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題名 | In-Situ FTIR Studies of the Acidity and Catalytic Properties of Pt/Zeolites=鉑/沸石的酸性與催化性質--原位紅外線光譜研究 |
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作者 | 簡淑華; 楊紹佑; 曾永寬; 陳修維; Chien, Shu-hua; Yang, Shaw-yo; Tseng, Yung-kuan; Chen, Hsiu-wei; |
期刊 | 中央研究院化學研究所集刊 |
出版日期 | 19970300 |
卷期 | 44 1997.03[民86.03] |
頁次 | 頁35-44 |
分類號 | 346.2 |
語文 | eng |
關鍵詞 | 鉑/沸石; 酸性; 催化性質; 原位紅外線光譜; |
英文摘要 | 我們以 啶吸附及其程溫脫附之原位紅外線光譜研究沸石的酸性。結果顯示沸石 的前處理對沸石的酸性本質沒有顯著的影響,但高溫抽氣處理則會產稍多量的路易斯酸。含 浸鉑的沸石酸性與該沸石類似,但酸性強度略為提升。 以原位紅外線光譜偵測在鉑 / 沸石 盤片上的正己烷異構化反應,顯示沸石的布忍斯特酸與路易斯酸性點皆參與反應,且路易斯 酸性點皆參與反應,且路易斯酸性點有利於二甲基丁烷產的生成。 in the IR intensity and yielded more Lewis acid sites. Impregnation of Pt on zeolites seemed to result in stronger acid strength, but apparently no significant differences in the nature and the number of acid sites. In-situ FTIR studies of n-hexane isomerization reveal that both Bronsted and Lewis acid sites are responsible for n-hexane isomerization, and the Lewis acid sites are related to the high selectivity of dimethylbutanes. |
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