頁籤選單縮合
題名 | Enhanced Low-temperature NH₃-SCR Activity over Ce-Ti Oxide Catalysts by Hydrochloric Acid Treatment |
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作者 | Jiang, Ye; Shi, Weiyun; Lu, Mingyuan; Li, Qingyi; Lai, Chengzhen; Gao, Wenqian; Yang, Lin; Yang, Zhengda; | 書刊名 | Aerosol and Air Quality Research |
卷期 | 19:11 2019.11[民108.11] |
頁次 | 頁2381-2386 |
分類號 | 445.63 |
關鍵詞 | NH₃-SCR; Ce-Ti oxide; Hydrochloric acid treatment; Activity; |
語文 | 英文(English) |
英文摘要 | The effect of hydrochloric acid treatment on Ce-Ti oxides was investigated for selective catalytic reduction of NO with NH3. The results showed that hydrochloric acid treatment had a positive effect on the low-temperature activity of Ce-Ti oxides. The improved activity of Ce-Ti oxides could be attributed to the increase in the concentration of Ce as well as the amount of Ce3+ and chemisorbed oxygen on the catalyst surface. In addition, the enhanced Lewis acidity could improve NH3 absorption, and was also a key factor to enhance the low-temperature activity of Ce-Ti oxides. |
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