Carbon-based polymer nanocomposite for high-performance energy storage applications

In recent years, numerous discoveries and investigations have been remarked for the development of carbon-based polymer nanocomposites. Carbon-based materials and their composites hold encouraging employment in a broad array of fields, for example, energy storage devices, fuel cells, membranes sensors, actuators, and electromagnetic shielding. Carbon and its derivatives exhibit some remarkable features such as high conductivity, high surface area, excellent chemical endurance, and good mechanical durability. On the other hand, characteristics such as docility, lower price, and high environmental resistance are some of the unique properties of conducting polymers (CPs). To enhance the properties and performance, polymeric electrode materials can be modified suitably by metal oxides and carbon materials resulting in a composite that helps in the collection and accumulation of charges due to large surface area. The carbon-polymer nanocomposites assist in overcoming the difficulties arising in achieving the high performance of polymeric compounds and deliver high-performance composites that can be used in electrochemical energy storage devices. Carbon-based polymer nanocomposites have both advantages and disadvantages, so in this review, attempts are made to understand their synergistic behavior and resulting performance. The three electrochemical energy storage systems and the type of electrode materials used for them have been studied here in this article and some aspects for example morphology, exterior area, temperature, and approaches have been observed to influence the activity of electrochemical methods. This review article evaluates and compiles reported data to present a significant and extensive summary of the state of the art

Ionic liquid-based polymer nanocomposites for sensors, energy, biomedicine and environmental applications:Roadmap to the future

Current interest toward ionic liquids (ILs) stems from some of their novel characteristics, like low vapor pressure, thermal stability, and nonflammability, integrated through high ionic conductivity and broad range of electrochemical strength. Nowadays, ionic liquids represent a new category of chemical‐based compounds for developing superior and multifunctional substances with potential in several fields. ILs can be used in solvents such as salt electrolyte and additional materials. By adding functional physiochemical characteristics, a variety of IL‐based electrolytes can also be used for energy storage purposes. It is hoped that the present review will supply guidance for future research focused on IL‐based polymer nanocomposites electrolytes for sensors, high performance, biomedicine, and environmental applications. Additionally, a comprehensive overview about the polymer‐based composites’ ILs components, including a classification of the types of polymer matrix available is provided in this review. More focus is placed upon ILs‐based polymeric nanocomposites used in multiple applications such as electrochemical biosensors, energy‐related materials, biomedicine, actuators, environmental, and the aviation and aerospace industries. At last, existing challenges and prospects in this field are discussed and concluding remarks are provided

Performance of bismuth based materials for electrochemical energy storage devices

Abstract: The efficient storage of electrical energy produced from renewable sources of energy is a crucial challenge and has attracted immense interests of the researchers. Electrochemical storage of the energy is proved to be an efficient and effective solution that suggests battery, supercapacitors and fuel cells. The lithium-ion battery is one of the most prominent existing solutions in the energy storage market which is being used in the technology devices. A supercapacitor is another alternative that evinces the potential to emulate battery technology in the upcoming years. To achieve this decisive task, electrode materials having high energy density and electrochemical stability are needed to be explored that should be environment-friendly and economical to be used. Carbonaceous materials, metal oxides, polymers, and their composites are being used for this purpose having a particle size in the nano range. Nanomaterials are proved to be an active candidate due to high surface area and a large number of active sites. Here, we synthesized and investigated bismuth nanomaterials that showed quite high energy density, power density and stability and can be used as electrode materials for supercapacitor applications. The thesis mainly focusses on bismuth-based materials, their synthesis and more concerned about the study of supercapacitive applications via electrochemical techniques. A facile synthesis method of nanoparticles at ambient conditions stabilized by organic matrix has been presented in this report...Ph.D. (Chemistry

An Aniline‐Complexed Bismuth Tungstate Nanocomposite Anchored on Carbon Black as an Electrode Material for Supercapacitor Applications

The development of efficient electrode materials for supercapacitors has been a topic of extensive research. In this study, a novel electrode material composed of carbon black anchored bismuth‐tungstate‐aniline complex (Bi2(WO4)3/Aniline/CB) (BTACB) nanocomposite was synthesized for supercapacitor applications. The BTACB nanocomposite exhibited excellent electrochemical properties with a specific capacitance of 306 F/g at a current density of 1 A/g and excellent cycling stability. The improved electrochemical performance of the BTACB electrode material is attributed to the synergistic effects of the bismuth‐tungstate and aniline complex, and the conductive carbon black, which provides high surface area and good conductivity. These findings suggest that the carbon black anchored bismuth‐tungstate‐aniline complexed electrode material is a promising candidate for high‐performance supercapacitors

Organic Matrix Stabilized Ultra‐Fine Bismuth Oxide Particles for Electrochemical Energy Storage Application

Follow the DOI link at the top of the record to access the full-text on the publisher's web-siteThe synthesis of an organic‐inorganic supramolecular hybrid system has been reported, using a wet‐chemical synthesis method, where the Bi2O3 nanoparticles are dispersed within the organic matrix. The XRD analysis showed the formation of crystalline Bi2O3. The XPS and Raman spectra analysis also confirmed the formation of Bi2O3. In this work, the organic molecule supported nanosized Bi2O3 has been used as an electrode material for supercapacitor application in presence of the aqueous solution of alkaline electrolyte (1.0 mol dm−3 of KOH) and exhibited a specific capacitance 407 F.g−1 along with the energy density value of 113 W.h.kg−1 at 1 A.g−1. The supramolecular system exhibited a long‐term stability by retaining 89% of the initial specific capacitance value after 500 cycles at the current density of 5 A.g−1.1. Faculty of Science and the Global Excellence and Stature programme, University of Johannesburg 2. National Research FoundationChemistr

Organic Matrix Stabilized Ultra‐Fine Bismuth Oxide Particles for Electrochemical Energy Storage Application

Follow the DOI link at the top of this record to access the full-text on the publisher's web site.The synthesis of an organic‐inorganic supramolecular hybrid system has been reported, using a wet‐chemical synthesis method, where the Bi2O3 nanoparticles are dispersed within the organic matrix. The XRD analysis showed the formation of crystalline Bi2O3. The XPS and Raman spectra analysis also confirmed the formation of Bi2O3. In this work, the organic molecule supported nanosized Bi2O3 has been used as an electrode material for supercapacitor application in presence of the aqueous solution of alkaline electrolyte (1.0 mol dm−3 of KOH) and exhibited a specific capacitance 407 F.g−1 along with the energy density value of 113 W.h.kg−1 at 1 A.g−1. The supramolecular system exhibited a long‐term stability by retaining 89% of the initial specific capacitance value after 500 cycles at the current density of 5 A.g−1.Faulty of Science Global Excellence and Stature Programme NRFChemistr