A multi-level structure bio-carbon composite with polyaniline for high performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (16) ◽  
pp. 12230-12236 ◽  
Author(s):  
Guofu Ma ◽  
Haiping Wang ◽  
Kanjun Sun ◽  
Hui Peng ◽  
Yajuan Wu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Electrode Materials ◽  
Synergistic Effects ◽  
Level Structure ◽  
Carbon Composite ◽  
Multi Level

The electrochemical performance of electrode materials can be enhanced by the synergistic effects of polyaniline and multi-level structured bio-carbon.

Self-assembly synthesis of nitrogen-doped mesoporous carbons used as high-performance electrode materials in lithium-ion batteries and supercapacitors

2017 ◽  
Vol 41 (21) ◽  
pp. 12901-12909 ◽  
Author(s):  
Chunfeng Shao ◽  
Ziqiang Wang ◽  
Errui Wang ◽  
Shujun Qiu ◽  
Hailiang Chu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Self Assembly ◽  
High Performance ◽  
Electrode Materials ◽  
Lithium Ion ◽  
Mesoporous Carbons ◽  
Nitrogen Doped ◽  
First Time ◽  
Enhanced Electrochemical Performance

Guanine was, for the first time, used as a nitrogen source during the synthesis of nitrogen-doped porous carbons (NMCs) with enhanced electrochemical performance.

Highly ordered nanoscale phosphomolybdate-grafted polyaniline/metal hybrid layered structures prepared via secondary sputtering phenomenon as high-performance pseudocapacitor electrodes

2021 ◽  
Author(s):  
Eun Seop Yoon ◽  
Bong Gill Choi ◽  
Hwan-Jin Jeon
Keyword(s):  
Electron Transfer ◽  
Aspect Ratio ◽  
Electrochemical Performance ◽  
High Aspect Ratio ◽  
High Performance ◽  
Electrode Materials ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
High Rate ◽  
Large Area

Abstract The development of energy storage electrode materials is important for enhancing the electrochemical performance of supercapacitors. Despite extensive research on improving electrochemical performance with polymer-based materials, electrode materials with micro/nanostructures are needed for fast and efficient ion and electron transfer. In this work, highly ordered phosphomolybdate (PMoO)-grafted polyaniline (PMoO-PAI) deposited onto Au hole-cylinder nanopillar arrays is developed for high-performance pseudocapacitors. The three-dimensional nanostructured arrays are easily fabricated by secondary sputtering lithography, which has recently gained attention and features a high resolution of 10 nm, a high aspect ratio greater than 20, excellent uniformity/accuracy/precision, and compatibility with large area substrates. These 10nm scale Au nanostructures with a high aspect ratio of ~30 on Au substrates facilitate efficient ion and electron transfer. The resultant PMoO-PAI electrode exhibits outstanding electrochemical performance, including a high specific capacitance of 114 mF/cm2, a high-rate capability of 88%, and excellent long-term stability.

Bioinspired tailoring of nanoarchitectured nickel sulfide@nickel permeated carbon composite as highly durable and redox chemistry enabled battery-type electrode for hybrid supercapacitors

2021 ◽  
Author(s):  
Mohan Reddy Pallavolu ◽  
Ramesh Reddy N ◽  
Hemachandra Rao Goli ◽  
Arghya Narayan Banerjee ◽  
G. Rajasekhara Reddy ◽  
...  
Keyword(s):  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Cost Effective ◽  
Carbon Composite ◽  
Metal Chalcogenides ◽  
Energy Storage Devices ◽  
Active Electrode ◽  
Storage Devices ◽  
Hybrid Supercapacitors

Rational design of highly conductive and redox-active electrode materials composed of metal chalcogenides and carbon composites has attracted promising attention for the development of high-performance energy storage devices. Herein, cost-effective...

Rational Design of Co3O4 Nano-Flowers for High Performance Supercapacitors

2020 ◽  
Vol 15 (1) ◽  
pp. 147-153
Author(s):  
Yucai Li ◽  
Yan Zhao ◽  
Dong Zhang ◽  
Shiwei Song ◽  
Jian Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Storage Device ◽  
Facile Hydrothermal Method ◽  
Promising Application

Electrochemical performance of the electrode materials is seriously dependent on the structure and morphology of the electrode material. In this work, the nanoflower-like Co3O4 samples are successfully prepared on Ni foam via a facile hydrothermal method. The as-fabricated Co3O4 samples exhibit superior electrochemical performance with a high specific capacitance of 382.6 C g-1 at 1 A g-1 and excellent capacitance retention. In addition, the as-fabricated device presents a high energy density of 23.6 Wh kg-1 at a power density of 508.6 W kg-1 and excellent cycle stability with a capacitance retention of 81.2% after 10000 cycles, indicating a promising application as electrodes for energy storage device.

