The Synthesis of Zn-doped Titanate Nanowires for Electrochemical Energy Storage
Pristanuch Kasian(a*), Sukanya Nilmoung(b)
744 Sura Narai Rd, Nai-muang, muang, Chang Wat Nakhon Ratchasima 30000, pristanuch.ka[at]rmuti.ac.th
Department of Applied Physics, Faculty of Sciences and Liberal Arts, Rajamangala University of Technology Isan
Abstract
Zn-doped titanate nanowires (TNWs) with the chemical formula of ZnxTi3-xO7 (Na0.96 H1.04 × 3.42H2O) where x = 0, 0.05, 0.1, 0.2, and 0.3 were synthesized by a hydrothermal method at a temperature of 130 °C for 24 h. The synthesized samples were characterized by scanning electron microscope (SEM), X-ray diffraction (XRD), and Brunauer-Emmett-Teller (BET) techniques. It was found that, the diameter and length of the nanotubes were in scale of nanometer. Electrochemical properties of prepared samples were investigated by cyclic voltammetry (CV), galvanostatic charge - discharge (GCD) and electrochemical impedance spectra (EIS) methods. The specific capacitance of 23 F g-1 (at 1 mV s-1) was observed for Zn-doped TNWs.
Keywords: Energy storage, Zn-doped TNWs, Electrochemical properties
Topic: Nano-materials and applications