Surface Characterization of γ-Ga2O3:  A Microcalorimetric and IR Spectroscopic Study of CO Adsorption

Langmuir ◽  
2002 ◽  
Vol 18 (26) ◽  
pp. 10255-10260 ◽  
Author(s):  
M. Rodríguez Delgado ◽  
C. Morterra ◽  
G. Cerrato ◽  
G. Magnacca ◽  
C. Otero Areán
1994 ◽  
Vol 90 (21) ◽  
pp. 3367-3372 ◽  
Author(s):  
Silvia Bordiga ◽  
Edoardo Garrone ◽  
Carlo Lamberti ◽  
Adriano Zecchina ◽  
Carlos Otero Areán ◽  
...  

2013 ◽  
Vol 117 (34) ◽  
pp. 17666-17673 ◽  
Author(s):  
Eva-Maria Köck ◽  
Michaela Kogler ◽  
Thomas Bielz ◽  
Bernhard Klötzer ◽  
Simon Penner

Author(s):  
Olga V. Lushchikova ◽  
Máté Szalay ◽  
Hossein Tahmasbi ◽  
Ludo B. F. Juurlink ◽  
Jörg Meyer ◽  
...  

To understand elementary reaction steps in the hydrogenation of CO2 over copper-based catalysts, we experimentally study the adsorption of CO2 and H2 onto cationic Cun+ (n = 4–7) clusters.


1994 ◽  
Vol 187 (Part_2) ◽  
pp. 281-300 ◽  
Author(s):  
Konstantin Hadjiivanov ◽  
Odette Saur ◽  
Jean Lamotte ◽  
Jean-Claude Lavalley

ChemInform ◽  
2010 ◽  
Vol 27 (33) ◽  
pp. no-no
Author(s):  
K. A. FRIEDRICH ◽  
K.-P. GEYZERS ◽  
U. LINKE ◽  
U. STIMMING ◽  
J. STUMPER

1996 ◽  
Vol 402 (1-2) ◽  
pp. 123-128 ◽  
Author(s):  
K.A. Friedrich ◽  
K.-P. Geyzers ◽  
U. Linke ◽  
U. Stimming ◽  
J. Stumper

2005 ◽  
Vol 23 (4) ◽  
pp. 323-334 ◽  
Author(s):  
Adnan Özcan ◽  
Mutlu Şahin ◽  
Asiye Safa Özcan

The adsorption of nitrate ions onto clay minerals has not been given much attention, possibly because clay surfaces are negatively charged. In order to increase the positive charge on the surface, sepiolite was modified in the present studies by treatment with dodecylethyldimethylammonium (DEDMA) bromide. After such modification, it was found that the maximum amount of nitrate ion adsorbed occurred at a pH value of 2.0. The chemical composition of natural sepiolite was determined by EDX methods and surface characterization of both natural and modified sepiolite samples was undertaken using FT-IR spectroscopic techniques. The adsorption of nitrate ions onto these adsorbents was determined by ion chromatography. The kinetic parameters of the adsorption process were calculated and it was shown that the reaction kinetic data could be fitted using the pseudo-second-order rate model. The calculated results indicate that both natural and surfactant-modified sepiolite are effective sorbents for the removal of anionic contaminants; however, the surfactant-modified sepiolite (453 mmol/kg) was more effective than the unmodified sepiolite (408 mmol/kg) in this respect. The adsorption data obtained were well described by the Freundlich adsorption isotherm.


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