A novel electrode material for electric double-layer capacitors

Wei, Yi; Fang, Baizeng; Iwasa, S.; Kumagai, Masaya

doi:10.1016/j.jpowsour.2004.10.001

Cited by 132 publications

(82 citation statements)

References 9 publications

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“…As an EDLC is a liquid-solid interface system, the surface area and nanopore width strongly affect the capacity and cyclability. For this purpose, activated carbons and related materials have been fabricated [4][5][6][7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Local Ordered Structure of Propylene Carbonate in Slit-Shaped Carbon Nanopores by GCMC Simulation

Ohba

Kaneko

Kanoh

2011

ISRN Nanotechnology

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An electric double-layer capacitor (EDLC) has high potential for storing electrical energy at a high power density. It was reported that a narrow nanopore system provides higher performance of EDLCs. In such a system, propylene carbonate (PC) is generally used as a solvent in EDLCs. Hence, the structure of PC in the slit-shaped carbon nanopores should be investigated to reveal the EDLC mechanism. In this paper, grand canonical Monte Carlo simulation of PC adsorbed in nanopores was performed to elucidate molecular-level understanding of the influence of PC on the EDLC performance. PC molecules have a highly ordered structure and longer intermolecular distances in nanopores of a pore width less than 0.7 nm. Thus, the highly ordered and low-density structure formation of the adsorbed PC molecules in narrow nanopores provides a permeation path for electrolytes through nanopores, indicating high-performance EDLCs.

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Section: Introductionmentioning

confidence: 99%

Local Ordered Structure of Propylene Carbonate in Slit-Shaped Carbon Nanopores by GCMC Simulation

Ohba

Kaneko

Kanoh

2011

ISRN Nanotechnology

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“…Subsequently, the study on application of ACAs has been attracting much attention on the material for electric double-layer capacitor. [2][3][4][5] Besides CO 2 activation, steam activation also was used. 6,7 In previous studies, 8 the adsorption property of organic vapors on ACAs was investigated.…”

Section: Introductionmentioning

confidence: 99%

Porous structure and liquid‐phase adsorption properties of activated carbon aerogels

Yang

2007

J of Applied Polymer Sci

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In this article, activated carbon aerogels (ACAs) were prepared by CO 2 activation. Their pore structures were investigated by N 2 adsorption-desorption analysis. ACAs have excellent microporosity (e.g. 0.36 cm 3 /g) and mesoporosity (e.g. 1.72 cm 3 /g). Adsorption characteristics of phenol, methylene blue, I 2 , and VB 12 on ACAs in the liquid phase were studied by static adsorption experiments. Results showed that CO 2 activation process is an effective way to introduce micropores in carbon aerogels, which is enhanced with the increase of activation time. As a result, the adsorption capacities of the four mentioned adsorbates on ACAs were improved gradually with the increase of activation time. However, mesopore volume is also a factor on improving adsorption properties for the relatively giant molecules methylene blue and VB 12 .

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“…Laboratory-Scale Carbonaceous Active Materials Numerous types of carbons that have been tried as electrodes in EDLCs can be summarized as halloysite templated porous carbon [30], multibranched porous carbon nanofibers [31], nanostructured graphite [32], bamboo-based activated carbon [33], woven carbon cloth [34], CNTs [35], nanostructured mesoporous carbon [36], CNT/felt composite electrode [37], cresolformaldehyde-based carbon aerogel [38], mesoporous carbon composite (carbon nanofibers/porous carbon) [39], porous carbon from thermoplastic and MgO precursors [40], sodium-oleate-modified activated carbon aerogel [41,42], carbon aerogel [43][44][45][46], activated carbonized methylcellulose [47], carbide-derived carbons (CDC) [48][49][50][51] silica MCM-48-templated mesoporous carbon [52], zeolite-templated carbon [53], electrospun activated carbon nanofibers [54], silica MCM-48-and SBA-15-templated mesoporous carbon [55], carbon nanofibers [56], carbon blacks, vegetable/wood-based activated carbons, activated novoloid fibers [57], activated needle coke from coal tar pitch [58], fullerene-soot [59], Nomex-derived activated carbon fibers [60], activated CNTs [61,62], mesoporous carbon spheres [63], pyrolyzed carbons from graphite oxides [64], Ketjenblack/CNTs [65], multiwalled [66][67]…”

Section: Current Collector Working In Aqueous Mediummentioning

confidence: 99%

Manufacturing of Industrial Supercapacitors

Azaïs¹

2013

Supercapacitors

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A novel electrode material for electric double-layer capacitors

Cited by 132 publications

References 9 publications

Local Ordered Structure of Propylene Carbonate in Slit-Shaped Carbon Nanopores by GCMC Simulation

Local Ordered Structure of Propylene Carbonate in Slit-Shaped Carbon Nanopores by GCMC Simulation

Porous structure and liquid‐phase adsorption properties of activated carbon aerogels

Manufacturing of Industrial Supercapacitors

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