Construction of vacancies-enriched CuS/Fe2O3 with nano-heterojunctions as negative electrode for flexible solid-state supercapacitor

Synthesis of highly dispersed Nb2O5–graphene heterojunction composites using ethylene diamine tetraacetic acid and boron-functionalized graphene quantum dots for symmetrical flexible supercapacitors with ultrahigh energy density

“…Chronoamperometry and cyclic voltammetry were used for measuring the low voltage limit and high voltage limit of the safe voltage window of the n-Nb 2 O 5 -p-GQD-G electrode in 1.0 M Li 2 SO 4 aqueous electrolyte. 31 Fig. S11A (ESI†) presents the chronoamperometry curves for different low voltage limits.…”

Vacancy designed 2D materials for electrodes in energy storage devices

“…Such S-vacancy engineering has also been extended to other MSs for supercapacitor applications. Some of the more recently reported examples of electrodes based on metal sulphides are CoS, 78 MoS 2 , 186,187 CuS, 188 and Ni 3 S 4 . 189 Mixed metal sulphides (MMSs) have been considered as having good potential for supercapacitor electrodes due to their stable crystal structure as well as their multiple valencies.…”

“…Such S-vacancy engineering has also been extended to other MSs for supercapacitor applications. Some of the more recently reported examples of electrodes based on metal sulphides are CoS, 78 MoS 2 , 186,187 CuS, 188 and Ni 3 S 4 . 189…”

Nanotechnology in Advanced 2D and 3D Nanostructured Transition Metal Oxide Based Flexible Supercapacitors: A Review

“…Furthermore, the flexibility of the ASC device (CuS/Fe 2 O 3 //MnO 2 ) (Figure 17(c)) from the GCD measurements shows no obvious deterioration in specific capacitance after being bent, folded, and twisted (Figure 17(d). [180] In some cases, doping Fe 2 O 3 with metal ions is considered one of the best approaches to develop highperformance SCs because the metal ions create surface defects that improve electrical conductivity. According to Wei et al, Co-Fe 2 O 3 @CC was prepared by a hydrothermal-reaction technique.…”