A review on the heterostructure nanomaterials for supercapacitor application (original) (raw)
Related papers
Electrode Materials for Supercapacitors: A Review of Recent Advances
Catalysts
The advanced electrochemical properties, such as high energy density, fast charge–discharge rates, excellent cyclic stability, and specific capacitance, make supercapacitor a fascinating electronic device. During recent decades, a significant amount of research has been dedicated to enhancing the electrochemical performance of the supercapacitors through the development of novel electrode materials. In addition to highlighting the charge storage mechanism of the three main categories of supercapacitors, including the electric double-layer capacitors (EDLCs), pseudocapacitors, and the hybrid supercapacitors, this review describes the insights of the recent electrode materials (including, carbon-based materials, metal oxide/hydroxide-based materials, and conducting polymer-based materials, 2D materials). The nanocomposites offer larger SSA, shorter ion/electron diffusion paths, thus improving the specific capacitance of supercapacitors (SCs). Besides, the incorporation of the redox-ac...
Electrochimica Acta, 2023
High performance supercapacitors have taken their place in the world as one of the research areas emerging in order to feed increasing energy consumption. By using metal oxides in electrode structures, supercapacitors have become advantageous products and have shed light on electrochemistry as low-cost materials. In this study, it was aimed to obtain nanocomposite materials as anode electrodes (FeCo 2 O 4 /Co 3 O 4 /Co 3 V 2 O 8 /Ni =FeCoVN) by using hydrothermal method for low cost, high storage capacity electrodes and synthesis of direct transition metal oxide (FeCo 2 O 4) and cobalt vanadate (Co 3 V 2 O 8) on nickel foam (Ni). A number of structures such as heterostructures and hierarchical nanosphere with nanowire, nanorod, nanoflake, nanoplate structures were obtained. The relationship between temperature, reaction time and FeCl 3 amount (g) parameters and changing electrochemical performances of the samples were interpreted by cyclic voltammetry (CV), galvanostatic chargedischarge measurements (GCD) and electrochemical impedance spectroscopy (EIS). Among anode electrodes, it was determined that the sample (the sample named 072-5 h) with a reaction time of 5 h at 120 • C and containing 0.72 g FeCl 3 had the largest area in the CV (5 mV/s and from − 0.3 to +0.6 V analysis. It has also been found that this sample has the largest capacitance value (3.5 F/cm 2). When the GCD analysis results (for 1 A/cm 2 current density) of 072-5 h nanocomposite material are evaluated, it can be said that it is the sample that preserves symmetry and linearity best and has the longest charge-discharge time. This shows that the 072-5 h nanocomposite material is promising for anode supercapacitors compared to other synthesized samples.
Supercapacitors are energy storage devices emerging as one of the promising energy storage devices in the future energy technology. In this perspective, rapid progress is made in the development of fundamental and applied aspects of supercapacitors. Various techniques have been developed specifically to estimate the specific capacitance. Numerous efforts were made in the literature to increase the specific capacitance value of the electrode materials. The electrode materials which have unique structural and electrochemical capacitance properties, such as high capacity and cyclic stability showed great supercapacitors performances. Recently, there are much new types of electrode materials were developed to play an important role in the capacitance behavior. In this review, we focused on the applications of various nanostructured electrode materials like carbon nanomaterials, metal oxides and conducting polymer towards highly efficient supercapacitors.
Applied Materials Today, 2017
Developments during the past decade, electrode materials have been tuned to the nanoscale and electrolytes have gained an active role enabling more efficient storage mechanism; hence increasing the performance of supercapacitors manifold. In porous carbon materials with sub-nanometer pores, the desolvation of the ions leads to surprisingly high capacitances. Oxide materials store charge by surface redox reactions which are the foremost to the pseudo capacitive effect. Understanding the physical mechanisms underlying charge storage in these materials is important for further development of supercapacitors. This brief overview focuses on the different types of recent developed (asymmetric, pseudo) supercapacitors, experimental strategies, fabrication procedure, and electrochemical properties based on nanomaterials which have been reported recently for their high-quality performance, the relevant quantitative modeling history and the future of supercapacitor research and development.
