Supercapacitive Properties of Composite Electrode Consisting of Activated Carbon and Di(1-aminopyrene)quinone

Kim, Kwang Man; Lee, Young-Gi; Park, Jeong Ho; Ko, Jang Myoun

doi:10.4218/etrij.16.2515.0018

Cited by 7 publications

(2 citation statements)

References 28 publications

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“…The PAC supercapacitor exhibited a high specific capacitance of 195 F g −1 at 0.5 A g −1 and excellent cycle performance, retaining 99.0% of its original capacitance after 80 000 cycles. This low‐cost, scalable fabrication method presents a new alternative to commercial activated carbon for higher performance supercapacitor applications, and furthermore, to porous carbon composites in a variety of other applications …”

Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Kang

Kim

2019

Energy Tech

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The capacitance of an electric double‐layer capacitor (EDLC) is largely determined by the surface area and the electrical conductivity of the electrode material. To enhance the performance of EDLCs, a separate activation procedure is commonly used to increase the porosity of the electrode. A facile and scalable method of producing highly porous carbon electrodes for high‐performance supercapacitors without a separate activation procedure via simple thermal treatment of potassium acetate is reported. Potassium acetate‐derived carbon (PAC) exhibits a high specific surface area of 1704 m2 g−1 and superior electrical conductivity of 22 950 S cm−1 without further treatment. When used for EDLC electrodes, PAC displays a high specific capacitance of 195 F g−1 at 0.5 A g−1 and excellent cyclic stability with capacitance retention of 99.0% over 80 000 charge/discharge cycles. Carbonization and simultaneous self‐activation of PAC demonstrates a facile and efficient method of producing carbon electrodes with a high surface area without an additional activation procedure, which provides an efficient solution for producing high‐performance supercapacitor electrodes at low cost.

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Section: Resultsmentioning

confidence: 99%

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Kang

Kim

2019

Energy Tech

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“…A variety of materials and fabrication processes have been developed to construct the EDLCs. Carbon‐based materials such as carbon nanotubes (CNT) , graphene , and activated carbon have been studied for electrode fabrication. Activated carbon‐based super‐capacitors have been most developed because of their low fabrication cost, large capacitance, and long cycle time .…”

Section: Introductionmentioning

confidence: 99%

Thin Film Energy Storage Device with Spray-Coated Sliver Paste Current Collector

Yoon¹,

Jang²,

Jo³

et al. 2017

ETRI Journal

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This paper challenges the fabrication of a thin film energy storage device on a flexible polymer substrate specifically by replacing most commonly used metal foil current collectors with coated current collectors. Mass-manufacturable spray-coating technology enables the fabrication of two different half-cell electric double layer capacitors (EDLC) with a spray-coated silver paste current collector and a Ni foil current collector. The larger specific capacitances of the halfcell EDLC with the spray-coated silver current collector are obtained as 103.86 F/g and 76.8 F/g for scan rates of 10 mV/s and 500 mV/s, respectively. Further, even though the half-cell EDLC with the spray-coated current collector is heavier than that with the Ni foil current collector, smaller Warburg impedance and contact resistance are characterized from Nyquist plots. For the applied voltages ranging from À0.5 V to 0.5 V, the spray-coated thin film energy storage device exhibits a better performance.

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Electrochemical generation of 1-amino-pyrene-4,5,9,10 tetrol on the MWCNT surface for low potential electrocatalytic NADH oxidation

Leda

Rębiś

Frankowski

et al. 2023

Electrochimica Acta

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Supercapacitive Properties of Composite Electrode Consisting of Activated Carbon and Di(1-aminopyrene)quinone

Cited by 7 publications

References 28 publications

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Facile Synthesis of Porous Carbon Via Self‐Activation of Potassium Acetate for High‐Performance Supercapacitor Electrodes with Excellent Cyclic Stability

Thin Film Energy Storage Device with Spray-Coated Sliver Paste Current Collector

Electrochemical generation of 1-amino-pyrene-4,5,9,10 tetrol on the MWCNT surface for low potential electrocatalytic NADH oxidation

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