Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Variable-temperature infrared spectroscopy : An access to adsorption thermodynamics of weakly interacting systems. / Otero Areán, C.; Manoilova, O. V.; Turnes Palomino, G.; Rodríguez Delgado, M.; Tsyganenko, A. A.; Bonelli, B.; Garrone, E.
в: Physical Chemistry Chemical Physics, Том 4, № 23, 01.01.2002, стр. 5713-5715.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Variable-temperature infrared spectroscopy
T2 - An access to adsorption thermodynamics of weakly interacting systems
AU - Otero Areán, C.
AU - Manoilova, O. V.
AU - Turnes Palomino, G.
AU - Rodríguez Delgado, M.
AU - Tsyganenko, A. A.
AU - Bonelli, B.
AU - Garrone, E.
PY - 2002/1/1
Y1 - 2002/1/1
N2 - Variable-temperature FTIR spectroscopy, with the simultaneous measurement of temperature and equilibrium pressure, is shown to be a convenient method for the thermodynamic study of adsorbent-adsorbate systems. When weak interactions are concerned, the technique presents favourable features, as compared to classical microcalorimetric measurements. This recently developed spectroscopic method is demonstrated by studying the adsorption of dinitrogen on the protonic zeolite H-ZSM-5, a system for which the availability of microcalorimetric measurements affords a direct check of the new method. The relevant thermodynamic quantities determined for this system are ΔH° = -19.7(±0.5) kJ mol-1 and ΔS° = -125(±5) J mol-1 K-1; the standard adsorption enthalpy compares favourably with the microcalorimetrically determined value of about 19 kJ mol-1.
AB - Variable-temperature FTIR spectroscopy, with the simultaneous measurement of temperature and equilibrium pressure, is shown to be a convenient method for the thermodynamic study of adsorbent-adsorbate systems. When weak interactions are concerned, the technique presents favourable features, as compared to classical microcalorimetric measurements. This recently developed spectroscopic method is demonstrated by studying the adsorption of dinitrogen on the protonic zeolite H-ZSM-5, a system for which the availability of microcalorimetric measurements affords a direct check of the new method. The relevant thermodynamic quantities determined for this system are ΔH° = -19.7(±0.5) kJ mol-1 and ΔS° = -125(±5) J mol-1 K-1; the standard adsorption enthalpy compares favourably with the microcalorimetrically determined value of about 19 kJ mol-1.
UR - http://www.scopus.com/inward/record.url?scp=0036433715&partnerID=8YFLogxK
U2 - 10.1039/b209299a
DO - 10.1039/b209299a
M3 - Article
AN - SCOPUS:0036433715
VL - 4
SP - 5713
EP - 5715
JO - Physical Chemistry Chemical Physics
JF - Physical Chemistry Chemical Physics
SN - 1463-9076
IS - 23
ER -
ID: 41680948