  Na2Ti3O7, as one of the most potential anode electrode materials, is expected
to play an important role in various fields. In this work, we synthesized
uniform hollow octahedral Na2Ti3O7 particles through directly sintering a kind
of precursors obtained by (NH4)2TiF6 and NH4OH in the presence of
sodium-containing cationic polyacrylamide. XRD, SEM, TEM were used to
characterize precursors and Na2Ti3O7 particles. In addition, the synthesis
conditions and the formation mechanism were discussed in detail. This
single-source molten salt method is flexible, efficient and controllable.
Moreover, the strategy of this method makes it possible for us to synthesize
other sodium titanate materials.
