Low temperature selective catalytic reduction of NOx with NH3 using perovskit-type oxide catalysts

Lishia Lai*, Hsun-Ling Bai, Shawyi Yan, Jungnan Hsu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


A series of LaCoxMn(1-x) O3 perovskite-type oxide catalysts were prepared and studied for the catalytic reduction of NO. The effect of different B-site substitution ratios on the catalyst physicochemical properties was studied by series of characterization techniques. The reactivity of perovskite-type mixed oxides catalyst for low temperature SCR of NO with NH3 was investigated. LaCo0.2Mn0.8 O3exhibited the best deNOx activity among all tested samples, which yielded 95% NO conversion at 150°C and space velocity of 70,000/hr. The deNOx activity decreased with increasing temperature in the range of 150°-350°C. For the perovskite catalysts, the chemical property seemed to be more important than the physical property. The amounts of adsorbed NH3 and NO played a major role in the SCR reaction in the low temperature range. This is an abstract of a paper presented at the AWMA's 107th Annual Conference & Exhibition (Long Beach, CA 6/24-27/2014).

Original languageEnglish
Title of host publication107th Air and Waste Management Association Annual Conference and Exhibition, ACE 2014
PublisherAir and Waste Management Association
Number of pages6
ISBN (Electronic)9781634397322
StatePublished - 1 Jan 2014

Publication series

NameProceedings of the Air and Waste Management Association's Annual Conference and Exhibition, AWMA
ISSN (Print)1052-6102


  • Low temperature
  • Nitrogen oxides
  • Perovskite
  • Selective catalytic reduction


Dive into the research topics of 'Low temperature selective catalytic reduction of NOx with NH3 using perovskit-type oxide catalysts'. Together they form a unique fingerprint.

Cite this