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Clays and Clay Minerals

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Clays and Clay Minerals 12 records found  Search took 0.05 seconds. 
1.
7 p, 664.1 KB Structure and properties of hydrogenated nitrile rubber/organo-montmorillonite nanocomposites / Gu, Zheng (Qingdao University. Institute of Polymer Materials) ; Song, Guojun (Qingdao University. Institute of Polymer Materials) ; Liu, Weisheng (Lanzhou University. Department of Chemistry and State Key Laboratory of Applied Organic Chemistry. College of Chemistry and Chemical Engineering.) ; Yang, Shujing (Qingdao University. Institute of Polymer Materials) ; Gao, Jianming (Qingdao TKS Sealing Industry Company)
The aim of the work was to study the effect of organo-montmorillonite (OMt) on the properties of hydrogenated nitrile rubber (HNBR)/OMt nanocomposites. The nanocomposites were prepared by a melt intercalation method. [...]
2010 - 10.1346/CCMN.2010.0580107
Clays and Clay Minerals, Vol. 58, Núm. 1 (2010) , p. 72-78  
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2.
8 p, 451.5 KB Enhancement of dissolution rates of amorphous silica by interaction with bovine serum albumin at different pH conditions / Kawano, Motoharu (Kagoshima University. Graduate School of Science and Engineering) ; Hwang, Jinyeon (Pusan National University. Division of Earth Environmental System)
Proteins and protein-like molecules are abundant in various geochemical environments; they form complexes with mineral surfaces and with dissolved organic matter. To evaluate the effect of proteins on rates of dissolution of minerals, experiments on the dissolution of amorphous silica in solutions containing various concentrations of bovine serum albumin (BSA) were performed in this study. [...]
2010 - 10.1346/CCMN.2010.0580211
Clays and Clay Minerals, Vol. 58, Núm. 2 (2010) , p. 272-279  
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3.
9 p, 1.7 MB On the kinetics of ion exchange in phlogopite - An in situ AFM study / Aldushin, Kirill (Ludwig-Maximilians-Universität. Department für Geo- und Umweltwissenschaften. Sektion Kristallographie) ; Jordan, Guntram (Ludwig-Maximilians-Universität. Department für Geo- und Umweltwissenschaften. Sektion Kristallographie) ; Aldushina, Elena (Ruhr-Universität Bochum. Institut für Geologie Mineralogie und Geophysik) ; Schmahl, Wolfgang W. (Ludwig-Maximilians-Universität. Department für Geo- und Umweltwissenschaften. Sektion Kristallographie)
The kinetics of cation exchange in phlogopite have been studied in situ by hydrothermal atomic force microscopy (HAFM). The exchange of interlayer K by octylammonium ions caused an increase in the interlayer distance and the formation of reaction fronts which can be locally resolved by AFM. [...]
2007 - 10.1346/CCMN.2007.0550401
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 339-347  
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4.
6 p, 413.0 KB Adsorption of Eu3+ to smectites and fluoro-tetrasilicic mica / Okada, Tomohiko (Shinshu University. Department of Chemistry and Material Engineering) ; Ehara, Yusuke (Waseda University. Graduate School of Science and Engineering) ; Ogawa, Makoto (Waseda University. Graduate School of Science and Engineering)
The adsorption of Eu from aqueous solution to natural Na-montmorillonite (Kunipia F), synthetic saponite (Sumecton SA) and synthetic fluoro-tetrasilicic mica (Na-TSM) clay samples was investigated. Adsorption capacities derived from the isotherms were 1. [...]
2007 - 10.1346/CCMN.2007.0550402
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 348-353  
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5.
7 p, 466.7 KB Eu incorporation behavior of a Mg-Al-Cl layered double hydroxide / Curtius, Hilde (Institute of Energy Research. Safety Research and Reactor Technology) ; Ufer, Kristian (Institute of Energy Research. Safety Research and Reactor Technology)
From leaching experiments with metallic uranium-aluminum research reactor fuel elements in repository-relevant MgCl-rich salt brines, a Mg-Al layered double hydroxide (LDH) with chloride as the interlayer anion was identified as a crystalline secondary phase component. [...]
2007 - 10.1346/CCMN.2007.0550403
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 354-360  
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6.
8 p, 749.3 KB The effect of amino acids on the dissolution rates of amorphous silica in near-neutral solution / Kawano, Motharu (Kagoshima University. Department of Earth and Environmental Sciences) ; Obokata, Sumine (Kagoshima University. The Graduate School of Science and Engineering)
Amino acids are ubiquitous in the Earth's surface environments as reactive biological molecules produced by every living thing including bacteria. To evaluate the effects of amino acids on mineral dissolution and to reveal the mechanism by which they interact with the mineral surface, we performed dissolution experiments of X-ray amorphous silica in solution containing 0. [...]
