CuO-CeO2 mixed oxide catalyst for the catalytic decomposition of N2O in the presence of oxygen
CuO-CeO2 mixed oxide catalyst for the catalytic decomposition of N2O in the presence of oxygen
复制标题
CuO-CeO2 混合氧化物催化剂在氧气存在下催化分解 N2O
DOI:
10.1016/j.cattod.2017.05.074
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发表时间:
2017-11
期刊:
影响因子:
5.3
通讯作者:
Haiyan Liu
中科院分区:
文献类型:
--
作者:
Zhiming Liu;Chenxi He;Biaohua Chen;Haiyan Liu
The catalytic decomposition of N2O was investigated over a series of CuO-CeO2mixed oxide catalysts prepared by the hydrothermal method. It was found that CuO-CeO2mixed oxide catalyst exhibited higher activity than pure CuO and CeO2. The co-existence of CuO and CeO2exhibited a synergetic effect, which inhibited the crystallization of the CuO phase, leading to the high surface area. Moreover, the two redox couples (Ce4+/Ce3+and Cu2+/Cu+) formed over CuO-CeO2mixed oxide contribute to the desorption of surface adsorbed oxygen species and thus the regeneration the active sites, which is favorable for the catalytic N2O decomposition to proceed.
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