Research output: Contribution to journal › Article › peer-review
Spectroscopic and thermodynamic characterization of strontium carbonyls formed upon carbon monoxide adsorption on the zeolite Sr-Y. / Garrone, E.; Bonelli, B.; Tsyganenko, A. A.; Delgado, M. Rodríguez; Palomino, G. Turnes; Manoilova, O. V.; Areán, C. Otero.
In: Journal of Physical Chemistry B, Vol. 107, No. 11, 20.03.2003, p. 2537-2542.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Spectroscopic and thermodynamic characterization of strontium carbonyls formed upon carbon monoxide adsorption on the zeolite Sr-Y
AU - Garrone, E.
AU - Bonelli, B.
AU - Tsyganenko, A. A.
AU - Delgado, M. Rodríguez
AU - Palomino, G. Turnes
AU - Manoilova, O. V.
AU - Areán, C. Otero
PY - 2003/3/20
Y1 - 2003/3/20
N2 - The adsorption of CO on the faujasite-type zeolite Sr-Y generates four types of carbonyls: The Sr(CO)2+ species, which has a characteristic IR adsorption band at 2191 cm-1; the Sr(OC)2+ species at 2095 cm-1; Sr(CO)22+, which has a single mode at 2187 cm-1; and Sr(CO, OC)2+, which has a mode at 2098 cm-1. The use of a variable-temperature IR cell allowing the simultaneous measurements of temperature, pressure, and coverages (intensities) of CO species to be made has allowed the determination of the standard enthalpy and entropy of formation of each species, so obtaining a fairly thorough thermodynamic characterization of the CO/Sr-Y system. C- and O-bonded carbonyl species were found to be in a temperature-dependent isomerization equilibrium, which was also studied by means of variable-temperature IR spectroscopy.
AB - The adsorption of CO on the faujasite-type zeolite Sr-Y generates four types of carbonyls: The Sr(CO)2+ species, which has a characteristic IR adsorption band at 2191 cm-1; the Sr(OC)2+ species at 2095 cm-1; Sr(CO)22+, which has a single mode at 2187 cm-1; and Sr(CO, OC)2+, which has a mode at 2098 cm-1. The use of a variable-temperature IR cell allowing the simultaneous measurements of temperature, pressure, and coverages (intensities) of CO species to be made has allowed the determination of the standard enthalpy and entropy of formation of each species, so obtaining a fairly thorough thermodynamic characterization of the CO/Sr-Y system. C- and O-bonded carbonyl species were found to be in a temperature-dependent isomerization equilibrium, which was also studied by means of variable-temperature IR spectroscopy.
UR - http://www.scopus.com/inward/record.url?scp=0037650205&partnerID=8YFLogxK
U2 - 10.1021/jp0217841
DO - 10.1021/jp0217841
M3 - Article
AN - SCOPUS:0037650205
VL - 107
SP - 2537
EP - 2542
JO - Journal of Physical Chemistry B
JF - Journal of Physical Chemistry B
SN - 1520-6106
IS - 11
ER -
ID: 41680183