Carbon Nanofiber as Electrode Materials for Supercapacitors

2020 ◽  
pp. 179-200
Author(s):  
Bibekananda De ◽  
Soma Banerjee ◽  
Kapil Dev Verma ◽  
Tanvi Pal ◽  
P. K. Manna ◽  
...  
Keyword(s):  
Electrode Materials ◽  
Carbon Nanofiber

scholarly journals A Review of Electrospun Carbon Nanofiber-Based Negative Electrode Materials for Supercapacitors

Electrochem ◽  
2021 ◽  
Vol 2 (2) ◽  
pp. 236-250
Author(s):  
Arjun Prasad Tiwari ◽  
Tanka Mukhiya ◽  
Alagan Muthurasu ◽  
Kisan Chhetri ◽  
Minju Lee ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Negative Electrode ◽  
Smart Devices ◽  
Potential Candidate ◽  
Free Standing ◽  
High Capacitance ◽  
Negative Electrode Materials ◽  
Carbon Based

The development of smart negative electrode materials with high capacitance for the uses in supercapacitors remains challenging. Although several types of electrode materials with high capacitance in energy storage have been reported, carbon-based materials are the most reliable electrodes due to their high conductivity, high power density, and excellent stability. The most common complaint about general carbon materials is that these electrode materials can hardly ever be used as free-standing electrodes. Free-standing carbon-based electrodes are in high demand and are a passionate topic of energy storage research. Electrospun nanofibers are a potential candidate to fill this gap. However, the as-spun carbon nanofibers (ECNFs) have low capacitance and low energy density on their own. To overcome the limitations of pure CNFs, increasing surface area, heteroatom doping and metal doping have been chosen. In this review, we introduce the negative electrode materials that have been developed so far. Moreover, this review focuses on the advances of electrospun nanofiber-based negative electrode materials and their limitations. We put forth a future perspective on how these limitations can be overcome to meet the demands of next-generation smart devices.

scholarly journals Influence of the Hydrophilic Surface of Nanofiber Support on the Performance of Hybrid Supercapacitors

2021 ◽  
Author(s):  
Hyo-Young Kim ◽  
Seon-Yeong Lee ◽  
In-Yup Jeon ◽  
Jeeyoung Shin ◽  
Young-Wan Ju
Keyword(s):  
Surface Properties ◽  
High Performance ◽  
Fossil Fuels ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Co3o4 Nanoparticles ◽  
Hydrophilic Surface ◽  
Hybrid Supercapacitors ◽  
Load Response ◽  
Doped Graphene

Concerns associated with global warming and the depleting reserves of fossil fuels have highlighted the importance of high-performance energy storage systems (ESSs) for efficient energy usage. ESSs such as supercapacitors can contribute to improved power quality of an energy generation system, which is characterized by a slow load response. Composite materials are primarily used as supercapacitor electrodes because they can compensate for the disadvantages of carbon or metal oxide electrode materials. In this study, a composite of oxide nanoparticles loaded on a carbon nanofiber support was used as an electrode material for a hybrid supercapacitor. The addition of a small amount of hydrophobic Fe- and N-doped graphene nanoplates modified the surface properties of carbon nanofibers prepared by electrospinning. Accordingly, the effects of the hydrophobic/hydrophilic surface properties of the nanofiber support on the morphology of Co3O4 nanoparticles loaded on the nanofiber, as well as the performance of the supercapacitor, were systematically investigated.

scholarly journals Influence of the Hydrophilic Surface of Nanofiber Support on the Performance of Hybrid Supercapacitors

Energies ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 7621
Author(s):  
Hyo-Young Kim ◽  
Seon-Yeong Lee ◽  
In-Yup Jeon ◽  
Jeeyoung Shin ◽  
Young-Wan Ju
Keyword(s):  
Surface Properties ◽  
High Performance ◽  
Fossil Fuels ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
Co3o4 Nanoparticles ◽  
Hydrophilic Surface ◽  
Hybrid Supercapacitors ◽  
Load Response ◽  
Doped Graphene

