Performance of electric double layer capacitors using nanocarbons produced from nanoparticles of resorcinol–formaldehyde polymers

Tashima, Daisuke; Taniguchi, M.; Fujikawa, Daisuke; Kijima, Toshiki; Otsubo, Masahisa

doi:10.1016/j.matchemphys.2008.11.017

Cited by 13 publications

(11 citation statements)

References 16 publications

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“…However there are a few studies on generating the porosity in carbon xerogels either by activation or by tailoring the process conditions. [20][21][22][23] Some of these techniques either lack in bulk production of carbon nanoparticles or are too complex and need very careful control. 10,11,19 In this work, we report a facile way to synthesize interconnected carbon xerogel nanoparticles by repetitive inverse emulsion polymerization of RF gel followed by subcritical drying followed by pyrolysis in the nitrogen atmosphere.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of carbon xerogel nanoparticles by inverse emulsion polymerization of resorcinol–formaldehyde and their use as anode materials for lithium-ion battery

2015

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Carbon xerogel nanoparticles were synthesized using repeated inverse emulsion polymerization of resorcinol-formaldehyde, followed by subcritical drying and pyrolysis at 1173 K. The prepared carbon xerogel nanoparticles were then structurally characterized by scanning electron microscopy, Raman spectroscopy, X-ray diffraction, transmission electron microscopy and small angle X-ray scattering.Further, these carbon xerogel nanoparticles were tested for their electrochemical properties. Galvanostat charge/discharge experiments revealed a reversible capacity (400 mA h g À1 ) higher than that of graphite with excellent capacity retention and coulombic efficiency. Cyclic voltammetry and impedance spectroscopic studies were also carried out to support these findings. The remarkable electrochemical behaviour as exhibited by these carbon xerogel nanoparticles paves the way for their potential use as anode materials in lithium-ion battery.

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Section: Introductionmentioning

confidence: 99%

Synthesis of carbon xerogel nanoparticles by inverse emulsion polymerization of resorcinol–formaldehyde and their use as anode materials for lithium-ion battery

2015

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“…Inverse emulsification of RF sol is a widely used technique to synthesize micro/nano particles. 18,19,37,41,43 This method was well explored for the synthesis of carbon aerogel, xerogel, and cryogel particle synthesis by carbonization of RF gel particles in the inert atmosphere. Electrospraying is another alternative technique to produce micro/nano size particles using electrospinning setup.…”

Section: B Electrospraying/electrospinningmentioning

confidence: 99%

Resorcinol-formaldehyde derived carbon xerogels: A promising anode material for lithium-ion battery

Kakunuri

Sharma

2017

J. Mater. Res.

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“…Porous carbon monoliths can be prepared by a number of procedures and from different reagents: i) carbonization of gels obtained from several carbon precursors and catalysts, ii) carbonization of gels having a “soft template”, which is thermally removed during carbonization, or a “hard template”, subsequently removed by reaction with specific reagents after carbonization, iii) infiltration of an inorganic monolith with a carbon precursor followed by carbonization and removal of the inorganic component, iv) hydrothermal carbonization of biomass precursors,, v) carbonization of monoliths from natural biomaterials, such as pieces of wood, bone, etc., and vi) mold conforming under pressure of carbon or a carbon precursor followed by its carbonization . The latter procedure is easier and cheaper than the others.…”

Section: Introductionmentioning

confidence: 99%

New Carbon Monoliths for Supercapacitor Electrodes. Looking at the Double Layer

et al. 2017

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Carbon monoliths are prepared by combining two carbon phases. A major phase is activated anthracite, which provides microporosity and a large surface area. The other phase is a carbonized polymer that provides self-consistency and contributes to densifying the monolith. Different degrees of anthracite activation and different contents of the two phases are investigated. These all-carbon monoliths have surface areas up to 2600 m 2 g À1 , mechanical strengths up to 6 MPa, electrical conductivities up to 2-4 S cm À1 , and densities between 0.4 and 0.7 g cm À3 . In sulfuric acid electrolyte, gravimetric capacitances up to 307 F g À1 are achieved. The double-layer capacitances due to the hydronium and bisulfate ions are separately measured, the former being approximately 25% higher than the latter. The size of the two ions electro-adsorbed at the double layer is discussed. The pseudocapacitance associated with the hydronium ion is 10-25% of the total capacitance of this ion. All of the carbon monoliths show high capacitance retention with current density; the retention of the double-layer capacitance is similar for the two types of ions and higher than the retention of the pseudocapacitance associated with the hydronium ion.

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Performance of electric double layer capacitors using nanocarbons produced from nanoparticles of resorcinol–formaldehyde polymers

Cited by 13 publications

References 16 publications

Synthesis of carbon xerogel nanoparticles by inverse emulsion polymerization of resorcinol–formaldehyde and their use as anode materials for lithium-ion battery

Synthesis of carbon xerogel nanoparticles by inverse emulsion polymerization of resorcinol–formaldehyde and their use as anode materials for lithium-ion battery

Resorcinol-formaldehyde derived carbon xerogels: A promising anode material for lithium-ion battery

New Carbon Monoliths for Supercapacitor Electrodes. Looking at the Double Layer

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