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As oxygen is one of the essential reactants in the standard SCR reactions, the ability of restoring and releasing oxygen is an important factor to determine the SCR activity of the catalyst. Ceria catalysts present an innate prospect in SCR reaction because of the facilitated redox cycles from Ce4+ to Ce3+. In the present study, zirconium phosphate @ Ce0.75Z0.25O2 (ZP/CZ) catalysts were pre-treated...
Different amounts of sulfates were introduced to NiO–CeO 2 –ZrO 2 catalyst by a citric-aided sol–gel method for NO x reduction with ammonia. The catalysts were characterized by X-ray diffraction, Raman, H 2 temperature programmed-reduction, NH 3 temperature-programmed oxidation, DRIFTS of NH 3 /NO adsorption, oxygen storage capacity and activity measurements...
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