Fabrication of nanosheet-assembled hollow copper–nickel phosphide spheres embedded in reduced graphene oxide texture for hybrid supercapacitors

Abstract

Thanks to their metalloid characteristics with high electrical conductivity, transition metal phosphides (TMPs) have demanded considerable research attention as prospective cathodes for hybrid supercapacitors. Unfortunately, they usually disclose low rate...

Engineering raspberry-like CuCo2S4@ZnS hollow particles encapsulated with reduced graphene oxide for hybrid supercapacitors

“…The existing rGO skeleton around RCCS-ZSH8 not only served as an excellent conductive film to boost the conductivity of the sample but also acted as a protective layer to inhibit the aggregation of the particles. 36,37…”

“…35 These drawbacks could be addressed using different approaches including, but not limited to (1) surface coating electrode material with appropriate active materials to enhance the redox reaction and improve the electrical conductivity, 10 (2) fabrication and structural design of electrode materials that could provide higher electroactive sites, 36,37 and (3) designing complex hollow nanoarchitectures encapsulated within conductive carbonaceous materials. 8,36,37…”

“…Among carbon materials, graphene with good conductivity, robust structural stability, and large surface area is a favorable candidate. 36,37 Previous studies have proven that the graphene network acts as the protective skeleton to enhance the structural durability of TMSs and inhibit the aggregation of particles, resulting in excellent longevity. 8,36,37…”

“…36,37 Previous studies have proven that the graphene network acts as the protective skeleton to enhance the structural durability of TMSs and inhibit the aggregation of particles, resulting in excellent longevity. 8,36,37…”

Metal–organic framework-derived hollow Co9S8 nanotube arrays coupled with porous FeCo–P nanosheets as an efficient electrode material for hybrid supercapacitors

“…[24][25][26] Beneting from the enhanced conductivity, improved reactivity, and the synergy between several metal ions, mixed metal phosphides (MMPs) exhibit signicantly improved supercapacitive features compared with single MPs. 27,28 For example, Song et al synthesized Ni x Co 3−x P y nanostructures, which demonstrated a capacitance of 1969F g −1 at 1 A g −1 and excellent durability of 96% aer 10 000 cycles. 29 Also, Lei et al fabricated ZnNiCo-P nanoarrays with a good capacitance of 1111 C g −1 at 10 A g −1 and superior durability.…”