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題名 | Characteristics of CuO/Sulfated-Al[feaf]O[feb0]and Its Catalytic Activity for Oxidative Decomposition of CH[feb2]and (CH[feb0])[feaf]S[feaf]=CuO/Sulfated-Al[feaf]O[feb0]之特性及其用於甲烷與二硫化二甲基氧化分解反應之催化活性 |
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作者 | 王清輝; 翁鴻山; | 書刊名 | Journal of the Chinese Institute of Chemical Engineers |
卷期 | 29:2 1998.03[民87.03] |
頁次 | 頁121-128 |
分類號 | 346.01 |
關鍵詞 | 甲烷; 二硫化二甲基氧化分解反應; 催化活性; Methane; Dimethyl disulfide; Oxidative decomposition; Copper oxide; Sulfatedalumina; |
語文 | 中文(Chinese) |
中文摘要 | 本研究藉由BET表面積,X射線光電子光譜(XPS),程溫還原(TPR)與氨程溫脫附 (NH□-TPD)分析及活性測試,探討CuO/Sulfated-Al□O□之特性及其用於甲烷與二硫化二 甲基氧化分解反應之催化活性。實驗結果發現CuO/Sulfated-Al□O□觸媒活性比Cu○/ Al□O□及Pt/ Al□O□觸媒為高。由XPS及TPR分析結果得知,CuO/Sulfated-Al□O□觸媒 表面有SO□的存在,且由NH□-TPD分析發現經H□SO□處理的觸媒,其表面酸性有顯著增 加,因此作者認為酸處理是擔體觸媒活性明顯增加之原因。 |
英文摘要 | By performing BET surface area, X-ray photoelectron spectroscopy ( XPS), temperature-programmed reduction (TPR) and ammonia temperature programmed desorption (NH□-TPD) analyses as well as activity test, this study investigated the characteristics of the sulfated-alumina supported CuO (CuO/ sulfated-Al203)catalyst and its activity for the oxidative decomposition of both CH4 and (CH3)2S2. Experimental results indicate that the CuO/sulfated-Al □O□ catalyst exhibited a higher activity than CuO/A1□O□ and Pt/A1□O□. XPS and TPR analyses suggest that it might have the functional group of SO□ which existed on the surface of the CuO/sulfated-Al203 catalyst. The NH□- TPD pattern also reveals that the H□SO□-treatment remarkably enhances the acidity of the catalyst. Therefore, we believe that the substantial increase in activity is attributed primarily to the SO□ group on the catalyst surface. |
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