Sonochemically synthesized Na2Ti6O13 nanorod: an efficient electrode material for Na-ion battery

Abstract

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. The sonochemical synthesis was carried out at 20 kHz-500 W by applying sonication for 30 min at 25°C, using precursors (NaOH:TiO 2) in a molar ratio of 6:1 followed by calcination at 750°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.

Room temperature Al-induced electroless tin film deposition enabled by ultrasound irradiation

“…Recently sonochemistry has shown a broad range of applications in materials engineering with a particular focus on materials synthesis in different dimensions. Sonochemistry deals with ultrasound and the propagation of the ultrasonic wave in liquid medium results in the formation of acoustic cavitation (formation, growth & collapse of bubbles) [1]. Acoustic cavitation promotes acoustic streaming and micro-jetting, formation of shock waves, mass transport enhancement, and surface cleaning related to various electrochemical applications [2,3].…”