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    Please use this identifier to cite or link to this item: http://ir.cnu.edu.tw/handle/310902800/27001

    標題: Synthesis and characterization of Co/SiO2 as catalyst catalyze hydrogen generation
    作者: Su, Chia-Chi
    Shih, Yu-Jen
    Huang, Yao-Hui
    Lu, Ming-Chun
    貢獻者: 環境資源管理系
    關鍵字: Catalyst
    Hydrogen generation
    Sodium borohydride
    Porous SiO2
    日期: 2011-11
    上傳時間: 2013-10-16 16:57:11 (UTC+8)
    出版者: Elsevier
    摘要: Novel composites of porous SiO2-LP and SiO2-HP supports are synthesized by the silica–polyethylene glycol monooleyl ether surfactant self-assembly method to obtain a large surface area. Cobalt is immobilized in the supports by incipient wetness impregnation. A stable and active Co/SiO2 catalyst is examined using FE-SEM, BET and XRD. Further, the catalyst is tested for catalytic hydrolysis of alkaline sodium borohydride (NaBH4) solution: the rate of hydrogen generation is found to increase with increasing cobalt loading of the Co/SiO2 catalyst. The hydrogen generation rates increase dramatically when the temperature is increased from 17 to 40 °C. The highest hydrogen generation rates of Co/SiO2 catalyst are obtained at 2513 mL min− 1 g− 1 in 20 mL of 5 wt.% NaBH4 solution containing 5 wt.% NaOH at 40 °C.
    關聯: Materials Letters, 65(21-22), pp.3212-3215
    Appears in Collections:[環境資源管理系(所)] 期刊論文

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