Synthesis of Nanomaterials and their Composites for Energy Conversion and Storage

Abstract

In the present thesis work, a single-step surfactant-free gram scale hydrothermal synthesis of mesoporous Ni(OH)2 nanoparticles and the Ni(OH)2-reduced graphene oxide (Ni(OH)2-r-GO) nanocomposite. Interesting morphological features are noted. These nanomaterials are examined and compared as anode materials for pseudo-capacitor application through detailed characterizations. A high specific capacitance (Cs) of 1538 F/g is observed for Ni(OH)2-r-GO at a high current density of 40 A/g, whereas at the same current rate bare Ni(OH)2 shows Cs of only 936 F/g.