Results 31 to 40 of about 206,929 (309)
Weathering microenvironments on feldspar surfaces: implications for understanding fluid-mineral reactions in soils [PDF]
, 2008 The mechanisms by which coatings develop on weathered grain surfaces, and their potential impact on rates of fluid-mineral interaction, have been investigated by examining feldspars from a 1.1 ky old soil in the Glen Feshie chronosequence, Scottish ...
Blum +8 more
core +2 more sources
Discover GeoscienceThis study investigated the mineralogical assemblage of weathering products developed on mylonite rocks in west Cameroon. Smectite and vermiculite occurrence was studied, particularly to emphasize its origin and the potential of the samples in terracotta
A. N. Nzeukou +5 more
doaj +1 more source
Boric Acid Supported on Montmorillonites as Catalysts for Synthesis of 2,3-dihydroquinazolin-4(1H)-ones [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2019 Synthesis of 2,3-dihydroquinazolin-4(1H)-ones using H3BO3/montmorillonite K10 (H3BO3/mont K10) catalyst has been reported. H3BO3/mont K10 and H3BO3/mont K30 have been prepared and used as catalysts in the reaction between anthranilamide and benzaldehyde ...
Mahesh Kancherla +3 more
doaj
Advanced Engineering Materials, EarlyView.Freeze‐drying of layered silicate is the key to get coatings with superior gas barrier. Freeze‐drying of layered silicates modified with dodecylamine (DDA) is a highly effective technique for the preparation of barrier pigments that significantly mitigate the permeation of oxygen, water vapor, and hydrogen through polymer films containing these ...
Joshua Lommes +4 more
wiley +1 more source
MINERAL ABSORBENT EFFIECIENCY ON THE PETROLEUM SPILLS REMOVAL
Studia Universitatis Babes-Bolyai ChemiaMineral absorbents are of great interest for the oil spills removal. Therefore, current investigation tests the removal ability of three commercial products: Zeolit Spectrum, Favisan Clay and professional oil spills removal Adabline II OS.
Daniel ARGHIROPOL +5 more
doaj +1 more source
Temperature-dependent elastic shear modulus of a saturated lateritic clay [PDF]
E3S Web of ConferencesThe thermo-mechanical behaviour of saturated clays and sands has been studied by many researchers, considering that it is useful in many geotechnical problems, such as the analysis of energy foundations and the effects of climate change on earth ...
Bentil Obed Takyi +3 more
doaj +1 more source
Advanced Functional Materials, EarlyView.The layer‐by‐layer (LbL) assembly of coordination solids, enabled by the surface‐mounted metal‐organic framework (SURMOF) platform, is on the cusp of generating the organic counterpart of the epitaxy of inorganics. The programmable and sequential SURMOF protocol, optimized by machine learning (ML), is suited for accessing high‐quality thin films of ...
Zhengtao Xu +2 more
wiley +1 more source
Bridging molecular and continuous descriptions: the case of dynamics in clays
Anais da Academia Brasileira de Ciências, 2010 The theory of transport in porous media such as clays depends on the level of description. On the macroscopic scale,hydrodynamics equations are used.
Jean-François Dufrêche +3 more
doaj +1 more source
Study on the thermal stability of Polystyryl surfactants and its modified clay nanocomposites [PDF]
, 2004 Five oligomeric styrene surfactants, N,N,N-trimethylpolystyrylammonium, N,N-dimethyl-N-benzylpolystyrylammonium, N,N-dimethyl-N-hexadecylpolystyrylammonium, 1,2-dimethyl-3-polystyrylimidazolium, and triphenylpolystyrylphosphonium chlorides were ...
Jiang, David D. +2 more
core +1 more source
Advanced Functional Materials, EarlyView.The dielectric properties of clays are studied on the level of individual monolayers and functional double stacks. The material breakdown characteristics and charge storage performance are analyzed. For illustration, a defined charge pattern representing a cuneiform character is produced, written into a microscopic clay tile, referencing the origins of
Sebastian Gödrich +6 more
wiley +1 more source