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Figure 1

From: Na-rich layered Na2Ti1−xCrxO3−x/2 (x = 0, 0.06): Na-ion battery cathode materials with high capacity and long cycle life

Figure 1

Material characterization of Na2TiO3 and Na2Ti0.94Cr0.06O2.97 synthesized at 500 °C for 6 h. (a) XRD patterns for raw materials TiO2, Cr2O3, TiO2-Cr2O3 solid solution, Na2TiO3 and Na2Ti0.94Cr0.06O2.97. (b) Crystal structure of Na2TiO3. (c) Polyhedral drawing of Na1/3Ti2/3 layers. SEM images of as-prepared Na2TiO3 (d) and Na2Ti0.94Cr0.06O2.97 (e).

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