نتایج جستجو برای: carbonate ion
تعداد نتایج: 228440 فیلتر نتایج به سال:
The fundamental correlations between solubility and solvation structure for the electrolyte system comprising N-(ferrocenylmethyl)-N,N-dimethyl-N-ethylammonium bistrifluoromethylsulfonimide (Fc1N112-TFSI) dissolved in a ternary carbonate solvent mixture is analyzed using combined NMR relaxation and computational methods. Probing the evolution of the solvent−solvent, ion−solvent and ion−ion inte...
In the title solvated mol-ecular salt, 2C4H12N5 (+)·CO3 (2-)·2CH3OH, the complete carbonate ion is generated by crystallographic twofold symmetry, with the C atom and one O atom lying on the rotation axis. The cation is twisted about the central C-N bond [C-N-C-N = -137.7 (6)°]. In the crystal, the components are linked by N-H⋯O, N-H⋯N and O-H⋯O hydrogen bonds, generating a three-dimensional su...
21 Marine calcifiers are amongst the most vulnerable organisms to ocean acidification 22 due to reduction in the availability of carbonate ions for skeletal/shell deposition. 23 However, there are limited long-term studies on the possible impacts of increased 24 pCO2 on these taxa. A 7 month CO2 perturbation experiment was performed on one 25 of the most calcium carbonate dependent species, the...
Hierarchical calcium carbonate structures with multi-scale organization have been successfully fabricated covering the full range of pore sizes from nano-, to micro- to macrofeatures. The resulting 3D scaffolds, with a close resemblance to bone structures, have been evaluated in vitro and in vivo and showed great potential for bone regeneration.
[1] Eocene Thermal Maximum 2 (ETM2 or H1; 53.7 Ma) represents a short-lived warming episode, associated with the injection of a large mass of C-depleted carbon into the ocean-atmosphere system. The mass of injected carbon, the extent of deep sea dissolution, and the amount of warming during ETM2 appear to be approximately half of those documented for the Paleocene-Eocene thermal maximum (PETM, ...
Room-temperature alkali metal–sulfur batteries are promising alternatives to lithium-ion because of their high capacity and low inherent cost. Herein, we report MXene (Ti3C2Tx) as a host confine sulfur (S8), enabling the use commercialization-friendly carbonate electrolyte in batteries. The multilayer structure provides tunable spacing for S8 confinement, its unique interlayer prevents adverse ...
Prevention of mineral fouling, known as scale, is a long-standing problem in a wide variety of industrial applications, such as oil production, water treatment, and many others. The build-up of inorganic scale such as calcium carbonate on surfaces and facilities is undesirable as it can result in safety risks and associated flow assurance issues. To date the overwhelming amount of research has ...
Elevations in atmospheric carbon dioxide (CO2) are anticipated to acidify oceans because of fundamental changes in ocean chemistry created by CO2 absorption from the atmosphere. Over the next century, these elevated concentrations of atmospheric CO2 are expected to result in a reduction of the surface ocean waters from 8.1 to 7.7 units as well as a reduction in carbonate ion (CO32-) concentrati...
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