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XAFS study of the coordination and local relaxation around Co2+, Zn2+, Pb2+, and Ba2+ trace elements in calcite
XAFS coordination local relaxation trace elements calcite
2012/3/31
Analysis of divalent Co, Zn, Pb, and Ba XAFS spectra of synthetic and natural calcite samples
containing trace concentrations of these heavy metals confirms their substitution in the unique Ca
site ...
XAFS spectroscopic study of uranyl coordination in solids and aqueous solution
XAFS uranyl coordination solids aqueous solution
2012/4/5
ToevaluatetheabilityofX-rayabsorption?nestructure(XAFS)spectroscopytoelu-
cidatethecoordinationenvironmentofUatthesolid-waterinterface,weconductedan
in-depthanalysisofexperimentalXAFSdatafromUsolida...
Octahedral versus tetrahedral coordination of Al in synthetic micas determined by XANES
Octahedral versus tetrahedral coordination Al synthetic micas determined XANES
2012/4/5
WeusedtheJUMBOmonochromatoratSSRLtomeasuretheAl K-edgeX-rayab-
sorptionspectraofsyntheticmicashavingvariableAlcontentandoccupancy,from0to
2 intheoctahedralMpositions,and0to inthetetrahedralTposition...
Coordination of Ti4+ in silicate glasses: A high-resolution XANES spectroscopy study at the Ti K edge
Coordination of Ti4+ silicate glasses high-resolution XANES spectroscopy study Ti K edge
2012/4/1
The coordination environment of Ti in eight Ti-bearing glasses of the Na Si-Na,Ti
y4 ;:join (NTS) and in six ATY2 glasses (A20Ti02.2Y02, with A =Na, K, ~r Rb andSi or Ge) was determined using high-re...
The coordination numbers of Na and K atoms in low albite and microcline as determined from a procrystal electron-density distribution
The coordination numbers Na and K atoms low albite microcline electron-density distribution
2012/4/9
Procrystal modelsfor the electron-density distributions oflow albite and microcline were constructed by placing spherically averaged Clementi-Roetti atomic wave functions at ex-perimentally observed a...
The crystal structure of namuwite, a mineral with ZN in tetrahedral octahedral coordination, and its relationship to the synthetic basic zinc sulfates
The crystal structure of namuwite ZN coordination relationship synthetic basic zinc sulfates
2012/4/5
The crystal structure of namuwite, (Zn,Cu)4S04(OHk4H20, trigonal, a = 8.331(6), C = 10.54(1) A,V=634(1) A3,Pj, Z = 2, has been solved by direct methods and refined to an R index of 7.9% using MoKa X-r...
Coordination of Si in Na2O-SiO2-P2O5 glasses using Si K- and L-edge XANES
Coordination of Si Na2O-SiO2-P2O5 glasses Si K- and L-edge XANES
2012/4/5
Si K- and L-edge X-ray absorption near-edge structure (XANES) of SiOz-PzOs and NazO-SiOz-PzOs glasses containing PzOsabove 30mol%wereinvestigated using synchro-tron radiation. BothSiK-and L-edge spect...
THE COORDINATION OF ALUMINUM IONS IN THE PALYGORSKITE STRUCTURE
Al-coordination MAS-NMR Palygorskite
2011/11/4
Abstract--NMR spectra ofPF1 - 1 Floridan palygorskite strongly suggest that AI 3§ occurs only in octahedral coordination. X-ray microanalysis of the palygorskite fibers indicate a chemical composition...
The Coordination of Aluminum Ions in the Palygorskite Structure
Al-coordination MAS-NMR Palygorskite
2011/12/31
NMR spectra of PF1-1 Floridan palygorskite strongly suggest that Al3+ occurs only in octahedral coordination. X-ray microanalysis of the palygorskite fibers indicate a chemical composition defined by ...
Coordination Complexes of p-Hydroxybenzoate on Fe Oxides
Adsorption Ferrihydrite Goethite Hematite Infrared spectroscopy Iron oxides p-Hydroxybenzoate
2012/1/5
Adsorption of p-hydroxybenzoate anion on synthetic Fe oxides, hydroxides, and oxyhydroxides (hereafter referred to as oxides) was measured at pH 5.5, and the organic-oxide interaction was characterize...