Several exchangers were found to have high selectivity for cesium and strontium. These exchangers are sodium phlogopite, layered sodium titanium silicate Na2TiSi2O7·2H2O, framework niobium (Na2Nb4Si2O15·4H2O, tentative formula), zirconium (Na2ZrSi3O9·H2O) and titanium (Na2Ti2SiO7·2H2O) ...
48) (Error bars represent the range of measurements over the many events for SWNT). Panel (d) shows the schematic diagram of a synthetic ion channel formed by MOP-18 (5 nm) in lipid bilayers with framework formula of Cu24(5‐OC12H25‐mBDC)24 and a large cavity (yellow sphere, ...
内容提示: Ion Formula Chart Names, Formulae and Charges for Some of the Common Ions 1+ {Alkili metals form 1+ cations} + Cesium, Cs+ Copper (I), Cu+ Gold (I), Au+ Hydrogen, H+ Hydronium, H3O+ Indium (I), In+ Lithium, Li+ Methylammonium, CH3NH3Potassium, K+ Rubidium, Rb+ ...
Figure 67 shows a Magnetoplumbite (M)-type crystal structure whose chemical formula is SrFe3+12O19 (Kojima, 1982; Landolt-Bornstein). Oxygen ions, which form hexagonal closed packing, are partially substituted by strontium ions (Sr2+) or barium ions (Ba2+). Ferrous ions (Fe3+) exit bet...
The exchange capacity of the gels approach but never equal this value. The crystals do not exchange with cesium ion whereas the gels have a high cesium exchange capacity. A tentative explanation for this behaviour is presented based on structural considerations. 展开 ...
(cesium chloride) lattice types are considered, and the pressure-induced phase transition between them is predicted. First- and second-nearest-neighbor short-range interactions between the ions have been included for the $B1$ phase, while third-nearest-neighbor interactions were also needed for the...
These effects can be orders of magnitude in size and are the reason to use oxygen primary beams for positive secondary ion and cesium for negative secondary ion analyses in ion probes. Crystal structure can also play a role when, depending on the orientation, primary ions may or may not ...
A zirconia-pillared and an alumina-pillared montmorillonite clay were found to exhibit high K ds for trace levels of cesium (2.5 ppb) in the presence of high concentrations of Ca2+ Mg2+ and Na+ ions with distribution coefficients (K ds for 137Cs exceeding 1×105 mL/g over a wide range ...
A new polyoxometalate of chemical formula, Na-2(H2O)(4)(H3O)[Al(OH)(6)Mo6O18] (1) containing Anderson type large anion has been synthesized and characterized by single-crystal X-ray structure determination and IR spectroscopic studies. The crystal of 1 is triclinic, spacegroup P-1 with ...
10.1038/srep16270 3 www.nature.com/scientificreports/ Compound name Molecular formula Sum formula Formula weight (g mol−1) Crystal system Space group Z a/Å b/Å c/Å α /° β /° γ /° V/Å3 Temperature (°C) Wavelength (Å) R-exp (%) R-p (%) R-wp (%)...