Enhanced electrochemical performance of flexible asymmetric supercapacitor based on novel nanostructured activated fullerene anchored zinc cobaltite

3D hierarchical cobalt vanadate nanosheet arrays on Ni foam coupled with redox additive for enhanced supercapacitor performance

“…The charge storage mechanism for Co 3 V 2 O 8 in KOH and RA electrolytes was analyzed using the following power law equation. 32,33 i = aν b where a , and b are constants, ν is the scan rate from CV measurement, and i is the current. The value of b is used to determine if the charge storage is diffusion-controlled or surface-controlled as follows.…”

Advances in Micro-/Mesopore Regulation Methods for Plant-Derived Carbon Materials

“…The multiple allotropes of carbon make it diverse in structure and versatile [ 1 ]. Novel carbon materials mainly include graphene [ 2 ], carbon nanotubes [ 3 ], porous carbon [ 4 ] and fullerene [ 5 ], derived from resins [ 6 ], gels [ 7 ], biomass materials [ 8 ], petroleum pitch [ 9 ], etc. In past decades, with the development of society, the demand of people for energy is increasing.…”

Surprising Hydrophobic Polymer Surface with a High Content of Hydrophilic Polar Groups

“…The surface wetting property (hydrophilicity/hydrophobicity) of a solid interface is crucial in interface chemistry, dominating the application in the areas of physical separation, − energy storage devices, pharmaceutical developments, , self-cleaning, immunosensors, and electrical insulation. , For centuries, various methods were used to tailor the surface wetting properties, − and corresponding theories had been established. − However, the underlying truth remains a mystery and is still attracting renowned scientists.…”

“…The hydrophobicity between the solid and water interface is believed to be connected to the physical structure on the solid surface. − Drawing on the hydrophobic structure of lotus leaves, nanoprotrusions are responsible for the hydrophobic structures on the surface. , Inspired by that, Zhu et al and Wang et al achieved superhydrophobic insulating coatings with high discharge thresholds by nanodoping. It is, however, well-known that the surface wetting properties of solids are influenced by not only the physical morphologies but also the chemical structures. − For simplicity and clarity, the static contact angle is used as the representation of the equilibrium state between the solid surface and wetting liquid. It is found that the contact angle is closely connected to the polar component on the solid surface. − Zhang et al used nanosecond-pulse dielectric barrier discharge treatment to enhance the hydrophobicity of poly­(methyl methacrylate) (PMMA) and found that the reduced polar component was the main cause for the increased contact angle .…”

“…It is, however, well-known that the surface wetting properties of solids are influenced by not only the physical morphologies but also the chemical structures. − For simplicity and clarity, the static contact angle is used as the representation of the equilibrium state between the solid surface and wetting liquid. It is found that the contact angle is closely connected to the polar component on the solid surface. − Zhang et al used nanosecond-pulse dielectric barrier discharge treatment to enhance the hydrophobicity of poly­(methyl methacrylate) (PMMA) and found that the reduced polar component was the main cause for the increased contact angle . Bormashenko et al found the hydrophilic and hydrophobic transition of polymer films is related to the content of surface polar groups and proposed that the water molecule can be attracted by the surface polar groups as a result of the dipole–dipole interaction between water molecules and polar groups in polymer chains .…”