A Fractal, Flower Petal-like CuS-CuO/G-C3N4 Nanocomposite for High Efficiency Supercapacitors

Nanocomposite Electrodes for High-Performance Supercapacitors

S are a unique type of high-power electrochemical energy storage devices being developed for a wide range of applications, including consumer electronics, medical electronics, electrical utilities, transportation, and military defense systems. However, the energy and power densities, safety, and cycle life of currently available supercapacitors need to be significantly improved to satisfy the r...

Polypyrrole encapsulation on flower-like porous NiO for advanced high-performance supercapacitors.

Polypyrrole (PPy) encapsulated 3D flower-like NiO was prepared to investigate the role of PPy coating for high-performance electrodes. NiO@PPy showed a better electrochemical performance than pure NiO, and a "trade-off effect" between electrical conductivity and ion diffusion resistance was observed with different PPy coating thickness.

Carbon-based nanocomposite EDLC supercapacitors

EDLC cells based on activated carbon as host material electrodes were fabricated and tested. The MWCNT additive was added into the host material to form a nanocomposite and the effect of the MWCNTs concentration on improving the performance of the EDLC cells was explored. 1M TEABF4-PC solution was used as organic electrolyte. The nanocomposites functioned differently in improving the specific p...

Hierarchical, porous CuS microspheres integrated with carbon nanotubes for high-performance supercapacitors

Carbon nanotubes (CNTs) incorporated porous 3-dimensional (3D) CuS microspheres have been successfully synthesized via a simple refluxing method assisted by PVP. The composites are composed of flower-shaped CuS secondary microspheres, which in turn are assembled with primary nanosheets of 15-30 nm in thickness and fully integrated with CNT. The composites possess a large specific surface area o...

Graphitic Petal Electrodes for All-Solid-State Flexible Supercapacitors