Nâng cao hoạt tính xúc tác của perovskit La0,4Sr0,6CoO3 đối với phản ứng DeNOx bằng cách pha tạp ion bạc.


Authors

  • Trần Thị Minh Nguyệt
  • Nguyễn Quang Huấn
  • Hà Phương Thư
  • Nguyễn Doãn Thai
  • Nguyễn Quốc Trung
  • Trần Quế Chi
  • Đỗ Thế Chân
  • Trần Văn Quí
DOI: https://doi.org/10.15625/1971

Abstract

Mixed oxides of La, Sr, Co and Ag were prepared by sol-gel method using acid citrat as solvent. Two kinds of obtained mixed oxides A = La1-xSrxCoO3+La2O3+SrO+Co3O4+ SrCoOx and B = A+Ag were characterizied by X-Ray Diffraction analysis (XRD), Field Emision Scanning Electron Microscope (FESEM), Energy Dispersive X-ray Spectroscopy (EDS). Their catalytic activity was studied by Temperature Programmed Surface Reaction (TPSR). The results shown that the mixed oxide A exhibits a weak DeNOx activity, but in the addition of a little of metal silver (Ag), the NOx conversion increases remakably from 29.4% (in absence Ag) to 82.4% at 220oC.

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Published

13-08-2012

How to Cite

Nguyệt, T. T. M., Huấn, N. Q., Thư, H. P., Thai, N. D., Trung, N. Q., Chi, T. Q., Chân, Đỗ T., & Quí, T. V. (2012). Nâng cao hoạt tính xúc tác của perovskit La0,4Sr0,6CoO3 đối với phản ứng DeNOx bằng cách pha tạp ion bạc. Vietnam Journal of Chemistry, 48(1). https://doi.org/10.15625/1971

Issue

Vol. 48 No. 1 (2010)

Section

Articles