NO reduction on Cu-ZSM-5 studied by EXAFS

Y. J. Huang, H. Paul Wang, Jyh Fu Lee

研究成果: Article同行評審

9 引文 斯高帕斯(Scopus)

摘要

Extended x-ray absorption fine structural (EXAFS) spectroscopy was used to study the nature of the Cu species in ZSM-5 involved in catalytic reduction of NO. The EXAFS data indicate that about 2.5 nearest oxygen atoms surrounding the center atom Cu with a Cu-O bond length of 1.95 Å in the oxidized Cu-ZSM-5 catalyst. Reduction of the catalyst in hydrogen at 573 K leads to the formation of Cu-Cu (2.53 Å) bonds. The coordination number (CN) of the Cu-Cu species in the reduced catalyst is 5.7. Over 90% of NO can be reduced to N2 at 573 K effected by the Cu-ZSM-5 catalyst with the CN of the Cu-O bonding being 1.01.

原文English
頁(從 - 到)1347-1356
頁數10
期刊Chemosphere
39
發行號8
DOIs
出版狀態Published - 1999 10月

All Science Journal Classification (ASJC) codes

  • 環境工程
  • 環境化學
  • 化學 (全部)
  • 污染
  • 健康、毒理學和誘變

指紋

深入研究「NO reduction on Cu-ZSM-5 studied by EXAFS」主題。共同形成了獨特的指紋。

引用此