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Supplementary Figures and Tables from Effect of Hf-doping on electrochemical performance of anatase TiO<sub>2</sub> as an anode material for lithium storage
No full textFigure S1: SEM image and elemental mapping of Ti, O, and Hf for Ti<sub>0.95</sub>Hf<sub>0.05</sub>O<sub>2</sub>; Figure S2: XPS high-resolution spectra of (a) Ti 2p, (b) O 1s, (c) Hf 4f, and (d) C 1s regions for Ti<sub>0.95</sub>Hf<sub>0.05</sub>O<sub>2</sub> sample; Figure S3: Dependence of Z<sup>'</sup> on ω<sup>–1/2</sup> at low frequencies; Table S1: Binding energy and atomic concentration of elements in Ti<sub>0.95</sub>Hf<sub>0.05</sub>O<sub>2</sub> sample; Table S2: Dependence of <i>E</i><sub>g(1)</sub>, <i>B</i><sub>1<i>g</i>(1)</sub>, and <i>E</i><sub><i>g</i>(3)</sub> peaks positions on Hf/Ti atomic rati
