Modulate the superficial structure of La2Ce2O7 catalyst with anchoring CuOx species for the selective catalytic oxidation of NH3

Xiangchen Kong,Zhenguo Li,Yuankai Shao,Xiaoning Ren,Kaixiang Li,Hanming Wu,Congjie Lv, Cheng Lv,Shengli Zhu

Journal of Materials Science & Technology（2022）

引用 9|浏览3

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摘要

•The abundant intrinsic defects in La2Ce2O7 pyrochlore are beneficial to NH3-SCO reaction.•Electrostatic adsorption improves the dispersion and stability of anchoring cuox species.•The mass-transfer efficiency of surface free o is promoted by the [Ce-O-Cu] connection.•The anchoring cuox species enhance the low-temperature activity of La2Ce2O7 catalytic.

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关键词

La2Ce2O7 catalyst,Selective catalytic oxidation,CuOx species,Ammonia slip

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