Carbon Cloth‐based Hybrid Materials as Flexible Electrochemical Supercapacitors

Abstract

Carbon cloths are the important materials composed of woven carbon fibres having the diameters in the range of 5–10 μm. These materials have been investigated for innumerable applications such as supercapacitors (symmetric and asymmetric), batteries, solar cells, and catalysis. They are found to be the best supports as supercapacitive materials by providing high surface area, conductivity and flexibility compared to much widely used substrate materials such as Ni foam and 1D Fe nanowires. High conductivity and surface area of carbon cloths enable ion diffusion and cause decrease in charge transfer resistance, resulting in an increase of specific capacitance of specific electrodes. Several supercapacitive metal oxides, chalcogenides, phosphides, MXenes, carbon nanotubes, graphene, and conductive polymers have been incorporated into carbon cloths to improve their energy storage activity. Further modification of carbon cloth surface via oxidation, doping and by the growth of different nanostructures is also helpful as it increases the electroactive surface area necessary for electrochemical interaction. The present review mainly focuses on the development of flexible supercapacitors using carbon cloth‐based substrate materials. Such flexible supercapacitors can be further utilized for an uninterrupted and steady power supply to wearable and portable electronic devices.

Optimization of the Carbon Content in Copper Phosphide–Carbon Composites for High Performance Sodium Secondary Batteries Using Ionic Liquids

“…For example, metal phosphides are known to provide high theoretical gravimetric capacities (∼1131 mAh g −1 for Sn 4 P 3 , ∼1292 mAh g −1 for CuP 2 , and ∼1493 mAh g −1 for NiP 3 ) owing to the large sodium intake through the formation of Na 3 P. However, large volume changes in the electrode during sodiation and desodiation are usually accompanied by pulverization of the active material, thereby resulting in capacity degradation . Although nano‐structuring and morphology optimization have been employed to address such issues, these techniques often involve low electrode mass loadings and difficult preparation methods, which are not suitable for practical purposes. In contrast, metal phosphide carbon composites have shown great potential in terms of their facile preparation and high performances as negative electrode materials .…”

Determination of Deformation in Mesh Composite Structure Under the Action of Compressive Loads

“…The determining factor in creating a PCM is the interaction and mutual influence of components at the fiber-matrix interface (binder). The higher the required properties of the PCM created for structural use, the more complex the set of requirements must be maintained when choosing the source components (Gattringer et al, 2019;Mishra et al, 2019;Hao et al, 2019). The final characteristics of carbon-epoxy composites are strongly influenced by the chemical structure of the epoxy resin, its properties, and curing conditions.…”

Electrochemical investigations for COVID-19 detection-A comparison with other viral detection methods

“…Most of the carbon-based nanomaterials have many advantageous properties such as higher electro-catalytic, adsorption bio-compatibility and fast electron transfer rate [125] . For sensor applications, carbon nanotubes and graphene have been investigated as these can be directly incorporated into a biological sensor following the simple drop casting, growing the material directly on the substrate, co-depositing with metal nanoparticles and then using them in field effect transistors [126] .…”