This book covers nanostructure materials for application as supercapacitors. It highlights the properties that make them ideal for energy storage applications. It reports approaches on their electronic, electrical, thermal properties to increase their specific surfaces in order to improve their electrical storage capacities. This book consolidates information on synthesis, characterization and application for supercapacitors with detailed characterization, mechanistic approaches and theoretical consideration. The progress in experimental and theoretical studies on various properties of nanomaterials and its polymer and other composites are described in detail.

A fresh and innovative technology is currently being recognized as a viable replacement for batteries. Research in the field of supercapacitors, as well as in the area of ceramic materials and their application to supercapacitor development, has spawned Nanostructured Ceramic Oxides for Supercapacitor Applications. Featuring key contributions from

The goal of this thesis is to produce NiO- and Ni(OH)2-carbon based nanocomposites and explore their possible adoption as active electrode materials in supercapacitor and gas sensing applications. Field-emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM), energy dispersive X-ray spectroscopy (EDX), X-ray powder diffraction (XRD), Raman spectroscopy, Fourier transform infrared (FTIR) spectroscopy, thermal gravimetric analysis (TGA), X-ray photoelectron spectroscopy (XPS) and gas adsorption analyses were utilized to evaluate the structure and morphology of all samples in this study. The major aim of integrating carbon-based nanomaterials (graphene foam, graphene oxide and activated carbon) into Ni-based oxides and hydroxides in this study is to take advantage of their outstanding characteristics. These include good electrical conductivity, high corrosion resistance, large SSA, low-cost, good cyclic and temperature stability, as well as the capability to serve as a substrate for growth of other materials to form a suitable composite. The electrochemical evaluation as a potential supercapacitor electrode was employed in a three (3)-electrode configuration for the as-prepared Ni(OH)2/carbon based electrodes (NiOH)2/graphene foam and Ni(OH)2/graphene oxide electrodes) while the gas sensing characteristics of NiO/carbon-based electrodes were investigated using NCSM-CSIR gas sensing station controlled by a KEITHLEY pico-ammeter system. The electrochemical results of Ni(OH)2/carbon-based electrodes have demonstrated a superior electrochemical performance as compared to the pristine Ni(OH)2 electrodes with the results comparable and even better than some earlier related studies available in the literature. Similarly, NiO/carbonbased electrodes in the form of NiO/graphene foam and NiO/activated carbon electrodes both exhibited enhanced gas sensing properties in comparison to the pristine NiO electrode due to the increased specific surface area and electrical conductivity that are linked to its sensing response, response time and recovery time. Thus, the results obtained from these studies have clearly established the viability of these carbon-based nanomaterial composites as promising candidates for electrochemical supercapacitor and gas sensing applications.

Among electrode materials, inorganic materials have received vast consideration owing to their redox chemistry, chemical stability, high electrochemical performance, and high-power applications. These exceptional properties enable inorganic-based materials to find application in high-performance energy conversion and storage. The current advances in nanotechnology have uncovered novel inorganic materials by various strategies and their different morphological features may serve as a rule for future supercapacitor electrode design for efficient supercapacitor performance. Inorganic Nanomaterials for Supercapacitor Design depicts the latest advances in inorganic nanomaterials for supercapacitor energy storage devices. Key Features: Provides an overview on the supercapacitor application of inorganic-based materials. Describes the fundamental aspects, key factors, advantages, and challenges of inorganic supercapacitors. Presents up-to-date coverage of the large, rapidly growing, and complex literature on inorganic supercapacitors. Surveys current applications in supercapacitor energy storage. Explores the new aspects of inorganic materials and next-generation supercapacitor systems.

This book provides a comprehensive overview of the latest developments and materials used in electrochemical energy storage and conversion devices, including lithium-ion batteries, sodium-ion batteries, zinc-ion batteries, supercapacitors and conversion materials for solar and fuel cells. Chapters introduce the technologies behind each material, in addition to the fundamental principles of the devices, and their wider impact and contribution to the field. This book will be an ideal reference for researchers and individuals working in industries based on energy storage and conversion technologies across physics, chemistry and engineering. FEATURES Edited by established authorities, with chapter contributions from subject-area specialists Provides a comprehensive review of the field Up to date with the latest developments and research Editors Dr. Mesfin A. Kebede obtained his PhD in Metallurgical Engineering from Inha University, South Korea. He is now a principal research scientist at Energy Centre of Council for Scientific and Industrial Research (CSIR), South Africa. He was previously an assistant professor in the Department of Applied Physics and Materials Science at Hawassa University, Ethiopia. His extensive research experience covers the use of electrode materials for energy storage and energy conversion. Prof. Fabian I. Ezema is a professor at the University of Nigeria, Nsukka. He obtained his PhD in Physics and Astronomy from University of Nigeria, Nsukka. His research focuses on several areas of materials science with an emphasis on energy applications, specifically electrode materials for energy conversion and storage.