Synthesis and properties of metals doped NiO nanoparticles

Abstract

Now a days nanostructured materials are used for the development newlineof new technologies and applications in vast areas like energy storage devices magnetic data storage sensors spintronics nanoelectronic devices and so on Energy crisis is a big issue faced by the world today to solve this issue renewable energy sources and energy storage devices are needed Specific capacitance of the conventional supercapacitors is enhanced by the advancement of nanotechnology Super capacitors are energy storage devices with long life cycle and high power density Transition metals are the efficient materials used as the electrode materials of supercapacitors Nanomaterials exhibit genuine physical chemical magnetic and electrochemical properties newlinebecause they have low coordination number high surface energy quantum size effect and atoms are highly reactive Different forms of nanomaterials are used as the electrode materials of supercapacitors to enhance its specific capacitance value The properties of the nanomaterials are improved by controlling the parameters like shape size crystal structure and composition Samples with one dimension and zero dimensions have unique properties than the bulk material When materials are reduced to one dimension like nanoparticles they are having high surface to volume ratio and high surface energy Magnetic nanoparticles play a vital role in magnetic data newlinestorage Giant Magneto Resistance GMR and spintronics newlineThe main goal of the thesis is to analyze the structural optical newlinemagnetic and electrochemical performance of nickel oxide nanoparticles with metal doping The electrochemical performance of nickel oxide nanoparticles are studied and used as the electrode material for super capacitors newline