| 选择性催化还原NO_x的V_2O_5/TiO_2催化剂特性研究 |
| |
| 引用本文： | 曲虹霞,钟秦.选择性催化还原NO_x的V_2O_5/TiO_2催化剂特性研究[J].环境科学与技术,2004,27(6):23-24. |
| |
| 作者姓名： | 曲虹霞 钟秦 |
| |
| 作者单位： | 南京理工大学化工学院,南京,210094 |
| |
| 摘 要： | 采用浸渍法制备了V2 O5/TiO2 催化剂 ,研究了浸渍液和催化剂的红外光谱。利用XRD研究了催化剂中V2 O5的含量和晶相情况 ,V2 O5在催化剂载体表面呈单层分布 ,单层分布实验阈值为 7% ;利用程序升温 (TPD)法研究了NH3在催化剂表面上的脱附 ,起峰温度为40 9K ,峰顶温度为 487K ,出现一个化学脱附峰
|
| 关 键 词： | 脱氮 XRD 脱附 单层分布 |
| 文章编号： | 1003-6504(2004)06-0023-03 |
| 修稿时间： | 2003年11月10 |
Characterizations of V2O5/TiO2 Catalysts for Selective Catalytic Reduction of NOX with NH3 |
| |
| QU Hong-xia,ZHONG Qin.Characterizations of V2O5/TiO2 Catalysts for Selective Catalytic Reduction of NOX with NH3[J].Environmental Science and Technology,2004,27(6):23-24. |
| |
| Authors: | QU Hong-xia ZHONG Qin |
| |
| Abstract: | V_2O_5/TiO_2 is prepared by impregnation method and IR spectra of impregnating agents and catalysts are studied. Through XRD the crystalline state of catalysts and the content of TiO_2 in catalysts are investigated. It is found that TiO_2 distributes monolayer on supporter and threshold of monolayer distribution is measured to be 7%(by weight). Furthermore, through Thermal Programmatic Desorption(TPD) desorption of NH_3 on catalysts is studied, and the curve showes only one chemical desorption peak which starts at 409K and reaches the top at 487K. |
| |
| Keywords: | denitrification XRD desorption monolayer distribution |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
