Investigation of the NO removal by CO on CuO–CoOx binary metal oxides supported on Ce0.67Zr0.33O2
作者： Lianjun Liu , Yu Chen , Lihui Dong , Jie Zhu , Haiqin Wan
DOI: 10.1016/J.APCATB.2009.02.021
关键词:
摘要: Abstract Binary metal oxides CuO–CoOx supported on Ce0.67Zr0.33O2 (denoted as CZ, thereafter) catalysts had been characterized by XRD, LRS, UV-DRS, IR, TPR, in situ FT-IR and activity test for the removal of NO CO. Results suggested that (1) both copper oxide cobalt (loadings ≤0.5 0.32 mmol/100 m2 respectively) were highly dispersed CZ support; (2) addition species promoted reduction oxide, improved due to strong interaction between active which was dependent preparation procedure content; (3) CO over these went through different mechanisms at low high temperatures, related change during reaction process; (4) introduction altered adsorption type catalysts, oxidized dimers into ionic NO3−1. A possible mechanism proposed discuss NO + CO based all results.
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