Hydrothermal synthesis of intertwining network structured TiO2 nanocomposite: A promising material for the effective monitoring of dopamine and anodic performance in lithium-ion battery

摘要

In the present study, TiO2-MWCNTs@Gr (TMCG) intertwining nanocomposite based electrochemical sensor was developed for the electrochemical sensing of dopamine (DA) and also tested as an anode material for lithium-ion batteries (LIBs). The intertwining nanocomposite was synthesized by hydrothermal method and was characterized using X-ray diffraction (XRD), Field emission scanning electron microscopy (FESEM) and Transmission electron microscopy (TEM). The TMCG nanocomposite electrode exhibited anti-influence in potentials when determining DA, paracetamol (PC) and tyrosine (TY) simultaneously. Under the optimum conditions, a broad linear response for the concentration of DA was observed in the range between 5.0-240 mu M with a lower detection limit of 0.62 mu M. The newly fabricated sensor exhibited satisfactory recoveries towards the pharmaceutical applications. Moreover, as an anode material in LIBs, the intertwining network like structured TMCG nanocomposite demonstrated a high discharge capacity of 302 mA h g(-1) and retained 94% of columbic efficiency even after 100 cycles. The demonstrations conclude that the TMCG nanocomposite exhibited high electrocatalytic activity, sensitivity towards the detection of DA and also exhibited excellent discharge capacity and is found to have multiple applications in the field of medicine as well as energy conversion and storage.