SELECTIVE CARBON MONOXIDE OXIDATION IN H-2-RICH GAS STREAM OVER Co3O4/CeO2/ZrO2, Ag/CeO2/ZrO2, AND MnO2/CeO2/ZrO2 CATALYSTS

DEREKAYA F., Akinbingol H. B.

CHEMICAL ENGINEERING COMMUNICATIONS, cilt.201, sa.6, ss.737-750, 2014 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 201 Sayı: 6
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/00986445.2013.788499
  • Dergi Adı: CHEMICAL ENGINEERING COMMUNICATIONS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.737-750
  • Gazi Üniversitesi Adresli: Evet

Özet

Activity and selectivity of selective CO oxidation in an H-2-rich gas stream over Co3O4/CeO2/ZrO2, Ag/CeO2/ZrO2, and MnO2/CeO2/ZrO2 catalysts were studied. Effects of the metaloxide types and metaloxide molar ratios were investigated. XRD, SEM, and N-2 physisorption techniques were used to characterize the catalysts. All catalysts showed mesoporous structure. The best activity was obtained from 80/10/10 Co3O4/CeO2/ZrO2 catalyst, which resulted in 90% CO conversion at 200 degrees C and selectivity greater than 80% at 125 degrees C. Activity of the Co3O4/CeO2/ZrO2 catalyst increased with increase in Co3O4 molar ratio.