A comprehensive coverage of literature on the design and application of cla
y-derived catalysts for the removal of nitrogen oxides (deNOx), encompassin
g both the cationic and the anionic clay materials is given. Emphasis is pu
t on the versatility of clays, which renders them excellent materials for a
n intelligent catalyst design. DeNOx processes discussed include SCR by amm
onia and hydrocarbons, reduction of NO with CO and decomposition of N2O.