Fig. 2: Fabrication and characterization of Ti0.87O2 nanosheets and Ti0.87O2/PP separators.
From: Atomic-scale regulation of anionic and cationic migration in alkali metal batteries
a Crystal structures of Ti0.87O2 nanosheet with respect to c- and b-axes. Enlarged structure using ionic radii to show the relative size of the Ti vacancy. b AFM image of Ti0.87O2 nanosheets. The nanosheets were deposited onto Si wafer substrates. c TEM image and SAED pattern of a Ti0.87O2 nanosheet. d HAADF-STEM image of a Ti0.87O2 nanosheet. e X-ray absorption near edge structure (XANES) of Ti K edge for commercial rutile TiO2 and a freeze-dried sample of Ti0.87O2 nanosheets. f The k3-weighted EXAFS in K-space for commercial rutile TiO2 and a freeze-dried sample of Ti0.87O2 nanosheets. g Fourier transforms of k-space oscillations of Ti K edge of commercial rutile TiO2 and a freeze-dried sample of Ti0.87O2 nanosheets. h SEM image showing a top-down view of a Ti0.87O2/PP separator. i SEM image showing a side-on view of a Ti0.87O2/PP separator. j TEM image showing a side view of a Ti0.87O2/PP separator. k Li-ion conductivity and Li-ion transference number of PP, anatase TiO2/PP, GO/PP, and Ti0.87O2/PP separators. Error bars were included, which represent the standard deviation of the data taken from five samples.