Hybrid solid state supercapacitors (HSSC’s) for high energy & power density: an overview
Engineered Science, 2020
A hybrid supercapacitor (HSC) is a supercapacitor (SC) based on two different electrode materials. One electrode is based on battery type faradic reactions (also known as extrinsic pseudocapacitor), and the other is based on the electric double-layer capacitor (non-faradic, known as intrinsic pseudocapacitor). In HSC, generally negative electrode material includes carbonbased materials (such as activated carbon, carbon nanotubes (CNT's) and graphene), metal oxides (such as V2O5 and MoO3), and their composites, while positive electrode materials are Ni, Co-based, mixed metal oxide, binary metal-based, layered double hydroxide (LDH) based materials etc. The synergy between high conductivity, specific surface area of negative electrode and architectures, heterostructures of positive electrodes is used to improve the overall electrochemical performances of the HSC's device. In this review, the basic charge storing mechanisms, a method for determination of capacitive and diffusion-controlled contribution, are explained. This review highlights the importance of hybrid solid-state supercapacitors (HSSC's) as energy storage devices. Finally, recent advancement in the HSSC fields is discussed and will guide future work in the HSSC field.
An Overview of Self-Grown Nanostructured Electrode Materials in Electrochemical Supercapacitors
Journal of the Korean Ceramic Society
Increasing demand for portable and wireless electronic devices with high power and energy densities has inspired global research to investigate, in lieu of scarce rare-earth and expensive ruthenium oxide-like materials, abundant, cheap, easily producible, and chemically stable electrode materials. Several potential electrode materials, including carbon-based materials, metal oxides, metal chalcogenides, layered metal double hydroxides, metal nitrides, metal phosphides, and metal chlorides with above requirements, have been effectively and efficiently applied in electrochemical supercapacitor energy storage devices. The synthesis of self-grown, or in-situ, nanostructured electrode materials using chemical processes is well-known, wherein the base material itself produces the required phase of the product with a unique morphology, high surface area, and moderate electrical conductivity. This comprehensive review provides in-depth information on the use of self-grown electrode materials of different morphologies in electrochemical supercapacitor applications. The present limitations and future prospects, from an industrial application perspectives, of self-grown electrode materials in enhancing energy storage capacity are briefly elaborated.
The role of nanomaterial for the design of supercapacitor
2012
The development of more efficient electrical storage is a pressing requirement to meet future societal and environmental needs. This demand for more sustainable, efficient energy storage has provoked a renewed scientific and commercial interest in advanced capacitor designs in which the suite of experimental techniques and ideas that comprise nanotechnology are playing a critical role. Capacitors can be charged and discharged quickly and are one of the primary building blocks of many types of electrical circuit, from microprocessors to large-sale power supplies, but usually have relatively low energy storage capability when compared with batteries. The application of nanostructured materials with bespoke morphologies and properties to electrochemical supercapacitors is being intensively studied in order to provide enhanced energy density without comprising their inherent high power density and excellent cyclability.
The role of nanomaterials in redox-based supercapacitors for next generation energy storage devices
Nanoscale, 2011
The development of more efficient electrical storage is a pressing requirement to meet future societal and environmental needs. This demand for more sustainable, efficient energy storage has provoked a renewed scientific and commercial interest in advanced capacitor designs in which the suite of experimental techniques and ideas that comprise nanotechnology are playing a critical role. Capacitors can be charged and discharged quickly and are one of the primary building blocks of many types of electrical circuit, from microprocessors to large-sale power supplies, but usually have relatively low energy storage capability when compared with batteries. The application of nanostructured materials with bespoke morphologies and properties to electrochemical supercapacitors is being intensively studied in order to provide enhanced energy density without comprising their inherent high power density and excellent cyclability. In particular, electrode materials that exploit physical adsorption or redox reactions of electrolyte ions are foreseen to bridge the performance disparity between batteries with high energy density and capacitors with high power density. In this review, we present some of the novel nanomaterial systems applied for electrochemical supercapacitors and show how material morphology, chemistry and physical properties are being tailored to provide enhanced electrochemical supercapacitor performance.