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The role of mineral surfaces in the preservation and transformation of organic carbon: meso- to nano– scale spatial complexity of organic matter forms in organic-rich shales
mineral surfaces preservation transformation organic carbon meso- to nano– scale spatial complexity organic matter forms organic-rich shales
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2012/3/30
Sequestration of organic matter (OM) in sediments is a fundamental biogeochemical process that regulates planetary temperature, the flux of free oxygen to the atmosphere and oceans, and the distributi...
Molecular Dynamics Simulations of the Adsorption of Methylene Blue at Clay Mineral Surfaces
Adsorption of Methylene Blue • Clay Cation-Exchange Capacity Determination • Clay Surface-Area Determination • Molecular Dynamics Simulations
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2011/12/6
Abstract: Molecular dynamics simulations were performed of the adsorption of methylene blue (MB) on model beidellite, montmorillonite, and muscovite mica surfaces, using a previously determined empiri...
Ab initio calculations on aluminosilicate Q3 species: Implications for atomic structures of mineral surfaces and dissolution mechanisms of feldspars
Ab calculations aluminosilicate Q3 species Implications for atomic structures dissolution mechanisms of feldspars
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2012/4/6
Molecularorbitalcalculations onvariousaluminosilicate Q3T-OHandbridging0spe-cieswereperformed to modelatomic structural changesonmineralsurfacesthat occuras
a function ofpH. Calculatedvibrational fre...
Molecular-Scale Imaging of Clay Mineral Surfaces with the Atomic Force Microscope
Atomic force microscopy Illite Montmorillonite Oxygen distances Surface
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2012/1/4
Specimen samples of Crook County montmorillonite and Silver Hill illite, purified and prepared in the Na-form, were imaged under 80% relative humidity using an atomic force microscope. The direct imag...
Sorption of Water at High Temperatures on Certain Clay Mineral Surfaces. Correlation with Lattice Fluoride
Sorption of Water Certain Clay Mineral Surfaces Lattice Fluoride
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2011/11/16
The sorption of water, at 490°C and ca. 23–24 torr, on clay mineral surfaces has been studied using thermogravimetry and infrared absorption spectroscopy. Results from a series of synthetic hectorites...