scholarly journals Combining selective sequential extractions, X-Ray Absorption Spectroscopy, and X-Ray Powder Diffraction for Cu (II) speciation in soil and mineral phases

2017 ◽  
Vol 6 (2) ◽  
pp. 114-114 ◽  
Author(s):  
Tatiana Minkina ◽  
Dina Nevidomskaya ◽  
Alexander Soldatov ◽  
David Pinskii ◽  
Fariz Mikailsoy ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Sequential Extractions ◽  
X Ray ◽  
Mineral Phases ◽  
X Ray Absorption

scholarly journals Sr2Fe1+xRe1−xO6 double perovskites: magnetoresistance and (magneto)thermopower

2019 ◽  
Vol 55 (42) ◽  
pp. 5878-5881 ◽  
Author(s):  
Antoine Maignan ◽  
Christine Martin ◽  
Oleg Lebedev ◽  
Jonas Sottmann ◽  
Lucie Nataf ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Double Perovskites ◽  
X Ray ◽  
Transmission Electron ◽  
X Ray Absorption

Polycrystalline Sr2Fe1+xRe1−xO6 samples have been synthesized, structurally characterized by X-ray powder diffraction, transmission electron microscopy, X-ray absorption spectroscopy, and measurements of their magnetotransport properties were performed.

New Synthetic Pathways to Mesostructured Thiogermanates

1998 ◽  
Vol 547 ◽  
Author(s):  
N. Oberender ◽  
M. Fröba
Keyword(s):  
Electron Microscopy ◽  
Thermal Analysis ◽  
Transmission Electron Microscopy ◽  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Metal Chalcogenides ◽  
Templated Synthesis ◽  
X Ray ◽  
Transmission Electron ◽  
X Ray Absorption

AbstractThe synthesis and characterisation of several mesostructured thiogermanates are shown. In particular the first supramolecular templated synthesis of mesostructured binary metal chalcogenides in a microwave is presented. The obtained products are characterised by x-ray powder diffraction, transmission electron microscopy, thermal analysis and x-ray absorption spectroscopy.

Electrochemical Reduction of Ag0.48VOPO4: A Mechanistic Study Employing X-Ray Absorption Spectroscopy and X-Ray Powder Diffraction

2015 ◽  
Vol 162 (8) ◽  
pp. A1537-A1543 ◽  
Author(s):  
Kevin C. Kirshenbaum ◽  
Melissa C. Menard ◽  
Young Jin Kim ◽  
Amy C. Marschilok ◽  
Kenneth J. Takeuchi ◽  
...  
Keyword(s):  
Electrochemical Reduction ◽  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Mechanistic Study ◽  
X Ray ◽  
X Ray Absorption

Synchrotron X-ray absorption spectroscopy and X-ray powder diffraction studies of the structure of johnbaumite [Ca10(AsO4)6(OH,F)2] and synthetic Pb-, Sr- and Ba-arsenate apatites and some comments on the crystal chemistry of the apatite structure type in general

2009 ◽  
Vol 73 (3) ◽  
pp. 433-455 ◽  
Author(s):  
C. M. B. Henderson ◽  
A. M. T. Bell ◽  
J. M. Charnock ◽  
K. S. Knight ◽  
R. F. Wendlandt ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Powder Diffraction ◽  
Divalent Cations ◽  
Twist Angle ◽  
Published Data ◽  
Apatite Structure ◽  
X Ray ◽  
Cell Parameters ◽  
Composition Formula ◽  
X Ray Absorption

AbstractThe chemical composition oft he natural arsenate-apatite mineral johnbaumite [nominally Ca10(AsO4)6(OH)2] and its alteration product hedyphane [Ca4Pb6(AsO4)6Cl2] have been determined by electron microprobe analysis and the structures ofjohnbaumite and synthetic Sr-, Ba- and Pbarsenate apatites have been studied by As K-edge X-ray absorption spectroscopy and synchrotron X-ray powder diffraction. All samples belong to the holosymmetric apatite space group P63/m with As5+ substituted for P5+ in the tetrahedral structural site. Johnbaumite contains small amounts ofF and Pb (~0.9 and ~4.4 wt.% respectively) and hedyphane has the ideal composition (formula given above); the compositions of these coexisting phases define the two limbs ofa solvus occurring between Ca- and Pb-arsenate apatite end members. The unit-cell parameters and cation–oxygen bond lengths for the arsenate apatites studied are discussed alongside published data for end-member Ca-, Sr-, Ba- and Pbphosphate apatite analogues with (OH), F, Cl or Br as the anions at the centres of the channels in the apatite structure. This discussion rationalizes the relationships between the two structural sites A(1) and A(2) occupied by divalent cations in terms of the size of the A–O polyhedra and the distortion of the A(1)–O polyhedron as measured by the metaprism twist angle [O(1)–A(1)–O(2) projected onto (001)].

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