Insights into the influence of the pore size and surface area of activated carbons on the energy storage of electric double layer capacitors with a new potentially universally applicable capacitor model

Heimböckel, Ruben; Hoffmann, Frank; Fröba, Michael

doi:10.1039/c8cp06443a

Cited by 132 publications

(72 citation statements)

References 63 publications

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“…Of course, at this point the defect structures of the electrodes play additional crucial roles in the determination of the whole device performance. [13][14][15] Thus, to avoid low storage of charge capacity one has to nd the best matching of electrolyte ion size and pore size. 16,17 Recent supercapacitor studies of activated carbon electrode can be found elsewhere.…”

Section: Activated Carbon (Ac)mentioning

confidence: 99%

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Current progress achieved in novel materials for supercapacitor electrodes: mini review

2019

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Section: Activated Carbon (Ac)mentioning

confidence: 99%

“…16,17 Recent supercapacitor studies of activated carbon electrode can be found elsewhere. 15,[18][19][20]…”

Section: Activated Carbon (Ac)mentioning

confidence: 99%

Current progress achieved in novel materials for supercapacitor electrodes: mini review

2019

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“…AC electrodes porosity is also important in the fabrication of EDLC with larger capacitance. Heimbockel et al [ 25 ] documented that the capacitance improved when the pore size enlarged. AC has reasonable big pore size in the range between 20 and 200 Å.…”

Section: Introductionmentioning

confidence: 99%

The Study of EDLC Device with High Electrochemical Performance Fabricated from Proton Ion Conducting PVA-Based Polymer Composite Electrolytes Plasticized with Glycerol

et al. 2020

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In the present work, a novel polymer composite electrolytes (PCEs) based on poly(vinyl alcohol) (PVA): ammonium thiocyanate (NH4SCN): Cd(II)-complex plasticized with glycerol (Gly) are prepared by solution cast technique. The film structure was examined by XRD and FTIR routes. The utmost ambient temperature DC ionic conductivity (σDC) of 2.01 × 10−3 S cm−1 is achieved. The film morphology was studied by field emission scanning electron microscopy (FESEM). The trend of σDC is further confirmed with investigation of dielectric properties. Transference numbers of ions (tion) and electrons (tel) are specified to be 0.96 and 0.04, respectively. Linear sweep voltammetry (LSV) displayed that the PCE potential window is 2.1 V. The desired mixture of activated carbon (AC) and carbon black was used to fabricate the electrodes of the EDLC. Cyclic voltammetry (CV) was carried out by sandwiching the PCEs between two carbon-based electrodes, and it revealed an almost rectangular shape. The EDLC exhibited specific capacitance, energy density, and equivalent series resistance with average of 160.07F/g, 18.01Wh/kg, and 51.05Ω, respectively, within 450 cycles. The EDLC demonstrated the initial power density as 4.065 × 103 W/Kg.

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“…Mesoporous metal oxides with high surface area and porosity are excellent candidates for supercapacitor applications because the specific capacitance of an electrode depends on the specific surface area and pore size distribution [61,62]. In addition, they possess pseudo capacitances along with electric double-layer capacitance [63].…”

Section: Oxide Aerogelsmentioning

confidence: 99%

Aerogels: promising nanostructured materials for energy conversion and storage applications

Alwin

Shajan

2020

Mater Renew Sustain Energy

103

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Aerogels are 3-D nanostructures of non-fluid colloidal interconnected porous networks consisting of loosely packed bonded particles that are expanded throughout its volume by gas and exhibit ultra-low density and high specific surface area. Aerogels are normally synthesized through a sol-gel method followed by a special drying technique such as supercritical drying or ambient pressure drying. The fascinating properties of aerogels like high surface area, open porous structure greatly influence the performances of energy conversion and storage devices and encourage the development of sustainable electrochemical devices. Therefore, this review describes on the applications of inorganic, organic and composite aerogel nanostructures to dye-sensitized solar cells, fuel cells, batteries and supercapacitors accompanied by the significant steps involved in the synthesis, mechanism of network formation and various drying techniques.

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Insights into the influence of the pore size and surface area of activated carbons on the energy storage of electric double layer capacitors with a new potentially universally applicable capacitor model

Abstract: A new capacitor model that confirms the non-constant capacitive contribution of different pore sizes and provides the possibility of simulating the capacitance values of porous carbons.

Cited by 132 publications

References 63 publications

Current progress achieved in novel materials for supercapacitor electrodes: mini review

Current progress achieved in novel materials for supercapacitor electrodes: mini review

The Study of EDLC Device with High Electrochemical Performance Fabricated from Proton Ion Conducting PVA-Based Polymer Composite Electrolytes Plasticized with Glycerol

Aerogels: promising nanostructured materials for energy conversion and storage applications

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