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Resultados globales: 7 registros encontrados en 0.03 segundos.
Artículos, Encontrados 7 registros
Artículos Encontrados 7 registros  
1.
10 p, 1.3 MB Quantification of allophane from Ecuador / Kaufhold, Stephan (BGR Bundesanstalt für Geowissenschaften und Rohstoffe) ; Ufer, Kristian (Institute of Mineralogy. TU Bergakademie Freiberg) ; Kaufhold, Annette (Martin-Luther-University Halle-Wittenberg. Institute for Soil Sciences and Plant Nutrition) ; Stucki, Joseph W. (University of Illinois. Department of Natural Resources and Environmental Sciences) ; Anastácio, Alexandre S. (University of Illinois. Department of Natural Resources and Environmental Sciences) ; Jahn, Reinhold (Martin-Luther-University Halle-Wittenberg. Institute for Soil Sciences and Plant Nutrition) ; Dohrmann, Reiner (LBEG Landesamt für Bergbau, Energie und Geologie)
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 powder X-ray diffraction (XRD) directly. [...]
2010 - 10.1346/CCMN.2010.0580509
Clays and Clay Minerals, Vol. 58, Núm. 5 (2010) , p. 707-716  
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2.
9 p, 810.9 KB Nitrate reduction by redox-activated, polydiallyldimethylammonium-exchanged ferruginous smectite / Su, Kai (Southwest Jiaotong University) ; Radian, Adi (Hebrew University of Jerusalem) ; Mishael, Yael (Hebrew University of Jerusalem) ; Yang, Lizhong (Southwest Jiaotong University) ; Stucki, Joseph W. (University of Illinois)
Nitrate is linked to chronic human illness and to a variety of environmental problems, and continues to be a contaminant of concern in soils and natural waters. Improved methods for nitrate abatement, thus, are still needed. [...]
2012 - 10.1346/CCMN.2012.0600503
Clays and Clay Minerals, Vol. 60, Núm. 5 (2012) , p. 464-472  
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3.
14 p, 485.8 KB Comparisons of structural Fe reduction in smectites by bacteria and dithionite : An infrared spectroscopic study / Lee, Kangwon (University of Illinois at Urbana-Champaign. Department of Natural Resources and Environmental Sciences) ; Kostka, Joel E. (Florida State University. Department of Oceanography) ; Stucki, Joseph W. (University of Illinois at Urbana-Champaign. Department of Natural Resources and Environmental Sciences)
The reduction of structural Fe in smectite is mediated either abiotically, by reaction with dithionite, or biotically, by Fe-reducing bacteria. The effects of abiotic reduction on clay-surface chemistry are much better known than the effects of biotic reduction. [...]
2006 - 10.1346/CCMN.2006.0540205
Clays and Clay Minerals, Vol. 54, Núm. 2 (2006) , p. 195-208  
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4.
3 p, 100.2 KB Advances in clay science in China / Dong, Hailiang ; Stucki, Joseph W.
2011 - 10.1346/CCMN.2011.0590500
Clays and Clay Minerals, Vol. 59, Núm. 5 (2011) , p. 435-437  
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5.
10 p, 947.8 KB A mössbauer spectroscopic study of aluminum- and iron-pillared clay minerals / Aouad, Amina (CNRS-Université d'Orléans CRMD) ; Anastácio, Alexandre S. (University of Illinois. Department of Natural Resources and Environmental Sciences) ; Bergaya, Faïza (CNRS-Université d'Orléans CRMD) ; Stucki, Joseph W. (University of Illinois. Department of Natural Resources and Environmental Sciences)
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 theus eof Fe offers a distinct opportunity to expand therangeof catalytic behavior. [...]
2010 - 10.1346/CCMN.2010.0580203
Clays and Clay Minerals, Vol. 58, Núm. 2 (2010) , p. 164-173  
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6.
7 p, 385.5 KB Redox properties of structural Fe in ferruginous smectite. A discussion of the standard potential and its environmental implications / Favre, Fabienne (Swiss Federal Institute of Technology. Laboratory of Soil Science. LPE-ISTE-ENAC) ; Stucki, Joseph W. (University of Illinois. Department of Natural Resources and Environmental Sciences) ; Boivin, Pascal (Université J. Fourier. IRD. Laboratoire d'Étude des Transferts en Hydrologie et Environnement LTHE)
The aim of this study was to compare the redox properties of oxides and smectite structural Fe (Fes). Structural Fe in smectite often accounts for about half of the Fe pool in soils and sediments, and is naturally reduced by indigenous bacteria. [...]
2006 - 10.1346/CCMN.2006.0540407
Clays and Clay Minerals, Vol. 54, Núm. 4 (2006) , p. 466-472  
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7.
12 p, 770.6 KB Layer charge density of smectites - Closing the gap between the structural formula method and the alkyl ammonium method / Kaufhold, Stephan (BGR Bundesanstalt für Geowissenschaften und Rohstoffe) ; Dohrmann, Reiner (LBEG Landesamt für Bergbau. Energie und Geo logie) ; Stucki, Joseph W. (University of Illinois. Department of Natural Resources and Environmental Sciences) ; Anastácio, Alexandre S. (University of Illinois. Department of Natural Resources and Environmental Sciences)
The layer charge density (LCD) of montmorillonite represents the permanent negative charge, its most important property. The LCD can be determined by two different methods, the structural formula method(SF M) and the alkylammonium method(AAM). [...]
2011 - 10.1346/CCMN.2011.0590208
Clays and Clay Minerals, Vol. 59, Núm. 2 (2011) , p. 200-211  
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