Browsing by Subject "Mossbauer Spectroscopy"

Browsing by Subject "Mossbauer Spectroscopy"

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  • Clays and Clay Minerals, Vol. 56, No. 3, 322–337, 2008. 
    Decarreau, Alain; Petit, Sabine; Martin, Francois; Farges, Francois; Vieillard, Philippe; Joussein, Emmanuel (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    High-charge nontronites were synthesized at 75, 90, 100, 110, 125, and 150ºC from a silicoferrous starting gel with Si2FeNa2O6.nH2O composition. This gel was oxidized in contact with air and then hydrothermally treated, ...
  • Clays and Clay Minerals, Vol. 56, No. 3, 380–388, 2008. 
    Maqueda, Celia; Romero, Agua Santas; Morillo, Esmeralda; Perez-rodriguez, Jose L.; Lerf, Anton; Wagner, Friedrich Ernst (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    The preparation of porous materials from clay minerals by selective leaching is of interest because it yields residues with large specific surface areas that can be used as adsorbents of contaminants or as catalysts. ...
  • Clays and Clay Minerals, Vol. 56, No. 6, 633–644, 2008. 
    Ayala-luis, Karina Barbara; Koch, Christian Bender; Hansen, Hans Christian Bruun (The Clay Minerals SocietyThe Clay Minerals Society, 2008)
    Mixed FeIIFeIII hydroxides, commonly referred to as ‘green rusts’ (GRs), are important reactive phases in both man-made and natural geochemical systems. Determinations of the standard Gibbs energy of formation of GRs are ...
  • Clays and Clay Minerals, Vol. 57, No. 3, 371–382, 2009. 
    Inoue, Atsuyuki; Meunier, Alain; Patrier-mas, Patricia; Rigault, Cecile; Beaufort, Daniel; Vieillard, Philippe (The Clay Minerals Society, 2009)
    Low-temperature chlorites formed in diagenetic to low-grade metamorphic environments generally have greater Si contents and larger numbers of octahedral vacancies, and smaller Fe+Mg contents than higher-grademe tamorphic ...
  • Clays and Clay Minerals, Vol. 57, No. 4, 433–443, 2009. 
    Bachir, Cherifa; Lan, Yanhua; Mereacre, Valeriu; Powell, Annie K.; Koch, Christian Bender; Weidler, Peter G (The Clay Minerals Society, 2009)
    Pillared clays (PILCs) with magnetic properties are materials with potential for wide application in industry and the environment, but only a few studies of these types of materials have been carried out. The purpose of ...
  • Clays and Clay Minerals, Vol. 58, No. 2, 164–173, 2010. 
    Aouad, Amina; Anastacio, Alexandre S.; Bergaya, Faiza; Stucki, Joseph W. (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    The placement of metal oxide pillars between clay mineral layers modifies their physicalchemical properties, including surface area, acidity, and catalytic activity. Aluminum is the most commonly used pillar cation, but ...
  • Clays and Clay Minerals, Vol. 58, No. 5, 589–595, 2010. 
    Gutierrez, Marlen; Escudey, Mauricio; Escrig, Juan; Denardin, Juliano C.; Altbir, Dora; Fabris, Jose D.; Cavalcante, Luis C. D.; Garcia-gonzalez, Maria Teresa (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    A magnetic composite was prepared by wet-impregnating a powder of a natural zeolite with a magnetic Fe oxide-containing synthetic material. Both starting materials were first characterized with X-ray diffraction, scanning ...
  • Clays and Clay Minerals, Vol. 58, No. 5, 707–716, 2010. 
    Kaufhold, Stephan; Ufer, Kristian; Kaufhold, Annette; Stucki, Joseph W.; Anastacio, Alexandre S.; Jahn, Reinhold; Dohrmann, Reiner (The Clay Minerals SocietyThe Clay Minerals Society, 2010)
    Allophane is a very fine-grained clay mineral which is especially common in Andosols. Its importance in soils derives from its large reactive surface area. Owing to its short-range order, allophane cannot be quantified by ...