• SWATILEKHA GHOSH

      Articles written in Bulletin of Materials Science

    • Sonochemically synthesized Na$_2$Ti$_6$O$_{13}$ nanorod: an efficient electrode material for Na-ion battery

      SWATILEKHA GHOSH

      More Details Abstract Fulltext PDF

      A simple cost-effective wet synthesis route has been proposed for synthesis of Na$_2$Ti$_6$O$_{13}$, which is an efficient anode material that can be used for 1–3 volt batteries. The material has been synthesized by sonochemical route,which offers two distinct features: (1) energy-savvy (green) synthesis by significantly lowering the final calcination temperature and duration, and (2) formation of uniform and nano-scale particles suitable for battery application. Thesonochemical synthesis was carried out at 20 kHz–500 W by applying sonication for 30 min at 25$^{\circ}$C, using precursors (NaOH:TiO$_2$) in a molar ratio of 6:1 followed by calcination at 750$^{\circ}$C for 1 h in air. This material showed excellent reversible electrochemical performance (up to 93% retention) and offers reversible capacity around 40 mAh g$^{-1}$ acting to be 0.82 V anode for Na-ion battery.

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