About: Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	The effect of the presence of water vapor in the gas stream on the absorption spectra of AgH-ZSM-5 zeolites at high temperatures was investigated using UV-Vis DR spectroscopy. Agmn+ silver species exhibiting an absorption band at 37 700 cm-1 are formed in highly loaded AgH-ZSM-5 treated in an oxygen stream. The presence of water in the gas stream results in the fast erosion of the band at 37 700 cm-1 and the intensity of the band is fully recovered under water-free conditions. Agmn+ silver species in the AgH-ZSM-5 zeolite and their optical properties are stable under high-temperature treatment of zeolite under various conditions. Thus, the preparation of chemically/thermally stable sensing material based on silicon-rich zeolites containing metal ion species suitable for sensor applications under sever conditions was demonstrated. The effect of the presence of water vapor in the gas stream on the absorption spectra of AgH-ZSM-5 zeolites at high temperatures was investigated using UV-Vis DR spectroscopy. Agmn+ silver species exhibiting an absorption band at 37 700 cm-1 are formed in highly loaded AgH-ZSM-5 treated in an oxygen stream. The presence of water in the gas stream results in the fast erosion of the band at 37 700 cm-1 and the intensity of the band is fully recovered under water-free conditions. Agmn+ silver species in the AgH-ZSM-5 zeolite and their optical properties are stable under high-temperature treatment of zeolite under various conditions. Thus, the preparation of chemically/thermally stable sensing material based on silicon-rich zeolites containing metal ion species suitable for sensor applications under sever conditions was demonstrated. (en) Pomocí UV-Vis spektroskopie byl zkoumám vliv přítomnosti vodní páry v proudu plynu na absorpční spektra AgH-ZSM-5 zeolitů. Agmn+ specie vykazující absorpční pás na 37 700 cm-1 se tvoří v AgH-ZSM-5 s vysokým obsahem stříbra a opracovaném v proudu kyslíku. Přítomnost vody v proudu plynu vede k vymizení pásu na 37 700 cm-1. Intenzita tohoto pásu je plně obnovena za podmínek bez přítomnosti vody. Agmn+ specie v AgH-ZSM-5 zeolitu a jejich optické vlastnosti jsou stabilní za podmínek rozličného vysokoteplotního opracování zeolitu. Byla tak prokázána možnost přípravy chemicky/teplotně stálého materiálu pro senzorové aplikace na bázi křemíkem bohatých metalozeolitů. (cs)
Title	Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material Zeolit Ag-ZSM-5 jako vysokoteplotní senzorový material pro detekci vodní páry (cs) Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material (en)
skos:prefLabel	Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material Zeolit Ag-ZSM-5 jako vysokoteplotní senzorový material pro detekci vodní páry (cs) Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material (en)
skos:notation	RIV/61388955:_____/08:00315575!RIV09-AV0-61388955
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA203/05/2309), Z(AV0Z40400503)
http://linked.open...iv/cisloPeriodika	27
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	Sazama, Petr Dědeček, Jiří Jirglová, Hana
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyzikální chemie J. Heyrovského AV ČR, v.v.i.
http://linked.open...dnocenehoVysledku	355157
http://linked.open...ai/riv/idVysledku	RIV/61388955:_____/08:00315575
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	senzors; nanomaterials; water-vapor sensing; Ag clusters (en)
http://linked.open.../riv/klicoveSlovo	senzors nanomaterials Ag clusters water-vapor sensing
http://linked.open...odStatuVydavatele	NL - Nizozemsko
http://linked.open...ontrolniKodProRIV	[31E28A8F136D]
http://linked.open...i/riv/nazevZdroje	Materials Letters
http://linked.open...in/vavai/riv/obor	CF
http://linked.open...ichTvurcuVysledku	3 (xsd:int)
http://linked.open...cetTvurcuVysledku	3 (xsd:int)
http://linked.open...vavai/riv/projekt	Nanostructured inorganic materials based on molecular sieves for sensor application
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	62
http://linked.open...iv/tvurceVysledku	Dědeček, Jiří Sazama, Petr Jirglová, Hana
http://linked.open...ain/vavai/riv/wos	000259768600001
http://linked.open...n/vavai/riv/zamer	Struktura, reaktivita a dynamika molekulárních a biomolekulárních systémů: teorie, experiment, aplikace
issn	0167-577X
number of pages	3 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material Ag-ZSM-5 zeolite as high-temperature water-vapor sensor material

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