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Titolo:
VIBRATIONAL DYNAMICS OF ADSORBED D2O ON BRONSTED HYDROXYL GROUP IN A ZEOLITE
Autore:
DOMEN K; FUJINO T; WADA A; HIROSE C; KANO SS;
Indirizzi:
TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU,4259 NAGATSUTA YOKOHAMA KANAGAWA 226 JAPAN HOSEI UNIV,COLL ENGN TOKYO 184 JAPAN
Titolo Testata:
MICROPOROUS AND MESOPOROUS MATERIALS
fascicolo: 4-6, volume: 21, anno: 1998,
pagine: 673 - 678
SICI:
1387-1811(1998)21:4-6<673:VDOADO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
TEMPERATURE-PROGRAMMED DESORPTION; X-RAY PHOTOELECTRON; ENERGY TRANSFER; SURFACE HYDROXYL; WATER-MOLECULES; PROBE MOLECULES; HYDROGEN-BONDS; RELAXATION; ACIDITY; SPECTROSCOPY;
Keywords:
BRONSTED HYDROXYL GROUP; WATER; VIBRATIONAL DYNAMICS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
42
Recensione:
Indirizzi per estratti:
Citazione:
K. Domen et al., "VIBRATIONAL DYNAMICS OF ADSORBED D2O ON BRONSTED HYDROXYL GROUP IN A ZEOLITE", MICROPOROUS AND MESOPOROUS MATERIALS, 21(4-6), 1998, pp. 673-678

Abstract

The spectroscopic and dynamic features of vibrationally excited watermolecules (D2O) adsorbed on deuterated mordenite zeolite(DM-20) have been observed by infrared-infrared pump-probe experiments. The vibrational lifetimes of D2O molecules adsorbed on zeolite hydroxyl groups have been determined to be 43 +/- 5 ps for the OD group which is rather free from interaction, and approximate to 15 ps for the OD group understrong hydrogen bonding to the surface. By infrared pumping, a newly appearing absorption band (approximate to 15 ps) was observed at around 2730 cm(-1). In basic accordance with the report by Graener and Seifert on a solution of H2O and D2O in solvents, a possible assignment ofthe absorption band is discussed. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 25/09/20 alle ore 00:08:44