Synthesis of porous NiCoS nanosheets with Al leaching on ordered mesoporous carbon for high-performance supercapacitors

Cobs Porous Carbon-Based Materials With High Energy And Excellent Cycle Stability For Supercapacitor Applications

“…This also implies that the materials have excellent charge-discharge character [24,34]. The exhibited symmetrical rectangular shapes showed better performance than most reported results in the literature [11,25,30,31]. The CVs after stability demonstrated less or no exponential for the faradaic process, indicating no pseudocapacitance after holding the electrode materials at the high potential for a total of 130 h, as shown in Figure S3(a-f) (supplementary information) at a scan rate of 5 mV/s.…”

“…Sample ANN7 exhibited a slight discharge hump near 0.8 V due to some redox pseudocapacitance of the functional groups. All the CV curves exhibited a quasi-rectangular-like shape throughout the scanning range showing the excellent performance of EDLC [25,30]. The GCD curves for all the materials, as shown in Fig.…”

Overview of transition metal-based composite materials for supercapacitor electrodes

“…This journal is © The Royal Society of Chemistry 2020 suldes show superior electrochemical characteristics over their oxide counterparts and exhibit enhanced electrical conductivity by two orders of magnitude and a greatly improved redox reaction. 3,11,12,41,[84][85][86][87] 3.1. Binary transition metal suldes (M x N y S z )…”

In situ hydrothermal synthesis of nickel cobalt sulfide nanoparticles embedded on nitrogen and sulfur dual doped graphene for a high performance supercapacitor electrode

“…This ordered mesoporous carbon built conductive network with NiCoS, yielding the surprising electrochemical performance with the specic supercapacitance of 1757 F g À1 at 1 A g À1 . 24 Nevertheless, even though there are many reports mentioned an excellent performance of metal sulde pseudocapacitors in term of the high electrical conductivity and high capacitance values, but their structure stability of nickel-cobalt sulde have been limited in ion diffusion, resulting in lack of reversible redox reaction at high current densities. 16,25 In order to solve this issue, carbonaceous materials have been introduced as host materials, expecting to increase active sites and electrochemical stability.…”