Heterogeneous NiS/NiO multi-shelled hollow microspheres with enhanced electrochemical performances for hybrid-type asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9153-9160 ◽  
Author(s):  
Yaping Wang ◽  
Anqiang Pan ◽  
Yifang Zhang ◽  
Junrong Shi ◽  
Jiande Lin ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Hollow Microspheres ◽  
Electrochemical Performances ◽  
Hybrid Supercapacitor ◽  
Supercapacitor Electrode ◽  
Asymmetric Supercapacitors ◽  
Hybrid Type ◽  
Supercapacitor Electrode Materials

Heterogeneous NiS/NiO multi-shelled hollow microspheres exhibit excellent electrochemical performances as hybrid supercapacitor electrode materials.

Mn0.5Co2.5O4 nanofibers sandwiched in graphene sheets for efficient supercapacitor electrode materials

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 103923-103929 ◽  
Author(s):  
Jinzuan Wang ◽  
Jun Yang ◽  
Tao Huang ◽  
Wenyan Yin
Keyword(s):  
Electrical Conductivity ◽  
Active Sites ◽  
Electrode Materials ◽  
Graphene Sheets ◽  
Electrochemical Performances ◽  
Supercapacitor Electrode ◽  
Supercapacitor Electrode Materials

With unique sandwich-like structures, rich active sites, and boosted electrical conductivity, the Mn0.5Co2.5O4@G composite demonstrates superior electrochemical performances for supercapacitors.

NiCo2O4 nanowire based flexible electrode materials for asymmetric supercapacitors

2018 ◽  
Vol 42 (9) ◽  
pp. 7399-7406 ◽  
Author(s):  
Depeng Zhao ◽  
Fang Hu ◽  
Ahmad Umar ◽  
Xiang Wu
Keyword(s):  
Energy Storage ◽  
Rational Design ◽  
Electrode Materials ◽  
Energy Storage Devices ◽  
Supercapacitor Electrode ◽  
Flexible Electrode ◽  
Asymmetric Supercapacitors ◽  
Storage Devices ◽  
Supercapacitor Electrode Materials ◽  
Energy And Power Density

The rational design and construction of supercapacitor electrode materials with prominent energy and power density play an indispensable role for their potential application in energy storage devices.

A facile synthesis of Ni0.85Se@Cu2-xSe nanorods as high-performance supercapacitor electrode materials

2021 ◽  
Author(s):  
Shuling Liu ◽  
Rui Wang ◽  
Qiuting Wang ◽  
Qianhong Tian ◽  
Xian Cui
Keyword(s):  
Transition Metal ◽  
High Performance ◽  
Electrode Materials ◽  
Electrochemical Performances ◽  
Ni Foam ◽  
Facile Synthesis ◽  
Supercapacitor Electrode ◽  
Supercapacitor Electrode Materials ◽  
Metal Selenides

Transition-metal selenides is regarded as promising electrode materials due to their superior electrochemical performances for supercapacitors. In this study, nanorod-like hybrid of Ni0.85Se@Cu2-xSe on Ni-foam substrate is successfully synthesized via...

Trimetallic oxides/hydroxides as hybrid supercapacitor electrode materials: a review

2020 ◽  
Vol 8 (21) ◽  
pp. 10534-10570 ◽  
Author(s):  
Josué M. Gonçalves ◽  
Matheus I. da Silva ◽  
Henrique E. Toma ◽  
Lucio Angnes ◽  
Paulo R. Martins ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Electrode Materials ◽  
Core Shell ◽  
Hybrid Supercapacitor ◽  
Supercapacitor Electrode ◽  
Supercapacitor Electrode Materials ◽  
Double Hydroxide ◽  
Catalytic Effects

The main strategies to impart synergistic catalytic effects to trimetallic oxide/layered double hydroxide materials are discussed: (a) heteroatom incorporation, (b) the formation of nanocomposites, and (c) hierarchical core@shell nanostructuration.

Solution Effect on Synthesis of Polyaniline/rGO Composite for High-Performance Supercapacitor

NANO ◽  
2017 ◽  
Vol 12 (07) ◽  
pp. 1750088 ◽  
Author(s):  
Yuxi Tao ◽  
Ziang Liu ◽  
Xue-Zhi Song ◽  
Ming Bao ◽  
Zhenquan Tan
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
In Situ Polymerization ◽  
Control Sample ◽  
Reduction Process ◽  
Electrochemical Performances ◽  
Supercapacitor Electrode ◽  
Modified Method ◽  
Chemical Microenvironment ◽  
Supercapacitor Electrode Materials

Polyaniline (PANI)/graphene composites have been widely investigated as supercapacitor electrode materials. However, the electrochemical performances of PANI/graphene in laboratory were much lower than the theoretical value and still far from the actual needs because the microstructure of the composite was not very uniform and contained defects such as cracks, voids and dislocation. In this paper, PANI/graphene composites were synthesized by a modified method that involved a continuous in situ polymerization-hydrothermal reduction process. The chemical microenvironment of aniline was modified with the introduction of isopropanol as an adjusting agent for PANI polymerization, resulting in the fine microstructures of PANI/graphene composites and the better effect of [Formula: see text]-doping. The specific capacitance of these PANI/rGO composites is enhanced from 537.9 to 729.4[Formula: see text]F g1 in comparison with the control sample synthesized in aqueous solution. The cycle stability is also improved from 45.1% to 68.1% capacitance retention after 1000 charge–discharge cycles at a current density of 10[Formula: see text]A g[Formula: see text]. These intriguing features make it a suitable method to improve the electrochemical performance of PANI/graphene composites for electrochemical supercapacitors.

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