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Please use this identifier to cite or link to this item: http://hdl.handle.net/11133/1685

Title: 檜から作ったナノポーラスカーボン : 細孔構造の制御と電気二重層キャパシタへの応用
Other Titles: Nanoporous Carbons from Cypress : Control of pore structure and application to electric double layer capacitor
Authors: 伊藤, 栄記
豊田, 昌宏
稲垣, 道夫
ITO, Eiki
TOYODA, Masahiro
INAGAKI, Michio
Keywords: Cypress charcoal
microporous
mesoporous
electric double layer capacitors
Issue Date: 7-Oct-2008
Publisher: 愛知工業大学
Abstract: Nanoporous carbons were successfully prepared from cypress chips under a flow of super-heated steam. The cypress charcoals thus obtained were used as electrodes of electric double layer capacitor with 1 M H_2SO_4 electrolyte. Pore structure in cypress charcoals could be controlled by changing carbonization conditions (temperature of super-heated steam, supplying and transferring rates of chips). Under the condition with 15 kg/h supply of chips and 4.7 rpm rotation of transferring paddles, mesopore-rich charcoals with external surface area of about 500 m^2/g, which was comparable with microporous surface area, were obtained at 800~870℃ and micropore-rich charcoals with microporous surface area of about 900 m^2/g were obtained above 900℃. Electric double layer capacitor constructed from these cypress charcoals had relatively high capacitance, about 190 F/g with the current density of 50 mA/g and about 140 F/g with 1000 mA/g, which were comparable with the reference activated carbon. The performance rating defined by C_<1000>/C_<50> was in a range of 0.65~0.85, which was higher than the reference activated carbon.
URI: http://hdl.handle.net/11133/1685
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