RGO and CNTs synergistically modified mixed-phase nickel sulfide nanohybrids with abundant redox-active sites for high-performance hybrid supercapacitors

Zhang，Weiyang1; Cai，Qingbin2; Li，Xiaona1; Kang，Hongwei3; Zhang，Shouren1; Yang，Baocheng1; Li，Zhikun1

2023-12-25

10.1016/j.est.2023.109431

Journal of Energy Storage   影响因子和分区

2352-152X

Hybrid supercapacitors (HSCs) integrating high energy density and power density have great prospects for applications in new high-performance energy storage and conversion devices. Herein, a novel reduced graphene oxide (RGO) and carbon nanotubes (CNTs) synergistically modified mixed-phase nickel sulfide (NiS/NiS) nanohybrids (NSRCs) were successfully designed and synthesized by a facile one-step solvothermal method. Benefiting from the high conductivity and high specific surface area of carbon materials and the high specific capacity of nickel sulfide, as well as the stable nanostructures constructed by the synergistic effect of multiple components, the synthesized novel NSRCs nanohybrids exhibit impressive electrochemical performances, such as high specific capacity of 178.2 mAh g (1604.1 F g) at 0.6 A g, excellent rate capability (57.3 % at 20 A g). Furthermore, the assembled hybrid supercapacitors (NSRC-24//AC HSC) with optimal NSRC-24 electrode and activated carbon (AC) electrode imparted a high energy density of 44.2 Wh kg at a power density of 359.2 W kg and excellent cycling stability (98.1 % capacity retention after 12,000 cycles at 5 A g). Thus, the synthesized novel NSRCs nanohybrids are highly promising candidates as advanced electrode materials for aqueous high-performance energy storage devices.

High energy density Hybrid supercapacitors Mixed-phase Nickel sulfide Synergistic modification

SCI ; EI

英语

其他

WOS:001104182200001

20234414996225

Activated carbon ; Carbon nanotubes ; Electrodes ; Energy storage ; Graphene ; Nickel sulfates ; Redox reactions ; Supercapacitor

Energy Storage:525.7 ; Electric Components:704.1 ; Nanotechnology:761 ; Chemical Reactions:802.2 ; Chemical Products Generally:804 ; Inorganic Compounds:804.2 ; Crystalline Solids:933.1

2-s2.0-85175264915

Scopus

1.Henan Key Laboratory of Nanocomposite and Application,Zhengzhou City Key Laboratory of Supercapacitor,Institute of Nanostructured Functional Materials,Huanghe Science and Technology College,Zhengzhou,450006,China
2.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.School of Chemistry and Materials Engineering,Engineering Research Center of Biomass Conversion and Pollution Prevention of Anhui Educational Institutions,Fuyang Normal University,Fuyang,236037,China

Zhang，Weiyang,Cai，Qingbin,Li，Xiaona,et al. RGO and CNTs synergistically modified mixed-phase nickel sulfide nanohybrids with abundant redox-active sites for high-performance hybrid supercapacitors[J]. Journal of Energy Storage,2023,74.

Zhang，Weiyang.,Cai，Qingbin.,Li，Xiaona.,Kang，Hongwei.,Zhang，Shouren.,...&Li，Zhikun.(2023).RGO and CNTs synergistically modified mixed-phase nickel sulfide nanohybrids with abundant redox-active sites for high-performance hybrid supercapacitors.Journal of Energy Storage,74.

Zhang，Weiyang,et al."RGO and CNTs synergistically modified mixed-phase nickel sulfide nanohybrids with abundant redox-active sites for high-performance hybrid supercapacitors".Journal of Energy Storage 74(2023).