Structure Characterization and Ionic Conductivity of Ag2VP2O8

Catalytic Properties of Silver Vanadium Phosphates in n‐Butane Oxidation – Considerations on the Impact of the [VxOy] Substructure

“…1. The XRPD patterns of Ag 2 VO 2 PO 4 and Ag 2 VOP 2 O 7 catalysts correspond well to theoretical patterns of these phases calculated from single crystal data as reported in [22] and [20], respectively. The XRPD pattern of Ag 2 VP 1.6 O 7+d could not be assigned to known crystalline compounds.…”

“…The highly active and selective (VO) 2 P 2 O 7 catalyst has the optical basicity K = 0.49 [33]. Since Ag + ions (K = 1.25 for [20,22,36,38,39].…”

Silver vanadium diphosphate Ag2VP2O8: Electrochemistry and characterization of reduced material providing mechanistic insights

“…Atomic positions and U iso values from the Rietveld refinement of the previously reported Ag 2 VP 2 O 8 were used as starting parameters. 24 Silver vanadium diphosphate has the P21/c space group with the structure having several notable features. The structure is formed by layers which stack along the y -direction which can be considered as VPO 8 chains comprised of VO 6 octahedra and PO 4 tetrahedra where each VO 6 octahedron shares one corner with P(2)O 4 (Figure 2).…”

“…The X-ray diffraction patterns were indexed to Ag 2 VP 2 O 8 (PDF 01-088-0436). 24 XRD data of a representative sample with a fixed-step width of 0.01q at 8 s/step for Rietveld analysis. Structure refinement was performed using the software package GSAS and the EXPGUI interface.…”

Neutron Diffraction, Mössbauer Spectrum, and Magnetic Behavior of Ag2FeMn2(PO4)3 with Alluaudite-like Structure

“…1) and the constituents are related by a 2 -screw axis, parallel to the b-axis, thus giving rise to an open framework with two di!erent kinds of channels running along the c-axis. The channels are occupied by the silver cations within an eightfold coordination (14,15) which suggest an ionic mobility in the compound. This paper deals with the X-ray and neutron structure re"nement, the MoK ssbauer study, and the magnetic behavior of the new Ag FeMn (PO ) compound.…”