Concerns associated with global warming and the depleting reserves of fossil fuels have highlighted the importance of high−performance energy storage systems (ESSs) for efficient energy usage. ESSs such as supercapacitors can contribute to improved power quality of an energy generation system, which is characterized by a slow load response. Composite materials are primarily used as supercapacitor electrodes because they can compensate for the disadvantages of carbon or metal oxide electrode materials. In this study, a composite of oxide nanoparticles loaded on a carbon nanofiber support was used as an electrode material for a hybrid supercapacitor. The addition of a small amount of hydrophilic FeN@GnP (Fe− and N−doped graphene nanoplates) modified the surface properties of carbon nanofibers prepared by electrospinning. Accordingly, the effects of the hydrophobic/hydrophilic surface properties of the nanofiber support on the morphology of Co3O4 nanoparticles loaded on the nanofiber, as well as the performance of the supercapacitor, were systematically investigated.

Novel Co3O4/Carbon Nanofiber Composite Electrode with High Li-Storage Capacity for Lithium Ion Batteries

2011 ◽  
Vol 197-198 ◽  
pp. 1113-1116 ◽  
Author(s):  
Wen Li Yao ◽  
Jin Qing Chen ◽  
An Yun Li ◽  
Xin Bing Chen
Keyword(s):  
Composite Materials ◽  
Lithium Ion Batteries ◽  
Electrode Materials ◽  
Storage Capacity ◽  
Carbon Nanofiber ◽  
Negative Electrode ◽  
Lithium Ion ◽  
Reversible Capacity ◽  
Cycling Performance ◽  
Li Storage

The platelike Co3O4/carbon nanofiber (CNF) composite materials were synthesized by the calcination of β-Co(OH)2/CNF precursor prepared by a surfactant-free hydrothermal method. As negative electrode materials for lithium-ion batteries, the platelike Co3O4/CNF composites can deliver a high reversible capacity of 900 mAh g-1 for a life extending over hundreds of cycles at a current density of 100 mA g-1. The high Li-storage capacity and excellent cycling performance for Co3O4/CNF composite materials may mainly attribute to the beneficial effect of the CNFs addition on enhancing structural stability and electrical conductivity of Co3O4 platelets.

scholarly journals K2Ti6O13 Nanoparticle-Loaded Porous rGO Crumples for Supercapacitors

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Chongmin Lee ◽  
Sun Kyung Kim ◽  
Hankwon Chang ◽  
Hee Dong Jang
Keyword(s):  
Alkali Metal ◽  
Electrode Materials ◽  
Carbon Nanofiber ◽  
High Specific Surface Area ◽  
Large Radius ◽  
Composite Electrodes ◽  
Aerosol Spray ◽  
Large Lattice ◽  
Superior Electrochemical Properties ◽  
A Current

AbstractOne-dimensional alkali metal titanates containing potassium, sodium, and lithium are of great concern owing to their high ion mobility and high specific surface area. When those titanates are combined with conductive materials such as graphene, carbon nanotube, and carbon nanofiber, they are able to be employed as efficient electrode materials for supercapacitors. Potassium hexa-titanate (K2Ti6O13, KTO), in particular, has shown superior electrochemical properties compared to other alkali metal titanates because of their large lattice parameters induced by the large radius of potassium ions. Here, we present porous rGO crumples (PGC) decorated with KTO nanoparticles (NPs) for application to supercapacitors. The KTO NP/PGC composites were synthesized by aerosol spray pyrolysis and post-heat treatment. KTO NPs less than 10 nm in diameter were loaded onto PGCs ranging from 3 to 5 µm. Enhanced porous structure of the composites was obtained by the activation of rGO by adding an excessive amount of KOH to the composites. The KTO NP/PGC composite electrodes fabricated at the GO/KOH/TiO2 ratio of 1:3:0.25 showed the highest performance (275 F g−1) in capacitance with different KOH concentrations and cycling stability (83%) after 2000 cycles at a current density of 1 A g−1.

Preparation, structure and supercapacitance of bonded carbon nanofiber electrode materials

Carbon ◽  
2011 ◽  
Vol 49 (7) ◽  
pp. 2380-2388 ◽  
Author(s):  
Haitao Niu ◽  
Jin Zhang ◽  
Zongli Xie ◽  
Xungai Wang ◽  
Tong Lin
Keyword(s):  
Electrode Materials ◽  
Carbon Nanofiber
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