e-journal
NOx decomposition, storage and reduction over novel mixed oxide catalysts derived from hydrotalcite-like compounds
Abstract.
Effective control and removal of nitrogen oxides (NOx) emission from vehicles exhausts under leanburn
condition is one of the most important targets in scientific research of environmental protection.
A comprehensive introduction of NOx storage and reduction (NSR), the most promising lean-NOx 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 hydrotalcitelike
compounds, with characteristic of simultaneous NOx strorage–decomposition–reduction. Finally,
future research directions in the area of lean-NOx control based on mixed oxide catalysts derived from
hydrotalcite-like materials is also proposed.
Keywords:
NOx abatement
NOx decomposition
NOx storage and reduction
Hydrotalcite-like compounds
Mixed oxide catalysts
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