Depósito Digital de Documentos de la UAB Encontrados 5 registros  La búsqueda tardó 0.01 segundos. 
1.
13 p, 751.0 KB Approach to a descriptive model of charge reduction in vermiculite by hydrothermal treatment / Campos, Ana M. (Universidad Jorge Tadeo Lozano. Departamento de Ciencias Básicas) ; Moreno, Sonia (Universidad Nacional de Colombia. Departamento de Química) ; Molina, Rafael (Universidad Nacional de Colombia. Departamento de Química)
Vermiculites have the potential to serve as effective catalysts if pillared with Al, but their high charge presents an obstacle to the pillaring process. The purpose of this studywas to submit natural vermiculite to thermal treatments in the presence of water vapor in order to effect a reduction in the global negative charge and therebyto enhance its susceptibilityto pillaring. [...]
2010 - 10.1346/CCMN.2010.0580110
Clays and Clay Minerals, Vol. 58, Núm. 1 (2010) , p. 97-109  
2.
7 p, 594.6 KB Water-uptake capacity of bentonites / Kaufhold, Stephan (BGR, Bundesanstalt für Geowissenschaften und Rohstoffe) ; Dohrmann, Reiner (LBEG, Landesamt für Bergbau, Energie und Geologie) ; Klinkenberg, M. (Institut für Energieforschung Sicherheitsforschung und Reaktortechnik (IEF-6). Forschungszentrum Jülich GmbH)
The present study compares the water-vapor adsorption capacity of bentonites (natural cation population) with the Enslin-Neff method. Water-vapor adsorption at 50% r. h. (relative humidity) or 70% r. [...]
2010 - 10.1346/CCMN.2010.0580103
Clays and Clay Minerals, Vol. 58, Núm. 1 (2010) , p. 37-43  
3.
6 p, 488.5 KB Mechanism of adsorption of water vapor by muscovite : A model based on adsorption calorimetry / Rakhmatkariev, Gairat (Academy of Sciences of Uzbekistan. Institute of General and Inorganic Chemistry)
Adsorption isotherms and differential heats of adsorption of water vapor by muscovite were measured at 303 K. The heats of adsorption are stepwise and each step corresponds to the stoichiometric formation of adsorption complexes of HO molecules with K ions, (HO)/K, (n = 1-6), which are located on the basal and lateral (edge) faces. [...]
2006 - 10.1346/CCMN.2006.0540311
Clays and Clay Minerals, Vol. 54, Núm. 3 (2006) , p. 402-407  
4.
8 p, 4.4 MB Surface-Specific Spectroscopy of Water at a Potentiostatically Controlled Supported Graphene Monolayer / Dreier, L. B. (Graduate School Materials Science in Mainz) ; Liu, Z. (Max Planck Institute for Polymer Research) ; Narita, Akimitsu (Max Planck Institute for Polymer Research) ; Van Zadel, M. J. (Max Planck Institute for Polymer Research) ; Müllen, Klaus (Johannes Gutenberg-Universität Mainz) ; Tielrooij, Klaas-Jan (Institut Català de Nanociència i Nanotecnologia) ; Backus, Ellen H. G. (University of Vienna. Department of Physical Chemistry) ; Bonn, Mischa (Max Planck Institute for Polymer Research)
Knowledge of the structure of interfacial water molecules at electrified solid materials is the first step toward a better understanding of important processes at such surfaces, in, e. g. , electrochemistry, atmospheric chemistry, and membrane biophysics. [...]
2019 - 10.1021/acs.jpcc.9b05844
Journal of physical chemistry. C, Vol. 123, Issue 39 (October 2019) , p. 24031-24038  
5.
4 p, 630.0 KB Modification of HF-treated silicon (100) surfaces by scanning tunneling microscopy in air under imaging conditions / Barniol i Beumala, Núria (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Pérez Murano, Francesc (Universitat Autònoma de Barcelona. Departament d'Enginyeria Electrònica) ; Aymerich Humet, Xavier (Universitat Autònoma de Barcelona. Departament de Física) ; American Physical Society
The modification of HF-etched silicon (100) surface with a scanning tunneling microscope(STM) operated in air is studied for the first time in samples subjected to the standard HF etching without the follow-up rinsing in H2O. [...]
1992 - 10.1063/1.107885
Applied physics letters, Vol. 61, Issue 4 (July 1992) , p. 462-464  

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