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Ion exchange chromatography separates charged molecules from a solution by reversibly exchanging them with mobile, or 'active', ions associated with the oppositely charged stationary phase. This method can be used to separate ions, soften and deionize water, and purify solutions. The polymers comprising the ion-exchange column are high-molecular-weight and chemically stable polymers, crosslinked to be porous and essentially insoluble. They are also functionalized with either acidic or...
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Metal ions can be separated from one another by complexation with organic ligands–the chelating agent– to form uncharged chelates. Here, the chelating agent must contain hydrophobic groups and behave as a weak acid, losing a proton to bind with the metal. Since most organic ligands used in this process are insoluble or undergo oxidation in the aqueous phase, the chelating agent is initially added to the organic phase and extracted into the aqueous phase. The metal-ligand complex is...
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Ladder diagrams are useful tools for understanding redox equilibrium reactions, especially the effects of concentration changes on the electrochemical potential of the reaction. The vertical axis in the redox ladder diagrams represents the electrochemical potential, E. The area of predominance is demarcated using the Nernst equation.
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Electrodeposition is a technique used to separate an analyte from interferents by electrochemical processes. Here, the analyte is a metal ion that can be deposited on an electrode immersed in the sample solution. The electrochemical setup consists of an anode and a cathode. When an electric current is applied to the setup, oxidation occurs at the anode. At the cathode, which consists of a large metal surface, metal ions undergo reduction and deposit onto the surface.
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Correction: Composition-dependent charge transfer and phase separation in the V1-xRexO2 solid solution.

D Mikhailova1, N V Kuratieva2, Y Utsumi3

  • 1Karlsruhe Institute of Technology (KIT), Institute for Applied Materials (IAM), Hermann-von-Helmholtz-Platz 1, D-76344 Eggenstein-Leopoldshafen, Germany. daria.mikhailova@kit.edu and Institute for Complex Materials, IFW Dresden, Helmholtzstr. 20, D-01069 Dresden, Germany and Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Str. 40, D-01187 Dresden, Germany. yuki.utsumi@synchrotron-soleil.fr.

Dalton Transactions (Cambridge, England : 2003)
|November 24, 2017
PubMed
Summary
This summary is machine-generated.

This correction clarifies findings on vanadium rhenium oxide (V-Re-O) solid solutions. It addresses charge transfer and phase separation, crucial for understanding material properties.

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Area of Science:

  • Solid-state chemistry
  • Materials science
  • Inorganic chemistry

Background:

  • Vanadium dioxide (VO2) exhibits a metal-insulator transition.
  • Doping VO2 with rhenium (Re) alters its electronic and structural properties.
  • Understanding composition-dependent effects is key for tuning material performance.

Purpose of the Study:

  • To correct and clarify previously reported data.
  • To provide accurate insights into charge transfer mechanisms.
  • To refine the understanding of phase separation in V1-xRexO2.

Main Methods:

  • Correction of experimental data analysis.
  • Re-evaluation of spectroscopic and diffraction results.
  • Thermodynamic modeling of phase equilibria.

Main Results:

  • Revised charge transfer pathways identified.
  • Accurate phase boundaries established for the V-Re-O system.
  • Phase separation behavior refined based on corrected data.

Conclusions:

  • The corrected data provide a more accurate picture of electronic interactions.
  • Precise understanding of phase separation is essential for material design.
  • This correction ensures reliability for future research on V1-xRexO2 materials.