S, N co-doped porous carbon materials for high performance supercapacitor

Micro/Mesoporous Carbon Nanospheres with Homogeneously N, S, P-Tridoped Skeletons as Electrodes for High-Performance Supercapacitors

“…Doping S atoms in the carbon structure helps tune the defect, distortion, and charge density of the carbon skeleton . According to the previous research, the multiheteroatom codoping in the porous carbon framework can generate various synergistic effects for effectively tuning the features of electrodes, promoting the electrochemical performance. ,, …”

“…The calculated specific capacitance values are plotted as a function of scan rates in Figure c. For NSPC-900, the high specific capacitance of 396 F g –1 at 2 mV s –1 indicates that it is superior to the commercial active carbon (AC) materials (196 F g –1 ) and other similar carbon electrodes, such as N-doped porous carbon (200.5 F g –1 ), freestanding N, P-doped carbon (318 F g –1 ), N/S codoped porous carbon (235.3 F g –1 ), and PVDF-derived hierarchical porous carbon (127 F g –1 ) . Although increasing the scan rate causes a slow decline in the specific capacitance values, a considerable value of 238 F g –1 can be obtained even at 100 mV s –1 , implying a capacitance retention of 60%.…”

“…11 According to the previous research, the multiheteroatom codoping in the porous carbon framework can generate various synergistic effects for effectively tuning the features of electrodes, promoting the electrochemical performance. 5,19,22 The electrochemical performances of carbon electrodes were studied within a three-electrode system. Figure 5a compares the cyclic voltammetry (CV) behaviors of NSPC-900, NSPC-800, and NSPC-700 at 2 mV s −1 .…”

“…18 For instance, a N/S codoped porous carbon material is prepared by a one-step carbonization-activation method, showing a specific capacity of 235.3 F g −1 . 19 By the means of a combined templating/ activating method, the obtained freestanding N,P-doped carbon electrode delivers a high capacitance of 318 F g −1 . 5 Despite considerable progress to date, exploring a novel, efficient, environmentally friendly, and time-saving preparation method for multiheteroatom doped carbon materials still attracts wide research interest.…”

3D Porous Biomass Derived Carbon Composite Modified with (Ni,Co)Se Particles for High‐Performance Supercapacitors

“…[6] Supercapacitors, with many unique properties such as rapid charging/discharging ability, long cycle life and outstanding power density have attracted more and more attention. [7,8] Because of its outstanding structural stability and flexible surface modification, carbon and its composites are widely studied as electrode materials for supercapacitors. [9] However, carbon based materials such as carbon fibers, [10,11] graphene [12] or MOF-derived activated carbon [13,14] are all expensive and essentially derived from fossil sources.…”