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TiO 2 -modified Ag–alumina was studied as an NO X trapping material with the aim of improving the removal of NO X from lean-burn exhaust at low temperatures. This trapping material, in which both Ag and TiO 2 were finely dispersed throughout the alumina support on a nanometre scale, effectively adsorbed NO X at temperatures as low as 150°C. The TiO 2 ...
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