laser-induced luminescence in reduced copper-exchanged Y zeolite

Autor:	A. Gédéon, J. Fraissard, J. Deson, C. Lalo, F. Vasseur
Rok vydání:	1996
Předmět:	Hydrogen Sodium Inorganic chemistry General Physics and Astronomy chemistry.chemical_element Laser medicine.disease Photochemistry Copper law.invention Photoexcitation chemistry law medicine Dehydration Physical and Theoretical Chemistry Zeolite Luminescence
Zdroj:	Chemical Physics Letters. 258:381-386
ISSN:	0009-2614
DOI:	10.1016/0009-2614(96)00667-7
Popis:	Copper-exchanged sodium Y zeolite exhibit broad-band emission under 240 nm laser photoexcitation. A kinetic study of the decay of the luminescence spectrum reveals three components with contributions which depend on the thermal pretreatment of the sample, dehydration or reduction in hydrogen. Identification of two of the emitting centres as Cu + sites indicates that autoreduction accompanies dehydration. Prolonged reduction in hydrogen diminishes the concentration of these species.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::1dfd9a160db1ead43b1d07b3a8bc5b58 https://doi.org/10.1016/0009-2614(96)00667-7 Zobrazit plný text záznamu Full Text from ScienceDirect