Electrochemical energy storage performance of electrospun AgO x -MnO x /CNF composites

Sinprachim, Tanayt; Phumying, Santi; Maensiri, Santi

doi:10.1016/j.jallcom.2016.03.174

Cited by 23 publications

(7 citation statements)

References 48 publications

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“…Also it should be noted that there is no contribution of Ni‐foam to the overall capacitance as Ni‐foam is electrochemically inactive in the studied potential region i. e. from 0 to −1 V vs. Ag/AgCl . The present results are quite comparable or superior to the reported values obtained in three electrode cells in aqueous KOH or Li 2 SO 4 electrolytes from different carbon nanofibers derived through electrospinning method, using various organic precursors . He et al .…”

Section: Resultssupporting

confidence: 81%

“…A capacitance value of 159 F g −1 at 1.25 A g −1 from PAN derived CNF has also been reported by Tai et al . A similar value of ∼150 F g −1 at 0.5 A g −1 has been observed by Sinprachim et al . A relatively higher value of 196 F g ‐1 at 0.2 A g ‐1 has been reported by Ma et al from CNFs prepared by electrospinning of PVA/formaldehyde/phenol mixture.…”

Section: Resultssupporting

confidence: 80%

“…A relatively higher value of 196 F g ‐1 at 0.2 A g ‐1 has been reported by Ma et al from CNFs prepared by electrospinning of PVA/formaldehyde/phenol mixture. A summarized view of electrochemical performances obtained with CNF is given in Table S1, Supporting Information. Also, there are several reports on other types of carbon e. g., porous carbon or graphene based composite materials .…”

Section: Resultsmentioning

confidence: 99%

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Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties

et al. 2017

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Porous carbon nanofibers (CNF) with high surface area were synthesized by electrospinning a mixture of polymerized sucrose and poly(vinyl alcohol) (PVA) in water. This green method provides an excellent environment friendly alternative to the toxic polymers and solvents commonly used for synthesis of CNF/metal nanoparticle composites. Stabilization at 350 °C and subsequent carbonization of the electrospun polymer at 950 °C in reducing environment formed semi‐graphitic CNF. In situ doping of Ag nanoparticles in CNF resulted in a ten‐fold increase in electrical conductivity of CNF for as low as 0.1 wt% Ag doping. When tested as electrode in aqueous electrochemical supercapacitor, the positive effect of Ag‐doping is revealed by two‐fold improvement in capacitance over the pristine CNF at a high current density of 5.0 A g‐1. Interestingly, a continuous increase in capacitance by ∼65% was observed during 5000 continuous cycling which is attributed to increase in active charge storage sites due to gradual opening up of the pores and increasing diffusion of electrolyte ions triggered by enhanced wettability of the electrodes.

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Section: Resultssupporting

confidence: 81%

Section: Resultssupporting

confidence: 80%

Section: Resultsmentioning

confidence: 99%

See 1 more Smart Citation

Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties

et al. 2017

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“…Specific capacitance values decreased as the current density increased. This is owing to the electrode resistance by the capacitance retention rate at a high current density [ 48 ].…”

Section: Resultsmentioning

confidence: 99%

Characterization of Activated Carbon Paper Electrodes Prepared by Rice Husk-Isolated Cellulose Fibers for Supercapacitor Applications

Kim

Kwac

et al. 2020

Molecules

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For the preparation of activated carbon papers (APCs) as supercapacitor electrodes, impurity substances were removed from rice husks, before carbonization and various activation temperature treatments, to optimize electro chemical efficiency. The porosities and electrochemical performances of the ACPs depended strongly on activation temperature: The specific surface area increased from 202.92 (500 °C) to 2158.48 m2 g−1 (1100 °C). XRD and Raman analyses revealed that ACP graphitization also increased with the activation temperature. For activation at 1100 °C, the maximum specific capacitance was 255 F g−1, and over 92% of its capacitance was retained after 2000 cycles.

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“…16 The conditions used herein have been optimized in the previous work to yield fibers with diameter in the range of 200-650 nm. 35 Calcination of the electrospun nanofibers then took place in three steps: stabilization, carbonization, and activation. 35 First, the electrospun PAN fiber was stabilized in an incubator at 70 °C for 24 h and at 100 °C for 4 h. This step was done at mild temperatures to produce infusible ladder-form polymer and remove any impurities as well as volatile substances.…”

Section: Methodsmentioning

confidence: 99%

Anti-Fouling Effects of Carbon Nanofiber in Electrochemical Sensing of Phenolic Compounds

Kaewket

Karuwan

Sonsupap

et al. 2021

J. Electrochem. Soc.

Self Cite

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Electrode fouling has been a major problem in the analysis of phenolic compounds. This work synthesized carbon nanofiber (CNF) by electrospinning and demonstrated the anti-fouling properties of the material. The synthesized CNF was characterized by scanning electron microscopy, X-ray diffraction, Raman spectroscopy, infrared spectroscopy, electrochemical impedance spectroscopy, and cyclic voltammetry. Three electrode preparation methods were then tested including as-spun sheet, screen printing and dropcasting. The electrochemical behaviors of CNF towards a wide range of systems were demonstrated, including reversible redox processes [e.g. K4Fe(CN)6 and catechol], the deposition and stripping of metal ions [e.g. Ag(I) and Cu(II)], and irreversible redox processes [e.g. resorcinol and bisphenol-A]. To highlight the advantages of the anti-fouling properties of CNF, we then used resorcinol which is an environmental contaminant as a model system and explored the analytical performances of CNF electrodes. The linear range of resorcinol detection was 10–250 μM. The sensitivity and limit of detection (3sB m−1) were determined to be 0.021 μA μM−1 and 7.27 μM, respectively.

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Electrochemical energy storage performance of electrospun AgO x -MnO x /CNF composites

Cited by 23 publications

References 48 publications

Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties

Green Synthesis of Electrospun Porous Carbon Nanofibers from Sucrose and Doping of Ag Nanoparticle with Improved Electrical and Electrochemical Properties

Characterization of Activated Carbon Paper Electrodes Prepared by Rice Husk-Isolated Cellulose Fibers for Supercapacitor Applications

Anti-Fouling Effects of Carbon Nanofiber in Electrochemical Sensing of Phenolic Compounds

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