Mesoporous NiCo2O4 nanospheres with a high specific surface area as electrode materials for high-performance supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (72) ◽  
pp. 67839-67848 ◽  
Author(s):  
M. J. Pang ◽  
S. Jiang ◽  
G. H. Long ◽  
Y. Ji ◽  
W. Han ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
High Specific Surface Area ◽  
Nickel Cobaltite ◽  
High Theoretical Capacity ◽  
Mesoporous Nico2o4 ◽  
Promising Electrode Material

Ternary nickel cobaltite has attracted more and more attention as a promising electrode material for high performance supercapacitors (SCs) due to its high theoretical capacity, unique crystal structure and excellent electronic conductivity.

Ti3SiC2/Carbon Nanofibers Fabricated by Electrospinning as Electrode Material for High-Performance Supercapacitors

2020 ◽  
Vol 20 (10) ◽  
pp. 6441-6449
Author(s):  
Weikang Yan ◽  
Jianqiang Bi ◽  
Weili Wang ◽  
Xiaoning Sun ◽  
Rui Liu ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Rate Capability ◽  
Carbon Composite ◽  
High Specific Surface Area ◽  
High Rate ◽  
Electrochemical Tests ◽  
Superior Electrochemical Properties

As an Mn+1AXn phase ternary layered carbide, Ti3SiC2 possesses the advantages of both excellent stability and high electrical conductivity, which are considered to be promising electrode materials for supercapacitors. Ti3SiC2/Carbon nanofiber composites with one-dimensional nanostructures were successfully synthesized via electrospinning. Systematic electrochemical tests showed that the Ti3SiC2/Carbon composite possesses a large specific capacitance of 133.1 F/g at the current density of 1 A/g, high rate capability of 113.7% capacitance retention from 1 to 10 A/g, and low resistance of 1.07 Ω. After assembling the asymmetrical supercapacitor, Ti3SiC2/Carbon provides the energy density of 7.02 Wh/kg at the power density of 140 W/kg. In addition, Ti3SiC2/Carbon composite is highly stable, with 74.6% capacity retention after 4000 cycles. Ti3SiC2/Carbon’s superior electrochemical properties are ascribed to the 1D nanowire structure and the high specific surface area. Ti3SiC2/Carbon is a prospective electrode material for future supercapacitors.

3D hierarchical porous N-doped carbon quantum dots/vanadium nitride hybrid microflowers as a superior electrode material toward high-performance asymmetric capacitive deionization

2021 ◽  
Author(s):  
Jingxuan Zhao ◽  
Zhibo Zhao ◽  
Yang Sun ◽  
Xiangdong Ma ◽  
Meidan Ye ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Electrode Material ◽  
High Performance ◽  
Carbon Nanomaterials ◽  
Electrode Materials ◽  
Carbon Quantum Dots ◽  
Vanadium Nitride ◽  
Capacitive Deionization ◽  
Hierarchical Porous

Taking into account of time-confusing preparation processing and unsatisfied desalination capacity of carbon nanomaterials, exploring efficient electrode materials remains a great challenge for practical capacitive deionization (CDI) application. In this...

Construction of MnCo2O4/rGO hybrid nanostructures as promising electrode material for high‐performance pseudocapacitors

2021 ◽  
Author(s):  
Mohammad Bagher Askari ◽  
Parisa Salarizadeh ◽  
Amirkhosro Beheshti-Marnani ◽  
Sadegh Azizi ◽  
Mohammad Hassan Ramezan zadeh ◽  
...  
Keyword(s):  
Electrode Material ◽  
High Performance ◽  
Hybrid Nanostructures ◽  
Promising Electrode Material

scholarly journals Easy approach to synthesize N/P/K co-doped porous carbon microfibers from cane molasses as a high performance supercapacitor electrode material

RSC Advances ◽  
2014 ◽  
Vol 4 (66) ◽  
pp. 34739-34750 ◽  
Author(s):  
Alfin Kurniawan ◽  
L. K. Ong ◽  
Fredi Kurniawan ◽  
C. X. Lin ◽  
Felycia E. Soetaredjo ◽  
...  
Keyword(s):  
Electrode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Electrode Materials ◽  
Supercapacitor Electrode ◽  
Cane Molasses ◽  
Electrochemical Application ◽  
Carbon Microfibers ◽  
First Time ◽  
Co Doped

For the first time, porous carbon microfibers co-doped with N/P/K were synthesized from cane molasses by combination of electrospinning and carbonization techniques and its electrochemical application to electrode materials for supercapacitors was investigated.

scholarly journals Ce-Doped PANI/Fe3O4 Nanocomposites: Electrode Materials for Supercapattery

2021 ◽  
Vol 3 ◽  
Author(s):  
Subash Pandey ◽  
Shova Neupane ◽  
Dipak Kumar Gupta ◽  
Anju Kumari Das ◽  
Nabin Karki ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Specific Capacity ◽  
Maximum Energy ◽  
Potential Range ◽  
X Ray Diffraction ◽  
Active Electrode ◽  
Transmission Electron

