Supercapacitor electrodes from new ordered porous carbon materials obtained by a templating procedure

Vix‐Guterl, Cathie; Saadallah, S.; Jurewicz, K.; Frąckowiak, Elżbieta; Reda, Mohamad; Parmentier, Julien; Patarin, Joël; Béguin, François

doi:10.1016/j.mseb.2003.10.096

Cited by 173 publications

(89 citation statements)

References 14 publications

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“…4, the specific capacitance C 0 also increases linearly with the specific surface area but, in this case, S total leads to approximately 0.06 F m −2 as opposed to 0.14 F m −2 for the aqueous H 2 SO 4 and KOH electrolytes. This ratio is in agreement with data reported by other authors [25][26][27] for TMCs with pore sizes around 3-4 nm and BET surface areas up to 1300 m 2 g −1 . Although these areas may be questioned, a good fit to the general pattern is observed.…”

Section: Specific Capacitance At Low Current Densitysupporting

confidence: 93%

“…On the other hand, 200-220 F g −1 seems to be the upper limit for this type of electrolyte [24][25][26][27][28][29][30][31][32][33]. This limit is in agreement with the expected value based on 1500-1600 m 2 g −1 as a realistic upper-bound for the specific surface area of templated mesoporous carbons (see Section 3.1).…”

Section: Specific Capacitance At Low Current Densitysupporting

confidence: 86%

“…For example, Kodama et al [28] and Frackowiak et al [45] reported higher capacitances for carbons containing residual nitrogen from the precursor. Increased performances have also been reported for sucrose- based TMCs [25][26][27], obviously due to the higher oxygen content of the precursor.…”

Section: Specific Capacitance At Low Current Densitymentioning

confidence: 93%

“…Several studies have suggested promising properties of templated mesoporous carbons (TMC) when used in EDLC systems [23][24][25][26][27][28][29][30][31][32][33], but at the present stage the absence of a systematic analysis does not allow a reliable correlation between the structural characteristics of these materials and their capacitive behaviour. In fact, this approach is of prime importance for the design of carbon electrodes and electrochemical capacitors with improved performances.…”

Section: Introductionmentioning

confidence: 99%

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Performance of templated mesoporous carbons in supercapacitors

Sevilla

Álvarez

Centeno

et al. 2007

Electrochimica Acta

119

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By analogy with other types of carbons, templated mesoporous carbons (TMCs) can be used as supercapacitors. Their contribution arises essentially from the double layer capacity formed on their surface, which corresponds to 0.14 F m −2 in aqueous electrolytes such as H 2 SO 4 and KOH and 0.06 F m −2 for the aprotic medium (C 2 H 5 ) 4 NBF 4 in CH 3 CN. In the case of a series of 27 TMCs, it appears that the effective surface area determined by independent techniques can be as high as 1500-1600 m 2 g −1 , and therefore exceeds the value obtained for many activated carbons (typically 900-1300 m 2 g −1 ). On the other hand, the relatively low amount of surface oxygen in the present TMCs, as opposed to activated carbons, reduces the contribution of pseudo-capacitance effects and limits the gravimetric capacitance to 200-220 F g −1 for aqueous electrolytes. In the case of non-aqueous electrolyte, it rarely exceeds 100 F g −1 .It is also shown that the average mesopore diameter of these TMCs does not improve significantly the ionic mobility compared with typical activated carbons of pore-widths above 1.0-1.3 nm.This study suggests that activated carbons remain the more promising candidates for supercapacitors with high performances.

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Section: Specific Capacitance At Low Current Densitysupporting

confidence: 93%

Section: Specific Capacitance At Low Current Densitysupporting

confidence: 86%

Section: Specific Capacitance At Low Current Densitymentioning

confidence: 93%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance of templated mesoporous carbons in supercapacitors

Sevilla

Álvarez

Centeno

et al. 2007

Electrochimica Acta

119

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“…[2][3][4][5][8][9][10][11][12] Understanding the influence of different mesoporous materials (ordered or disordered arrangement) on ion diffusion behavior is fundamental to enhancing EDLC's performance. However, in the past, the diverse and uncontrollable intrinsic microporous structure of physically or chemically activated carbons has made it impossible to precisely investigate the relations between mesoporous textures and ion diffusion behavior.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pore Packing Defects in 2-D Ordered Mesoporous Carbons on Ionic Transport

et al. 2006

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Ordered mesoporous materials show great importance in energy, environmental, and chemical engineering. The diffusion of guest species in mesoporous networks plays an important role in these applications, especially for energy storage, such as supercapacitors based on ordered mesoporous carbons (OMCs). The ion diffusion behavior in two different 2-D hexagonal OMCs was investigated by using cyclic voltametry and electrochemical impedance spectroscopy. In addition, transmission electron microscopy, small-angle X-ray diffraction, and nitrogen cryosorption methods were used to study the pore structure variations of these two OMCs. It was found that, for the OMC with defective pore channels (termed as pore packing defects), the gravimetric capacitance was greatly decayed when the voltage scan rate was increased. The experimental results suggest that, for the ion diffusion in 2-D hexagonal OMCs with similar mesopore size distribution, the pore packing defect is a dominant dynamic factor.

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Supercapacitors Based on Carbon Nanomaterials

Obreja

2015

Carbon Nanomaterials for Advanced Energy Systems

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Supercapacitor electrodes from new ordered porous carbon materials obtained by a templating procedure

Cited by 173 publications

References 14 publications

Performance of templated mesoporous carbons in supercapacitors

Performance of templated mesoporous carbons in supercapacitors

Effect of Pore Packing Defects in 2-D Ordered Mesoporous Carbons on Ionic Transport

Supercapacitors Based on Carbon Nanomaterials

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