Template synthesis of hierarchical mesoporous δ-MnO 2 hollow microspheres as electrode material for high-performance symmetric supercapacitor

2018 ◽  
Vol 264 ◽  
pp. 1-11 ◽  
Author(s):  
Wei Xiao ◽  
Wenjie Zhou ◽  
Hong Yu ◽  
Yong Pu ◽  
Yanhua Zhang ◽  
...  
Keyword(s):  
Template Synthesis ◽  
Electrode Material ◽  
High Performance ◽  
Hollow Microspheres ◽  
Symmetric Supercapacitor

Mn incorporated MoS2 nanoflowers: A high performance electrode material for symmetric supercapacitor

2020 ◽  
Vol 338 ◽  
pp. 135815 ◽  
Author(s):  
Shib Shankar Singha ◽  
Siddheswar Rudra ◽  
Suchanda Mondal ◽  
Mukul Pradhan ◽  
Arpan Kumar Nayak ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Symmetric Supercapacitor

Multi-doped interconnected carbon nanospheres for high-performance supercapacitor

2021 ◽  
pp. 1-20
Author(s):  
Shiying Lin ◽  
Lanlan Mo ◽  
Tao Lyu ◽  
Feijun Wang
Keyword(s):  
Electrochemical Performance ◽  
Electrode Material ◽  
High Performance ◽  
High Current Density ◽  
High Energy ◽  
High Energy Density ◽  
Carbon Nanospheres ◽  
Sodium Lignosulfonate ◽  
Symmetric Supercapacitor ◽  
Very High

Abstract Heteroatom doping is an effective modification to improve electrochemical performance of carbon materials as electrodes in storage devices and multi-doping works better because of synergistic effect. In this report, a N/O/S multi-doped carbon nanospheres (SLS/PANI-700) are prepared from crosslinking hydrogel beads of polyaniline and sodium lignosulfonate. The addition of sodium lignosulfonate significantly improve the electrochemical performance of PANI-based carbon by changing micromorphology, building interconnected network and offering diverse doping. SLS/PANI-700 has ultrahigh specific surface area of 2861 m2 g−1, well-developed hierarchically porous structure, interconnected conducting carbon network and high N and O concentration. Take these advantages, it delivers very high capacitance of 487.7 F g−1 at 1 A g−1, a superior rate retention with capacitance of 373.6 F g−1 at a high current density of 20 A g−1 as electrode material. The assembled symmetric supercapacitor device exhibits a very high energy density of 43.68 Wh kg−1 at 488.98 W kg−1 and keeps 21.18 Wh kg−1 under a high power density of 8664.54 W kg−1. Based on these properties, SLS/PANI-700 possesses a great promising potential as electrode material for advanced supercapacitor.

Facile synthesis of graphene-Zn3V2O8 nanocomposite as a high performance electrode material for symmetric supercapacitor

2019 ◽  
Vol 784 ◽  
pp. 847-858 ◽  
Author(s):  
Wei Hau Low ◽  
Poi Sim Khiew ◽  
Siew Shee Lim ◽  
Chiu Wee Siong ◽  
Chin Hua Chia ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Facile Synthesis ◽  
Symmetric Supercapacitor

scholarly journals Porous Activated Carbon Binder-free Scleria sumatrensis Stem-Based for Supercapacitor Application

2021 ◽  
Vol 2049 (1) ◽  
pp. 012008
Author(s):  
Erman Taer ◽  
Muhammad Ali Akbar Tsalis ◽  
Apriwandi ◽  
Novi Yanti ◽  
Awitdrus ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrode Material ◽  
High Performance ◽  
Electrode System ◽  
Energy Storage Devices ◽  
Supercapacitor Application ◽  
Carbon Biomass ◽  
Symmetric Supercapacitor ◽  
Binder Free ◽  
Porous Activated Carbon

Abstract Green, sustainable and effective development technique to obtain high porous activated carbon biomass based is important to boosting supercapacitor performance with environmentally friendly effect as conversion system and energy storage devices. We reported porous activated carbon binder-free Scleria sumatrensis stem-based as electrode material high performance of symmetric supercapacitor. Precursor biomass of Scleria sumatrensis stem was converted into porous carbon through simple ZnCl2 impregnated with different concentration of 0.4M, 0.5M, 0.6M, and 0.7M at high-temperature phyrolysis. All samples confirmed good amorphous carbon with small amounts of oxidative compounds. In two-electrode system, the optimum sample of ACSS0.6 significantly boosting the specific capacitance as high as 142.62 F g−1 at scan rate of 1 mV s−1. Furthermore, the optimum energy density was found to be 19.80 Wh kg−1 at a maximum power density of 71.35 W kg−1 in 1 M H2SO4 aqueous electrolyte. These results confirm that the porous activated carbon binder-free Scleria sumatrensis stem-based through simple ZnCl2 impregnated as an electrode material to boosting the electrochemical behavior of supercapacitors.

Template synthesis and characterization of nanostructured hierarchical mesoporous ribbon-like NiO as high performance electrode material for supercapacitor

2015 ◽  
Vol 158 ◽  
pp. 96-104 ◽  
Author(s):  
Mingming Yao ◽  
Zhonghua Hu ◽  
Zijie Xu ◽  
Yafei Liu ◽  
Peipei Liu ◽  
...  
Keyword(s):  
Template Synthesis ◽  
Electrode Material ◽  
High Performance ◽  
Synthesis And Characterization

Rational design of self-supported Ni3S2 nanoparticles as a battery type electrode material for high-voltage (1.8 V) symmetric supercapacitor applications

CrystEngComm ◽  
2021 ◽  
Author(s):  
Muhammad Sajjad ◽  
Yaqoob Khan
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
High Voltage ◽  
Electrode Material ◽  
High Performance ◽  
Rational Design ◽  
Rate Capability ◽  
Excellent Electrochemical Performance ◽  
Symmetric Supercapacitor ◽  
Supercapacitor Applications

We developed a high performance SSC device with excellent electrochemical performance in terms of specific capacitance, rate capability, energy density and power density which surpasses most of the reports.

Synthesis of self-templated urchin-like Ni2Co(CO3)2(OH)2 hollow microspheres for high-performance hybrid supercapacitor electrodes

2019 ◽  
Vol 327 ◽  
pp. 134970 ◽  
Author(s):  
Lu Liu ◽  
Haoming Yu ◽  
Anru Liu ◽  
Yuhan Xu ◽  
Bo Feng ◽  
...  
Keyword(s):  
High Performance ◽  
Hollow Microspheres ◽  
Hybrid Supercapacitor
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