Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. HR-XRD patterns of as-prepared KTNO calcined at 700°C.
  • fig. S2. SEM observation of as-prepared KTiNbO5 particles.
  • fig. S3. DFT calculation for defect chemistry of HTiNbO5.
  • fig. S4. Change in unit cell structures through a and c directions as a fuction of post-annealing temperatures.
  • fig. S5. Sodium storage properties.
  • fig. S6. Ex situ TEM observation.
  • table S1. Rietveld lattice parameters of KTNO calcined at 700°C.
  • table S2. Refined unit cell parameters and R values of HTNO and its derivatives.
  • table S3. Refined atomic coordinates and site occupancies of HTNO-100.
  • table S4. Refined atomic coordinates and site occupancies of HTNO-300.
  • table S5. Refined atomic coordinates and site occupancies of HTNO-450.
  • table S6. Refined atomic coordinates and site occupancies of HTNO-700.
  • table S7. Electrochemical performances of titanium-based oxide materials as negative electrodes for NIBs by virtue of the insertion/deinsertion mechanism.

Download PDF

Files in this Data Supplement: