Journal of the Korean Chemical Society (대한화학회지)

Korean Chemical Society (대한화학회)
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Oxidation of Ethylene over $Ag/{\alpha}-Al_2O_3Ag/SnO_2$

$Ag/{\alpha}-Al_2O_3Ag/SnO_2$ 촉매상에서의 에틸렌 산화반응

  • Jun Ki-Won (Department of Chemistry, Korea Advanced Institute of Science and Technology) ;
  • Chong-Soo Han (Department of Chemistry, Korea Advanced Institute of Science and Technology) ;
  • Hakze Chon (Department of Chemistry, Korea Advanced Institute of Science and Technology)
  • 전기원 (한국과학기술원 화학과) ;
  • 한종수 (한국과학기술원 화학과) ;
  • 전학제 (한국과학기술원 화학과)
  • Published : 1984.04.20
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Abstract

The effects of various supports on the activity and the selectivity for the ethylene oxidation was investigated over$ Ag/{\alpha}-Al_2O_3$ and $Ag/SnO_2$ by Auger, EPR spectroscopy and reaction studies. The results indicate that over $Ag/SnO_2$ catalyst O- chemisorbed on $SnO_2 $participates in the complete oxidation of ethylene lowering the selectivity for the formation of ethylene oxide.

여러가지 함량으로 은을 입힌$ Ag/{\alpha}-Al_2O_3$와 $Ag/SnO_2$상에서의 반응실험과 촉매의 Auger spectra, $SnO_2$에 흡착된 산소의 EPR spectra를 비교하여 담체의 종류가 에틸렌 산화반응의 활성과 선택성에 미치는 영향을 조사하였다. $SnO_2$상에서는 흡착산소중 O-가 반응에 참여하여 ethylene를 완전 산화하는 방향으로 유도하므로써 ethylene oxide 생성의 선택성을 저하시키는 것 같다.

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References

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