scholarly journals Hierarchical NiS/N-doped carbon composite hollow spheres with excellent supercapacitor performance

2017 ◽  
Vol 5 (40) ◽  
pp. 21257-21265 ◽  
Author(s):  
Tao Liu ◽  
Chuanjia Jiang ◽  
Bei Cheng ◽  
Wei You ◽  
Jiaguo Yu
Keyword(s):  
Electrochemical Performance ◽  
Electrode Materials ◽  
Hollow Spheres ◽  
Carbon Composite ◽  
Carbon Spheres ◽  
Excellent Electrochemical Performance ◽  
Supercapacitor Performance ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

The synthesized NiS nanosheets anchored on N-doped hollow carbon spheres (NHCSs) exhibit excellent electrochemical performance as electrode materials for supercapacitors.

Binary zinc–cobalt metal–organic framework derived mesoporous ZnCo2O4@NC polyhedron as a high-performance lithium-ion battery anode

2020 ◽  
Vol 49 (40) ◽  
pp. 14237-14242 ◽  
Author(s):  
Rui Sun ◽  
Zhaoxia Qin ◽  
Zhiyong Li ◽  
Haosen Fan ◽  
Shengjun Lu
Keyword(s):  
Electrochemical Performance ◽  
Metal Oxides ◽  
Transition Metal Oxides ◽  
High Performance ◽  
Synergistic Effects ◽  
Metal Organic Framework ◽  
Lithium Ion ◽  
Cobalt Metal ◽  
Metal Organic ◽  
Battery Anode

Ternary transition metal oxides have attracted increasing attention due to their many merits, and will enhance electrochemical performance via the synergistic effects of the different single metal oxides.

Rattle-type NiCo2O4–carbon composite microspheres as electrode materials for high-performance supercapacitors

2015 ◽  
Vol 39 (9) ◽  
pp. 7495-7502 ◽  
Author(s):  
Yongchao Ma ◽  
Haiyan Jiang ◽  
Qingzhi Liu ◽  
Wukui Kang ◽  
Jinsheng Shi
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Carbon Composite ◽  
Template Method ◽  
Composite Microspheres ◽  
Self Assembled

Rattle-type NiCo2O4–carbon composite microspheres with a self-assembled shell were synthesized by a template method, which exhibited superior capacitive performances.

A reduced graphene oxide-encapsulated phosphorus/carbon composite as a promising anode material for high-performance sodium-ion batteries

2017 ◽  
Vol 5 (7) ◽  
pp. 3683-3690 ◽  
Author(s):  
Gi-Hyeok Lee ◽  
Mi Ru Jo ◽  
Kai Zhang ◽  
Yong-Mook Kang
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Reduced Graphene Oxide ◽  
Anode Material ◽  
High Performance ◽  
Carbon Composite ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Reduced Graphene

Electrochemical performance of phosphorus/carbon composite was unprecedentedly enhanced by reduced graphene oxide (rGO) encapsulation.

scholarly journals Waxberry-Like Nanosphere Li4Mn5O12 as High Performance Electrode Materials for Supercapacitors

2018 ◽  
Vol 8 (3) ◽  
pp. 32
Author(s):  
Peiyuan Ji ◽  
Yi Xi ◽  
Chengshuang Zhang ◽  
Chuanshen Wang ◽  
Chenguo Hu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Electrode Materials ◽  
Three Dimensional ◽  
Lithium Ion ◽  
Diffusion Path ◽  
Electrochemical Performances ◽  
Wet Chemistry ◽  
First Time ◽  
Charge Discharge

Porous materials have superior electrochemical performance owing to its their structure, which could increase the specific and contact area with the electrode. The spinel Li4Mn5O12 has a three-dimensional tunnel structure for a better diffusion path, which has the advantage of lithium ion insertion and extraction in the framework. However, multi-space spherical materials with single morphologies are rarely studied. In this work, waxberry-like and raspberry-like nanospheres for Li4Mn5O12 have been fabricated by the wet chemistry and solid-state methods for the first time. The diameter of a single waxberry- and raspberry-like nanosphere is about 1 μm and 600 nm, respectively. The specific capacitance of Li4Mn5O12 was 535 mF cm−2 and 147.25 F g−1 at the scan rate of 2 mV s−1, and the energy density was 110.7 Wh kg−1, remaining at 70% after 5000th charge-discharge cycles. Compared with raspberry-like nanosphere Li4Mn5O12, the waxberry-like nanoporous spinel Li4Mn5O12 shows the better electrochemical performance and stability; furthermore, these electrochemical performances have been improved greatly compared to the previous studies. All these results indicate that the waxberry-like nanoporous spinel Li4Mn5O12 could provide a potential application in high performance supercapacitors.

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