The Effect of Ag nanoparticles on electrochemical properties of Titanate nanotubes electrode materials. (2019)

• Record Type: Journal Article
• Authors: Siwawongkasem, Kwunta; Prasoetsopha, Natkrita; Kasian, Pristanuch; Wongpratat, Unchista; maensiri, Santi
• Is Part Of: Materials today. Volume 17:Part 4(2019)
• Page Start: 1293
• Page End: 1301
• Publication Date: 2019
• Subjects: Titanate nanotubes -- Ag nanoparticles -- Electrochemical properties -- Electrode materials -- Supercapacitor; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2019.06.023
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Titanate nanotubes (TNTs) were prepared by a hydrothermal method and loaded with different silver (Ag) nanoparticle contents at 0, 1, 5 and 10 wt%. Phase composition and surface morphology were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), respectively. Energy dispersive X-ray spectroscopy (EDS) and ultraviolet-visible spectroscopy (UV-vis) were used to study element composition and optical properties, respectively. Electrochemical properties of Ag-TNTs electrodes were examined by cyclic voltammetry (CV) with a potential sweep from -0.2 V to 0.45 V at scan rates 1-200 mVs -1 . Specific capacitance was calculated from the galvanostatic charge-discharge (G-CD). Ag-TNTs samples showed increased oxidation and reduction peaks and specific capacitance from discharge time of Ag-TNTs electrode materials with increasing Ag nanoparticle content loading.