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搜索结果: 1-15 共查到矿床学与矿相学 nuclear magnetic resonance相关记录18条 . 查询时间(0.183 秒)
Abstract: Silanol groups in protonated magadiite (H-magadiite) were characterized by 1H and 2H solid-state nuclear magnetic resonance (NMR). H-magadiite and deuterated (D) magadiite were synthesized b...
Abstract: Self-diffusion coefficients of H2O molecules in Na-rich hectorite gel were measured by 1H nuclear magnetic resonance (NMR). Spin-echo pulse sequences with magnetic field gradient pulses for ...
Abstract: As a consequence of treatments with glycine solutions, glycine molecules enter the interlayer of both Ca- and Cd-rich montmorillonite. Measurements of d value suggest that at low glycine con...
Abstract: 113Cd solid-state nuclear magnetic resonance (NMR) was used to identify possible Cd2+ adsorption sites in montmorillonite. The montmorillonite was treated with 0.1 and 1 M CdCl2 aqueous solu...
In framework aluminosilicate materials (e.g., feldspars, zeolites and many others), it is generallyassumed that AlOtetrahedra do not share corners, i.e., that Al-O-Al oxygen sites are avoided whenstoi...
Abstract: A swelling mica, Na2Mg3(Al2Si2)O10F2·xH2O, (hereafter Na-4 mica”) was synthesized from metakaolinite + MgO and Mg aluminosilicate gels at different temperatures and durations using NaF flux...
Abstract: When Li-saturated montmorillonite is heated to 200?00 癈, the Li ions migrate from interlayer positions to sites in the layer structure. However, the identity of these sites has not been clea...
A series of natural clays, including 1:1 layer silicates (serpentines, kaolin minerals), smectites, vermiculite, micas, talc, pyrophyllite, sepiolite, and palygorskite, were studied by 19F magic-angle...
Abstract: 2-Phenethylamine 13C-enriched in the beta position was adsorbed on four different aluminum-exchanged days: hectorite, Barasym, Laponite RD, and lithium taeniolite. The sites for adsorption w...
The mechanisms of palygorskite and sepiolite alteration to smectite under mild hydrothermal conditions were investigated by solid-state 27Al and 29Si magic-angle spinning-nuclear magnetic resonance (M...
Observation of quadrupolar splittings for 2H and 17O nuclei from D2O solvent molecules in suspensions of the Ecca Gum BP bentonite points unambiguously to the ordering of water molecules with respect ...
The capabilities of X-ray powder diffraction (XRD), infrared absorption (IR), solid-state magic-angle-spinning nuclear magnetic resonance (MAS-NMR), and chemical dissolution methods were assessed for ...
Solid-state nuclear magnetic resonance (NMR) spectroscopy, thermal analysis, and X-ray powder diffraction data on the tubular, hydrous aluminosilicate imogolite were found to be fully consistent with ...
Abstract: The introduction of artificial ±b/3 stacking faults into well-crystallized kaolinite by intercalating and removing hydrazine had no observable effect on the solid-state 29Si nuclear magnetic...
Dimethylselenoxide (DMSeO) forms three structurally resolvable intercalates with kaolinite (d(001) = 10.95, 11.26, and 11.38 侌). The 11.26-侌 kaolinite: DMSeO intercalate is structurally analogous to t...

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