Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
DYNAMICAL STUDIES OF ZEOLITIC PROTONS AND ADSORBATES BY PICOSECOND INFRARED-SPECTROSCOPY
Autore:
BONN M; BAKKER HJ; DOMEN K; HIROSE C; KLEYN AW; VANSANTEN RA;
Indirizzi:
MAX PLANCK GESELL,FRITZ HABER INST,FARADAYWEG 4-6 D-14195 BERLIN GERMANY FOM,INST ATOM & MOL PHYS NL-1098 SJ AMSTERDAM NETHERLANDS EINDHOVEN UNIV TECHNOL,SCHUIT INST CATALYSIS NL-5600 MB EINDHOVEN NETHERLANDS TOKYO INST TECHNOL,RESOURCES UTILIZAT RES LAB,MIDORI KU YOKOHAMA KANAGAWA 226 JAPAN
Titolo Testata:
Catalysis reviews. Science and engineering
fascicolo: 1-2, volume: 40, anno: 1998,
pagine: 127 - 173
SICI:
0161-4940(1998)40:1-2<127:DSOZPA>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
BRONSTED ACID SITES; VIBRATIONAL-ENERGY TRANSFER; AB-INITIO CALCULATIONS; TIME-RESOLVED MEASUREMENTS; SURFACE HYDROXYL-GROUPS; TEMPERATURE-DEPENDENCE; METHANOL ADSORPTION; WATER-MOLECULES; POPULATION LIFETIMES; NEUTRON-SCATTERING;
Tipo documento:
Review
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
129
Recensione:
Indirizzi per estratti:
Citazione:
M. Bonn et al., "DYNAMICAL STUDIES OF ZEOLITIC PROTONS AND ADSORBATES BY PICOSECOND INFRARED-SPECTROSCOPY", Catalysis reviews. Science and engineering, 40(1-2), 1998, pp. 127-173

Abstract

The application of (picosecond) nonlinear infrared spectroscopy to investigate zeolite catalysts and adsorbates is reviewed. In these time-resolved experiments, one specific vibration in the zeolite system (i.e., a zeolite or adsorbate vibration) is selectively excited with an ultrashort (tunable) mid-infrared pulse. The effect of this excitation and the subsequent energy relaxation can be monitored real time, providing information on the structure of the bare zeolite and adsorption complexes. More importantly, with this technique the picosecond energy flow at the catalytic site and the dynamics of the catalyst-adsorbate interaction can be investigated: Short-lived transient species (e.g., reaction intermediates) are observed and the picosecond relaxation rates and pathways at the catalytic site render insights into the dynamics of the interaction between the zeolite catalyst and its adsorbates at a molecular level. This illustrates the potential of time-resolved infrared spectroscopy in the investigations of catalytic systems.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 26/09/20 alle ore 13:25:54