Preparation and Characterization of porous Carbon/Nickel Nanofibers for Supercapacitor

Gao, Dawei; Wang, Lili; Xin, Xia; Qiao, Hui; Cai, Yibing; Huang, Fenglin; Gupta, Kishor; Wei, Qufu; Kumar, Satish

doi:10.1177/155892501300800405

Cited by 5 publications

(3 citation statements)

References 21 publications

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“…Vanadium pentoxide (V 2 O 5 )/carbon nanofiber composites were prepared for supercapacitor applications [44]. It was observed that loadings of V [47]. They also observed a decrease in specific capacitance with increase in discharge current, e.g.…”

Section: Electrochemical Properties Of Comn 2 O 4 Nanofibers Based Elmentioning

confidence: 99%

Electrochemical energy storage performance of electrospun CoMn2O4 nanofibers

Alkhalaf

Ranaweera

Kahol

et al. 2017

Journal of Alloys and Compounds

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Nanofibers of cobalt manganese oxide (CoMn 2 O 4) were grown using an electrospun technique. Structural and microstructural characterizations confirm the formation of phase pure CoMn 2 O 4 with high porosity. The potential application of CoMn 2 O 4 nanofibers as an electrode material for energy storage device was studied using cyclic voltammetry and galvanostatic charge-discharge measurements. A specific capacitance of 121 F/g was observed with enhanced cyclic stability. Furthermore, an energy storage device was fabricated by sandwiching two electrodes separated by an ion transporting layer. The device showed a specific capacitance of 241 mF/cm 2 in 3M NaOH electrolyte. The effect of temperature on the charge storage properties of the device was also investigated for high temperature applications. The device showed about 75% improvement in the charge storage capacity when the temperature was increased from 10 to 70 o C.This research suggests that nanofibers of CoMn 2 O 4 could be used for fabrication of energy storage devices which could operate in a wide temperature range with improved efficiency.

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Section: Electrochemical Properties Of Comn 2 O 4 Nanofibers Based Elmentioning

confidence: 99%

Electrochemical energy storage performance of electrospun CoMn2O4 nanofibers

Alkhalaf

Ranaweera

Kahol

et al. 2017

Journal of Alloys and Compounds

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“…The choice of nickel species as electrode materials is due to the cheapness, simplicity in production and low environmental impact. [27][28][29] In addition, it is well known that nickel species, directly grown and distributed along the CNF, improve the electrical conductivity of the carbon nanofibers and provide an appropriate surface polarity with an increase of carbon surface wettability. 30,31 Therefore, this means a better electrolyte accessibility at the electrode surface for improving the kinetic reaction at the electrode-electrolyte interface.…”

mentioning

confidence: 99%

Synthesis and Characterization of Electrospun Nickel-Carbon Nanofibers as Electrodes for Vanadium Redox Flow Battery

Blasi

Busacca

Blasi

et al. 2018

J. Electrochem. Soc.

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Electrodes based on electrospun nickel carbon nanofibers (Ni/CNF) are investigated as highly active both for anodic and cathodic reaction. Scanning electron microscopy (SEM) as well as transmission electron microscopy (TEM) analyses show metal nanoparticles embedded in graphitic carbon nanofibers. A high surface area due to large mesoporous structure formation is calculated for the Ni/CNF by BET analysis. Cyclic voltammetry (CV) results indicate the higher electrocatalytic activity toward the [VO] 2+ /[VO 2 ] + as well as V 2+ /V 3+ redox reactions for Ni/CNF with respect to the bare CNF. Charge-discharge tests show energy efficiency (EE) value of 68%, voltage efficiency (VE) of 72% and a coulomb efficiency (CE) of 94% for Ni/CNF at 160 mA • cm −2 . The electrochemical performance recorded at high current density could be ascribed to the high electrical conductivity as well as the polarity on the carbon surface due to the nickel nanoparticles. In particular, an increment in terms of wettability improves the accessibility to the aliphatic and carboxyl groups on the composite surface sample enhancing the reversibility at the electrode/electrolyte interface.

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“…By adding a gold salt into the precursor solution, our objective is to obtain polymeric fibers that contain AuNPs after the reduction of the gold salt and particle growth. Some examples of Pd‐ and Ni‐modified carbon fibers prepared by a procedure similar to that employed in this work can be found in the literature . A similar approach was employed for the synthesis of polyethylene oxide (PEO) fibers containing AgNPs, for which PEO itself played the role of the reducing agent.…”

Section: Introductionmentioning

confidence: 99%

One‐Pot Route to Gold Nanoparticles Embedded in Electrospun Carbon Fibers as an Efficient Catalyst Material for Hybrid Alkaline Glucose Biofuel Cells

et al. 2016

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Traditional strategies to develop Au metal nanoparticle catalysts for glucose oxidation comprise Au nanoparticles (NPs) supported on electrode surfaces. In this work, the fabrication of a new material capable of acting as an abiotic anode for the electrooxidation of glucose was developed. The material is composed of electrospun carbon fibers containing gold nanoparticles formed in situ from a polyacrylonitrile (PAN) solution with HAuCl4. This approach allows the pre‐reduction of the gold salt by PAN under mild conditions without the need for extra energy and leads to very stable carbon–gold bonding with well‐dispersed AuNPs, not previously reported. The gold‐modified carbon fibers (Au@CFs) were characterized by SEM, energy‐dispersive X‐ray spectroscopy, XRD, and electrochemical analysis. The Au@CF electrodes showed electrochemical activity toward glucose oxidation in alkaline media. Combined to a bilirubin oxidase modified biocathode (BOD@CFs), the resulting hybrid glucose biofuel cell showed open‐circuit voltage and power density values of 0.75 V and 65 μW cm−2, respectively, which remained intact after 3 weeks.

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Preparation and Characterization of porous Carbon/Nickel Nanofibers for Supercapacitor

Cited by 5 publications

References 21 publications

Electrochemical energy storage performance of electrospun CoMn2O4 nanofibers

Electrochemical energy storage performance of electrospun CoMn2O4 nanofibers

Synthesis and Characterization of Electrospun Nickel-Carbon Nanofibers as Electrodes for Vanadium Redox Flow Battery

One‐Pot Route to Gold Nanoparticles Embedded in Electrospun Carbon Fibers as an Efficient Catalyst Material for Hybrid Alkaline Glucose Biofuel Cells

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