NO(x) decomposition, storage and reduction over novel mixed oxide catalysts derived from hydrotalcite-like compounds

J Colloid Interface Sci. 2009 May 15;333(2):423-30. doi: 10.1016/j.jcis.2009.02.022. Epub 2009 Feb 12.

Abstract

Effective control and removal of nitrogen oxides (NO(x)) emission from vehicles exhausts under lean-burn condition is one of the most important targets in scientific research of environmental protection. A comprehensive introduction of NO(x) storage and reduction (NSR), the most promising lean-NO(x) control technology, is given including the sum-up of NSR materials, catalytic activity and related reaction mechanisms. Emphasis is put on the novel multifunctional NSR catalysts, derived from hydrotalcite-like compounds, with characteristic of simultaneous NO(x) strorage-decomposition-reduction. Finally, future research directions in the area of lean-NO(x) control based on mixed oxide catalysts derived from hydrotalcite-like materials is also proposed.

Publication types

  • Research Support, Non-U.S. Gov't
  • Review

MeSH terms

  • Aluminum Hydroxide / chemistry*
  • Catalysis
  • Magnesium Hydroxide / chemistry*
  • Nitrogen Oxides / chemistry*
  • Oxidation-Reduction
  • Vehicle Emissions

Substances

  • Nitrogen Oxides
  • Vehicle Emissions
  • hydrotalcite
  • Aluminum Hydroxide
  • Magnesium Hydroxide