高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 288.

• Chemistry in Materials Sciences • 上一篇    下一篇

Catalytic Reduction of Nitric Oxide on SiO2/AlO3-supported Transition Metal Catalysts

LI Wei-Bin, YING Gao-Xiang, ZHANG Yu   

  1. Department of Environmental Engineering and Sciences, Tsinghua University, Beijing 100084
  • 出版日期:2000-12-31 发布日期:2000-12-31
  • 基金资助:

    The work was supported by Cao-Guang-Biao High-tech Foundation of Tsinghua Univesity and National Science Foundation of China (NO. 29907003).

Catalytic Reduction of Nitric Oxide on SiO2/AlO3-supported Transition Metal Catalysts

LI Wei-Bin, YING Gao-Xiang, ZHANG Yu   

  1. Department of Environmental Engineering and Sciences, Tsinghua University, Beijing 100084
  • Online:2000-12-31 Published:2000-12-31
  • Supported by:

    The work was supported by Cao-Guang-Biao High-tech Foundation of Tsinghua Univesity and National Science Foundation of China (NO. 29907003).

摘要:

Selective reduction of nitric oxide in pressence of oxygen is one of the major challenges in the automobile exhaust after-treatment for lean-bum gasoline engines and diesel engines. Besides Cu-ZSM-5, Pt and Pd based noble metal catalysts, alumina-supported silver catalysts show high activities on NOx conversion to nitrogen[1,2]. However, NO conversion activities over silver on binary oxides have rarely been studied in detail[3], although copper on SiO2-Al2O3 catalyst was reported to have a high activity[4] Here, NOx reduction activities on SiO2-Al2O3-supported transition metal catalysts prepared by sol-gel method was investigated.

Abstract:

Selective reduction of nitric oxide in pressence of oxygen is one of the major challenges in the automobile exhaust after-treatment for lean-bum gasoline engines and diesel engines. Besides Cu-ZSM-5, Pt and Pd based noble metal catalysts, alumina-supported silver catalysts show high activities on NOx conversion to nitrogen[1,2]. However, NO conversion activities over silver on binary oxides have rarely been studied in detail[3], although copper on SiO2-Al2O3 catalyst was reported to have a high activity[4] Here, NOx reduction activities on SiO2-Al2O3-supported transition metal catalysts prepared by sol-gel method was investigated.

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