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EDLC from activated carbon derived from black liquor
http://hdl.handle.net/10087/6245
http://hdl.handle.net/10087/6245df537038-b398-4bc0-b7c1-27a61ae92bbf
| 名前 / ファイル | ライセンス | アクション |
|---|---|---|
e-k0420-3.pdf (1.4 MB)
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| Item type | 学位論文 / Thesis or Dissertation(1) | |||||||
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| 公開日 | 2011-09-12 | |||||||
| 著者 |
趙, 小燕
× 趙, 小燕
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| タイトル | ||||||||
| タイトル | EDLC from activated carbon derived from black liquor | |||||||
| 言語 | ||||||||
| 言語 | eng | |||||||
| その他のタイトル | ||||||||
| その他のタイトル | 黒液から活性炭製造と電気二重層キャパシタの応用 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 黒液 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 活性炭 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 製造 | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | 電気二重層キャパシタ | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | EDLC | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | activated carbon | |||||||
| キーワード | ||||||||
| 主題Scheme | Other | |||||||
| 主題 | black liquor | |||||||
| 資源タイプ | ||||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_db06 | |||||||
| 資源タイプ | doctoral thesis | |||||||
| アクセス権 | ||||||||
| アクセス権 | open access | |||||||
| アクセス権URI | http://purl.org/coar/access_right/c_abf2 | |||||||
| 著者(ヨミ) | ||||||||
| 姓名 | チョウ, ショウエン | |||||||
| 著者別名 | ||||||||
| 姓名 | Zhao, Xiao-Yan | |||||||
| 抄録 | ||||||||
| 内容記述タイプ | Abstract | |||||||
| 内容記述 | Using black liquor as a porous carbon precursor is considered as an effective approach\nfor value-added us e of black li quor. In additio n, black li quor contains high content of alkali\nmetals (Na, K, etc.), which are effectively used to improve the activation process.\nTherefbre, preparation of activated carbons (ACs) directly from black liquor may reduce\nthe cost not only fbr lignin-recycling, but also fbr activating agents economizing. Electric\ndouble-layer capacitors (EDLCs) are very attractive as a potential energy storage system\nbecause of their high power density, quick charge-discharge rate, free maintenance,\nlong-life operation, and environmentally fiTiendly energy technology. EDLCs with activated\ncarbon electrodes are known to have higher capacity fbr energy storage compared with\nconventional condensers. However, the application of ACs derived from black liquor fbr\nthe preparation of EDLCs has not been reported previously.\n In chapter 2, high surTface area ACs were prepared by chemical activation of black\nliquor with potassium hydroxide (KOH), sodium hydroxide (NaOH) and potassium\ncarbonate (K2C03). The influence of carbonization temperature, activation temperature,\nholding time and impregnation ratio of activating agent to char on the porous\ncharacteristics of the ACs was investigate d. The re sults show th at the surTface area and pore\nvolume of AC s, which were estimated by BET methods, were achieved as hi gh as 3 0 89 m2\ng'i and 1.76 cm3 g'i fbur times 1arger than a commercial AC from charcoal (944 m2 g'i),\nunder the condition of an carbonization temperature of 600 OC, an activation temperature of\n900 OC, a holding time of 2 h and an impregnation ratio (KOH/Char) of 2. In addition, the influence of alkali metals (K and Na) existing in black liquor on activation was also\nexamined. It was found that the alkali metals react as an activating agent in the process of\nactivation, thereby economizing the amount ofactivating agent used in this study to a high\ndegree.\n In chapter 3, the perTfbrmance of ACs derived fiTom black liquor as EDLCs was\ncharacterized. The gravimetric capacitance is fbund to be approximately proportional to the\nBET surTface area, and the AC with the maximum gravimetric capacitance of41.4 F g'i and\nthe maximum volumetric capacitance of 16.6 F cm'3 was developed under the preparing\ncondition of an carbonization of 600 OC, an activation temperature of 600 OC, a holding\ntime of 2 h and an impregnation ratio (KOH/Char) of 2. In addition, the results obtained in\nthis study confirm that capacitance of ACs from black liquor not only depends on surface\narea, but also on pore size. This study provides an effective approach to carry out the\nvalue-added utiliz ation of black liquor. | |||||||
| 内容記述 | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | 学位記番号：工博甲420 | |||||||
| 書誌情報 | p. 101, 発行日 2011-03-23 | |||||||
| フォーマット | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | application/pdf | |||||||
| 著者版フラグ | ||||||||
| 出版タイプ | VoR | |||||||
| 出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||||
| 出版者 | ||||||||
| 出版者 | 群馬大学工学研究科 | |||||||
| 資源タイプ | ||||||||
| 内容記述タイプ | Other | |||||||
| 内容記述 | Thesis or Dissertation | |||||||
| 学位名 | ||||||||
| 学位名 | 博士（工学） | |||||||
| 学位授与機関 | ||||||||
| 学位授与機関名 | 群馬大学 | |||||||
| 学位授与年月日 | ||||||||
| 学位授与年月日 | 2011-03-23 | |||||||
| 学位授与番号 | ||||||||
| 学位授与番号 | 甲第420号 | |||||||
| 更新日 | ||||||||
| 2019-12-05 | ||||||||
