Zobrazeno 1 - 10
of 236
pro vyhledávání: '"C. Otero Areán"'
Autor:
B., Bonelli, B., Fubini, B., Onida, G., Turnes Palomino, M., Rodríguez Delgado, C., Otero Areán, E., Garrone
Publikováno v:
In Studies in Surface Science and Catalysis 2004 154 Part B:1686-1692
Publikováno v:
Applied Surface Science. 256:5281-5284
Hydrogen adsorption (physisorption) on the faujasite-type zeolite Mg–X was studied by means of variable-temperature (80–140 K) FT-IR spectroscopy. Perturbation of the adsorbed H2 molecules by the cationic adsorbing centres of the zeolite renders
Autor:
C. Otero Areán, M. Rodriguez Delgado
Publikováno v:
Applied Surface Science. 256:5259-5262
Adsorption of carbon dioxide on a faujasite-type H-Y zeolite (Si:Al = 2.6:1) was studied by variable-temperature (200–290 K range) infrared spectroscopy. Adsorbed CO 2 molecules interact with the Bronsted acid Si(OH)Al groups located inside the zeo
Publikováno v:
Catalysis Today. 138:249-252
Variable-temperature infrared spectroscopy was used for a thermodynamic study on hydrogen adsorption on the zeolite Ca-Y. Adsorption renders the H–H stretching mode infrared active, at 4078 cm −1 ; and simultaneous measurement of IR absorbance an
Publikováno v:
Microporous and Mesoporous Materials. 112:411-418
Casting of inorganic templates is a viable method for obtaining porous carbons with tailored properties and with potential applications in gas adsorption and storage. One of the most used inorganic templates is mesoporous SBA-15 silica, which present
Autor:
C. Otero Areán
Publikováno v:
Journal of Molecular Structure. 880:31-37
Adsorption (at a low temperature) of nitrogen on the protonic zeolite H-Y results in hydrogen bonding of the adsorbed N2 molecules with the zeolite Si(OH)Al Bronsted-acid groups. This hydrogen-bonding interaction leads to activation, in the infrared,
Autor:
K. Frolich, C. Otero Areán, Angeles Pulido, G. Fiol Bibiloni, M. Rodriguez Delgado, Petr Nachtigall, Roman Bulánek
Publikováno v:
The Journal of Physical Chemistry C. 112:4658-4666
A combination of variable-temperature Fourier transform infrared (FTIR) spectroscopy with calculations performed at the periodic density functional theory (DFT) level was used in the investigation of carbon monoxide adsorption on zeolites Na-ZSM-5 an
Autor:
C. López Bauçà, C. Otero Areán, Roman Bulánek, Petr Nachtigall, Karel Frolich, M. Rodriguez Delgado, G. Turnes Palomino
Publikováno v:
Microporous and Mesoporous Materials. 106:162-173
Carbon monoxide adsorption on Na-FER was studied by a combination of variable-temperature IR spectroscopy and computational methods involving, mainly, periodic density functional theory and ωCO/rCO correlation. Both, C–O stretching frequency and i
Publikováno v:
Microporous and Mesoporous Materials. 103:150-157
Several ordered mesoporous and microporous carbons have been obtained via casting procedures, using either mesoporous silicas (SBA-15 or MCM-48) or a commercial zeolite (Na–Y) as inorganic templates. In all cases, carbon replica retained the inorga
Publikováno v:
Applied Surface Science. 253:5701-5704
Variable-temperature infrared spectroscopy was used for the thermodynamic studies on the adsorption of hydrogen on the zeolite (Mg,Na)-Y. Adsorption renders the H H stretching mode infrared active, and simultaneous measurement of IR absorbance and hy