2007 - 10.1346/CCMN.2007.0550404
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 361-368  
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7.
11 p, 371.7 KB Combined effects of tannate and ageing on structural and surface properties of aluminum precipitates / Yu, G. (Chinese Academy of Sciences. Institute of Soil Science) ; Saha, U. K. (University of Saskatchewan. Department of Soil Science) ; Kozak, L. M. (University of Saskatchewan. Department of Soil Science) ; Huang, P. M. (University of Saskatchewan. Department of Soil Science)
The influence of organics on the crystallization of Al precipitates has been well documented. However, the effects of organics and ageing on the transformation and structural configuration of Al precipitates in relation to their surface and charge properties are not fully understood. [...]
2007 - 10.1346/CCMN.2007.0550405
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 369-379  
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8.
9 p, 1001.3 KB Soil hydroxy-interlayered minerals : A re-interpretation of their crystallochemical properties / Meunier, Alain (Université de Poitiers)
Hydroxy-interlayered minerals (HIMs) are typical of moderately acidic soils. Barnhisel and Bertsch (1989) defined the hydroxy-interlayered clay minerals as a solid-solution series between smectite, vermiculite and pedogenic or aluminous chlorite end-members. [...]
2007 - 10.1346/CCMN.2007.0550406
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 380-388  
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9.
13 p, 1.4 MB Weathering sequences of clay minerals in soils along a serpentinitic toposequence / Hseu, Z. Y. (National Pingtung University of Science and Technology. Department of Environmental Science and Engineering) ; Tsai, H. (National Changhua University of Education. Department of Geography) ; Hsi, H. C. (National Kaohsiung University of Science and Technology. Department of Safety Health and Environmental Engineering) ; Chen, Y. C. (National Pingtung University of Science and Technology. Department of Environmental Science and Engineering)
There has been limited research on clay mineral transformation in serpentinitic soils under humid tropical conditions. In this study, four soil pedons were selected along a toposequence from the summit (Entisol), shoulder (Vertisol), backslope (Alfisol) to footslope (Ultisol) positions to explore the contributions and the significance of landscape and weathering status of serpentinitic rock with regard to clay mineral transformations in eastern Taiwan. [...]
2007 - 10.1346/CCMN.2007.0550407
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 389-401  
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10.
21 p, 3.8 MB Mineralogy, geochemistry and genesis of smectite in Pliocene volcaniclastic rocks of the Doǧanbey formation, Beyşehi̇r basin, Konya, Turkey / Kadir, Selahattín (Eskişehir Osmangazi University. Department of Geological Engineering)
Pliocene volcaniclastic lacustrine rocks of the Doǧanbey formation in the Beyşehir region (central Anatolia) are composed of organic-matter-bearing claystone, clastic units and dolomite interbeds, suggesting an anaerobic, shallow swampy, lacustrine depositional environment. [...]
2007 - 10.1346/CCMN.2007.0550408
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 402-422  
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11.
20 p, 4.8 MB Metamorphic-hosted pyrophyllite and dickite occurrences from the hydrous Al-silicate deposits of the Malatya-Pütürge region, central eastern Anatolia, Turkey / Bozkaya, Ömer (Cumhuriyet University. Department of Geological Engineering) ; Yalçin, Hüseyin (Cumhuriyet University. Department of Geological Engineering) ; Başibüyük, Zeynel (Cumhuriyet University. Department of Geological Engineering) ; Bozkaya, Gülcan (Cumhuriyet University. Department of Geological Engineering)
Hydrous Al-silicate deposits are found to the south of Pütürge in Malatya city, Turkey. The surrounding rocks consist of mylonitic granitic gneiss overlain by muscovite gneiss with kyanite-bearing metabasic schist lenses on top which are cut by silica veins containing prismatic tourmaline and specularite. [...]
2007 - 10.1346/CCMN.2007.0550409
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 423-442  
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12.
7 p, 468.5 KB Nanometer-scale chemical modification of nano-ball allophane / Abidin, Zaenal (Bogor Agricultural University. Inorganic Chemistry Laboratory) ; Matsue, Naoto (Ehime University. Applied Chemistry for Environmental Industry Laboratory) ; Henmi, Teruo (Ehime University. Applied Chemistry for Environmental Industry Laboratory)
Nano-ball allophane is a hydrous Al silicate with a hollow-sphere morphology that contains some defects or pores along the spherule walls. Enlargement of the pore openings by dilute alkali treatment was confirmed by cation exchange capacity determinations using various alkylammonium cations as replacement cations. [...]
2007 - 10.1346/CCMN.2007.0550410
Clays and Clay Minerals, Vol. 55, Núm. 4 (2007) , p. 443-449  
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