In this study, we report on a combined approach to preparing an active electrode material for supercapattery application by making nanocomposites of Polyaniline/Cerium (PANI/Ce) with different weight percentages of magnetite (Fe3O4). Fourier-transform infrared spectroscopy (FTIR) and x-ray diffraction (XRD) analyses supported the interaction of PANI with Ce and the formation of the successful nanocomposite with magnetite nanoparticles. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analyses showed the uniform and porous morphology of the composites. Cyclic voltammetry (CV) and galvanostatic charge–discharge (GCD) were used to test the supercapattery behavior of the nanocomposite electrodes in 1.0 M H2SO4. It was found that the supercapattery electrode of PANI/Ce+7 wt.% Fe3O4 exhibited a specific capacity of 171 mAhg−1 in the potential range of −0.2 to 1.0 V at the current density of 2.5 Ag−1. Moreover, PANI/Ce+7 wt.% Fe3O4 revealed a power density of 376.6 Wkg−1 along with a maximum energy density of 25.4 Whkg−1 at 2.5 Ag−1. Further, the cyclic stability of PANI/Ce+7 wt.% Fe3O4 was found to be 96.0% after 5,000 cycles. The obtained results suggested that the PANI/Ce+Fe3O4 nanocomposite could be a promising electrode material candidate for high-performance supercapattery applications.

scholarly journals Electrode Materials for High-Performance Sodium-Ion Batteries

Materials ◽  
2019 ◽  
Vol 12 (12) ◽  
pp. 1952 ◽  
Author(s):  
Santanu Mukherjee ◽  
Shakir Bin Mujib ◽  
Davi Soares ◽  
Gurpreet Singh
Keyword(s):  
High Performance ◽  
Large Scale ◽  
Electrode Materials ◽  
State Of The Art ◽  
Electronic Conductivity ◽  
Lithium Ion ◽  
Cycle Life ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
Grid Storage

Sodium ion batteries (SIBs) are being billed as an economical and environmental alternative to lithium ion batteries (LIBs), especially for medium and large-scale stationery and grid storage. However, SIBs suffer from lower capacities, energy density and cycle life performance. Therefore, in order to be more efficient and feasible, novel high-performance electrodes for SIBs need to be developed and researched. This review aims to provide an exhaustive discussion about the state-of-the-art in novel high-performance anodes and cathodes being currently analyzed, and the variety of advantages they demonstrate in various critically important parameters, such as electronic conductivity, structural stability, cycle life, and reversibility.

Ti2P monolayer as a high performance 2-D electrode material for ion batteries

2020 ◽  
Vol 22 (33) ◽  
pp. 18480-18487
Author(s):  
Zishuang Cheng ◽  
Xiaoming Zhang ◽  
Hui Zhang ◽  
Heyan Liu ◽  
Xiao Yu ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrode Material ◽  
High Performance ◽  
Electrode Materials ◽  
Storage Capacity ◽  
Ion Diffusion ◽  
Battery Electrode

Electrical conductivity, storage capacity and ion diffusion ability are three crucial parameters for battery electrode materials.

Graphene-Wrapped FeOOH Nanorods with Enhanced Performance as Lithium-Ion Battery Anode

NANO ◽  
2020 ◽  
pp. 2150005
Author(s):  
Meng Sun ◽  
Zhipeng Cui ◽  
Huanqing Liu ◽  
Sijie Li ◽  
Qingye Zhang ◽  
...  
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Electronic Conductivity ◽  
Rate Capability ◽  
Lithium Ion ◽  
Extraction Process ◽  
Hybrid Structure ◽  
Charge Transfer Resistance ◽  
Transfer Resistance ◽  
Distinctive Structure

FeOOH nanorods (NRs) wrapped by reduced graphene oxide (rGO) were fabricated using a facile solvothermal method. When used as anode materials for lithium-ion batteries (LIBs), the FeOOH NRs/rGO composites show a higher capacity (490[Formula: see text]mAh g[Formula: see text] after 100 cycles at a current density of 100[Formula: see text]mA g[Formula: see text] and better rate capability than pure FeOOH NRs. The enhanced electrochemical performance can be ascribed to the hybrid structure of FeOOH and rGO. On one hand, the introduction of rGO can improve electronic conductivity and reduce charge-transfer resistance for electrode materials. On the other hand, the distinctive structure (FeOOH NRs surrounded by flexible rGO) can effectively buffer large volume change during the Li[Formula: see text] insertion/extraction process. Our work provides a feasible strategy to obtain high-performance LIBs.

Crystal structure of nickel manganese-layered double hydroxide@cobaltosic oxides on nickel foam towards high-performance supercapacitors

CrystEngComm ◽  
2019 ◽  
Vol 21 (3) ◽  
pp. 470-477 ◽  
Author(s):  
Huihua Peng ◽  
Chuan Jing ◽  
Jie Chen ◽  
Deyi Jiang ◽  
Xiaoying Liu ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Crystal Structures ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Nickel Foam ◽  
Double Hydroxide ◽  
Nickel Manganese

Rational design of the crystal structures of electrode materials is considered as an important strategy to construct high-performance supercapacitors.

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