Zobrazeno 1 - 10
of 268
pro vyhledávání: '"Clay mineral X-ray diffraction"'
Autor:
Rafael Ferreiro Mählmann, Minh N. Nguyen, Thao Hoang-Minh, Lan Nguyen-Thanh, Jörn Kasbohm, Le Thi Lai, Horst-Jürgen Herbert
Publikováno v:
Geoderma. 308:159-170
We investigated the chemical and mineralogical characteristics of a weathering profile of the Nui Nua serpentinized ultramafic-mafic massif (Thanh Hoa Province, Vietnam) using TEM-EDX, XRD, and FT-IR methods to understand the effects of monsoon clima
Publikováno v:
Rare Metals. 37:72-78
The effect of hydrated radius, cation valence, pH and solution concentration on the zeta potential of clay minerals was investigated, and the relation between zeta potential of clay minerals and swelling was discussed in different leaching agents as
Publikováno v:
Journal of Solid State Chemistry. 247:20-23
Ba6Na2M2Mn2O17 (M=Nb, Ta) oxides were synthesized by high-temperature solid-state reaction. The compounds adopt 6-layer perovskite-related structure (referred to as 6C) in P 3 m1, analogous to Ba6Na2Nb2P2O17. The 6C structure consists of cubic (c) Ba
Publikováno v:
Applied Clay Science. 135:313-324
The particle size distributions (PSD) of four clay minerals from the US Clay Minerals Society, kaolinite, illite, Ca2 +-montmorillonite, and Na+-montmorillonite, were analyzed using different dispersion techniques to evaluate their PSD variability an
Autor:
Qi Rao, Yongsheng Leng
Publikováno v:
Langmuir. 32:11366-11374
The effect of layer charge on the intercalation of supercritical carbon dioxide (scCO2)–H2O mixture in Na-montmorillonite clay interlayers under T = 323 K and P = 90 bar geologic sequestration conditions has been further investigated. This effect i
Autor:
Robert A. Schoonheydt
Publikováno v:
Applied Clay Science. 131:107-112
Possible new applications of clay minerals are explored continuously. Three such areas are clay-polymer nanocomposites, clay mineral films and clay mineral catalysts. Advances in these areas must come from the increase of fundamental knowledge of the
Autor:
Angelika Brückner, Chaochao Yue, Chong Liu, Evgeny A. Pidko, Marcello Stefano Rigutto, Brahim Mezari, Emiel J. M. Hensen
Publikováno v:
Applied Catalysis. B, Environmental, 191. Elsevier
The origin of the high Brønsted acidity of Ni-SMM (Ni-substituted synthetic mica-montmorillonite; beidellite structure) clays was investigated. Ni-SMM clays with varying F content, SMM with F and Ni-SMM without F in the structure were synthesized un
Publikováno v:
Continental Shelf Research. 124:125-133
Clay minerals in surface sediments can affect the adsorption of heavy metals. However, few historical studies have focused on the influence of fine clay mineral characteristics on metal sorption. Since the reactions between heavy metals and fine clay
Autor:
Zh.A. Sapronova
Publikováno v:
Ecology and Industry of Russia. 20:14-19
The paper presents the results of studies of the effect of ultraviolet activation (UV-activated) of natural clay deposits Catoca and Catete (Angola). There were given data of X-ray diffraction data of original and washed clays, in which revealed the
Publikováno v:
American Mineralogist. 101:554-563
With the arrival of Curiosity on Mars, the MSL has started its ground validation of some of the phyllosilicate characterization carried out with remote sensing near-IR spectroscopy from orbital instruments. However, given the limited range of action