Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
Thermodynamic studies on hydrogen adsorption on the zeolites Na-ZSM-5 and K-ZSM-5. / Areán, C. Otero; Delgado, M. Rodríguez; Palomino, G. Turnes; Rubio, M. Tomás; Tsyganenko, N. M.; Tsyganenko, A. A.; Garrone, E.
в: Microporous and Mesoporous Materials, Том 80, № 1-3, 2005, стр. 247-252.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - Thermodynamic studies on hydrogen adsorption on the zeolites Na-ZSM-5 and K-ZSM-5
AU - Areán, C. Otero
AU - Delgado, M. Rodríguez
AU - Palomino, G. Turnes
AU - Rubio, M. Tomás
AU - Tsyganenko, N. M.
AU - Tsyganenko, A. A.
AU - Garrone, E.
PY - 2005
Y1 - 2005
N2 - Adsorption of dihydrogen onto the zeolites Na-ZSM-5 and K-ZSM-5 renders the fundamental H-H stretching mode infrared active. The corresponding infrared absorption bands were found at 4101 and 4112 cm-1 for H 2/Na-ZSM-5 and H2/K-ZSM-5, respectively. Thermodynamic characterization of the adsorbed state was carried out by means of variable-temperature infrared spectroscopy; simultaneously measuring integrated band intensity, temperature and equilibrium pressure of the gas phase. For the H2/Na-ZSM-5 system, the standard adsorption enthalpy and entropy resulted to be ΔH° = -10.3 (±0.5) kJ mol-1 and ΔS° = -121 (±10) J mol-1 K-1. For H 2/K-ZSM-5 corresponding values were -9.1 (±0.5) kJ mol -1 and -124 (±10) J mol-1 K-1, respectively.
AB - Adsorption of dihydrogen onto the zeolites Na-ZSM-5 and K-ZSM-5 renders the fundamental H-H stretching mode infrared active. The corresponding infrared absorption bands were found at 4101 and 4112 cm-1 for H 2/Na-ZSM-5 and H2/K-ZSM-5, respectively. Thermodynamic characterization of the adsorbed state was carried out by means of variable-temperature infrared spectroscopy; simultaneously measuring integrated band intensity, temperature and equilibrium pressure of the gas phase. For the H2/Na-ZSM-5 system, the standard adsorption enthalpy and entropy resulted to be ΔH° = -10.3 (±0.5) kJ mol-1 and ΔS° = -121 (±10) J mol-1 K-1. For H 2/K-ZSM-5 corresponding values were -9.1 (±0.5) kJ mol -1 and -124 (±10) J mol-1 K-1, respectively.
KW - Adsorption thermodynamics
KW - FTIR
KW - Hydrogen
KW - Zeolites
KW - ZSM-5
UR - http://www.scopus.com/inward/record.url?scp=16644380261&partnerID=8YFLogxK
U2 - 10.1016/j.micromeso.2004.12.004
DO - 10.1016/j.micromeso.2004.12.004
M3 - Article
AN - SCOPUS:16644380261
VL - 80
SP - 247
EP - 252
JO - Zeolites
JF - Zeolites
SN - 1387-1811
IS - 1-3
ER -
ID: 13733546