Full text loading...
High-resolution TEM images of the iron phosphates: (a) as-synthesized , and (b) (annealed at 400 °C for 8 h).
Measured and simulated x-ray diffraction patterns of (a) as-synthesized , and (b) (annealed at 400 °C for 8 h).
Schematic representation of the basic crystal structures of iron phosphates: the variscite orthorhombic and tridymite triclinic .
Voltage profiles of the iron phosphates between 2.4 and 0 V. The cells were cycled at (a) for variscite (initial capacity of ), and (b) for tridymite (initial capacity of ).
XRD patterns of (a) the cycled and (b) cycled , during the first discharge and charge at a specific voltage.
Article metrics loading...