Masih Darbandi
University of Tabriz, Iran
Title: Cobalt hydroxide nanorings: from synthesis, characterization toward electrochemical energy storage
Biography
Biography: Masih Darbandi
Abstract
With surging the environmental problem and global energy crisis, the demands for clean, regenerative, and sustainable energy supplements are increasing in recent years. Co(OH)2 NPs have been attractive since the beginning of the nanotechnology due to their characteristics such as additive in batteries, supercapacitor, catalysis, etc. We have developed a route toward the synthesis of Co(OH)2 NPs, which does not require any template or surfactant, with enhanced electrochemical energy storage performance with high capacitance retention capability. The physicochemical features of the as-prepared Co(OH)2 nanorings were characterized by transmission electron microscopy (TEM), X-ray diffraction (XRD), scanning electron microscopy (SEM) and nitrogen absorption–desorption. Structural characterizations represents an excellent mesoporous structure for the as-prepared Co(OH)2. Due to its especial structure, the as prepared Co(OH)2 NPs posing a high porosity for better electrolyte accessibility along with large surface area for higher electrochemical reaction rates. As a result, the NPs exhibited an excellent electrochemical capacitor performance. Moreover, this simple, low cost, reproducible friendly synthesis process, reported herein, could be extended to the controlled synthesis of other functional hydroxide NPs with well-defined morphologies and shapes. The ease of the precipitation production of these NPs could be scaled up to industrial-scale manufacture for the aforementioned real-world commercial applications.