Copper-zirconia catalysts for NOCO reactions
作者： Yasuaki Okamoto , Hideki Gotoh
DOI: 10.1016/S0920-5861(96)00198-8
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摘要: Abstract Copper-zirconia catalysts have shown high activities and selectivities for a NOCO reaction at low temperature. Highly active Cu(L) species are produced by replacing the terminal OH groups of ZrO2 surface assigned to atomically dispersed Cu species. The deactivation took place in two steps; relatively rapid activity loss subsequent slow deterioration. Treatments with 1% NO regenerated deactivated ZrO 2 much lower temperature than treatments 5% O2. addition Fe was found dramatically improve catalytic performances; selectivity N2 stability. mechanisms reaction, deactivation, regeneration proposed.
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