-ray photoelectron spectroscopy. The methods of thermal analysis as well as X-ray powder diffractometry and XPS cpnfirmed the differences between the two composites caused by sintering during the synthesis. The content of AgI in the surface layer was different. No changes of the zeolitic mineral dimensions are observed.

Byly studovány termochemické vlastnosti dvou kompozitních materiálů připravených působením roztoku jodidu draselného na Ag formu zeolitu ZSM5. Materiály byly charakterizovány metodami TG, DTG, DTA, EDS, XRD a XPS. Výsledky ukázaly, mimo jiné rozdíly v obsahu AgI v povrchové vrstvě vzorků.
Permanent Link: http://hdl.handle.net/11104/0133298