Characterization of porous carbons with high resolution αs-analysis and low temperature magnetic susceptibility

Kaneko, Katsumi; Ishii, Chiaki; Kanoh, Hirofumi; Hanzawa, Yohko; Setoyama, Norihiko; Suzuki, Toshio

doi:10.1016/s0001-8686(98)00050-5

Cited by 169 publications

(119 citation statements)

References 62 publications

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“…Carbon xerogels can be activated with gases such as air, steam, and CO 2 to greatly increase the surface area and to modify their surface. 23,24,26 This means that the capacitance characteristics of CXF can be further improved, which is a future research topic.…”

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confidence: 99%

High capacitance carbon-based xerogel film produced without critical drying

Tao

Endo

Ohsawa

et al. 2008

Applied Physics Letters

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We report the production of carbon-based xerogel film without the need for supercritical drying. Xerogel samples were characterized with field emission scanning electron microscopy, nitrogen adsorption/desorption at 77 K, Raman spectroscopy, thermogravimetric analysis, and electrical conductivity and cyclic voltammetry measurements. Experimental results reveal that the film is largely crack free and homogeneous in thickness, and, importantly, has high surface area, large nanopore volume, and an excellent performance for electrical charge storage-both per unit mass and unit volume. These results indicate that the film has potential applications for electrical energy storage devices.

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confidence: 99%

High capacitance carbon-based xerogel film produced without critical drying

Tao

Endo

Ohsawa

et al. 2008

Applied Physics Letters

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“…The a s -plots give information about the total surface area, micropore volume, and external surface area. [12,24,25] The mesopore volume was calculated by subtracting the micropore volume from the total pore volume, which is determined from the adsorbed N 2 amount at P/P 0 = 0.98. [6,12] The HNO 3 treatment remarkably increases the total surface area, external surface area, and micropore volume.…”

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confidence: 99%

Highly Ultramicroporous Single‐Walled Carbon Nanohorn Assemblies

et al. 2005

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“…On the other hand, the isotherms of SWCNT/Tol and SWCNT/Met are close to IUPAC Type I, indicating the presence of predominant micropores. The specific surface area (SSA) determined by the  s method (Kaneko et al, 1998) is shown in Table 2. The SSAs of SWCNT/Tol and SWCNT/Met (750 m 2 g -1 and 760 m 2 g -1 ) are considerably decreased by the sonication treatment, indicating the formation of the bundle structure with interstitial sites which are not accessible by N 2 molecules.…”

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confidence: 99%