Construction of hierarchical sugar gourd-like (Ni,Co)Se2/(Ni,Co)Se2/CC nanostructure with enhanced performance for hybrid supercapacitor

Extrinsic Pseudocapacitive NiSe/rGO/g-C3N4 Nanocomposite for High-Performance Hybrid Supercapacitors

“…Evidently, the addition of g-C 3 N 4 and rGO provides an improved capacitive nature to the electrode material. Moreover, at high scan rates, the capacitive charge storage mechanism dominates, which is in accordance with the earlier studies. − …”

Design and construction of hollow metal sulfide/selenide core–shell heterostructure arrays for hybrid supercapacitor

“…7f). Compared to the previously reported materials: Ni 3 S 2 @Co 9 S 8 //AC, 47 CoMoO 4 @Ni 3 S 2 //AC, 48 (Ni,Co)Se 2 /(Ni,Co)Se 2 /CC//AC, 49 Cu–Co–Se–P//AC, 50 Cu/CoNi–LDH//AC, 51 (Ni,Co)Se 2 /Ni(OH) 2 //AC 52 and Zn–Co–Ni–Se NA@NF//AC, 53 this study presents significant advantages. After 5000 cycles of charge and discharge, NiSe 2 @Co 9 S 8 //AC and Co 0.85 Se@Co 9 S 8 //AC demonstrate capacity retention rates of 87.5% and 89.5%, respectively.…”

MOF-Mediated Construction of NiCoMn-LDH Nanoflakes Assembled Co(OH)F Nanorods for Improved Supercapacitive Performance

“…Significantly, our Co(OH)F@NiCoMn-LDH//AC device delivers a remarkable power density of 75 mW cm −2 with an energy density of 0.363 mWh cm −2 , as well as a high energy density of 0.845 mWh cm −2 at the power density of 3.75 mW cm −2 . As summarized in Table S1 and Figure 5d, the superior capacitive performance of our device was demonstrated by comparing it to the recently reported asymmetric supercapacitive devices applying an AC electrode as the anode, such as Cu-Co-Se-P [46], NCS/NCS/CC [47], CoNi 300 /Cu 120 composite [48], NiCo-LDH [49], and NiCo 2 S 4 /CC-CN [50].…”