Catalytic Decomposition of Nitric Oxide by LaCoO3 Nano-particles Prepared by Rotary CVD

Peng Xu, Rong Tu, Song Zhang, Meijun Yang, Qizhong Li, Takashi Goto, Lianmeng Zhang

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Catalytic direct decomposition of NO by perovskite-type catalysts has attracted much attention for the various possible components and the unique structure. LaCoO3 nanoparticles were precipitated on α-Al2O3 micro powders by rotary chemical vapor deposition (rotary CVD) and its catalytic performance for the decomposition of NO was investigated. LaCoO3 nano-particles with 100 nm in average diameter and 1.5% in mass were uniformly dispersed on α-Al2O3 powder. The conversion of NO increased with increasing temperature from 400 to 950 °C, and reached 28.7% at 950 °C. The gas velocity of transformed NO on LaCoO3 nano-particles catalyst per mass unit was 7.7 mL/(g min), showing a good catalytic activity over the calculated results of pure catalysts. After five times of aging performance experiments, the NO conversion kept the same value, showing a good aging performance and thermal stability.

Original languageEnglish
Pages (from-to)368-374
Number of pages7
JournalJournal Wuhan University of Technology, Materials Science Edition
Volume33
Issue number2
DOIs
Publication statusPublished - 2018 Apr 1

Keywords

  • LaCoO nano-particles
  • NO decomposition
  • catalyst
  • rotary chemical vapor deposition

ASJC Scopus subject areas

  • Materials Science(all)

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