Comparison of the nickel addition patterns on the catalytic performances of LaCoO₃ for low-temperature CO oxidation

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• 作者：Hailong Li^a ; Ke Yu^b ; Chao Wan^c ; Junjiang Zhu^a ; ^b ; ^{ciaczjj@163.com} ; Xiu Li^c ; Shuo Tong^c ; Yanxi Zhao^a ; ^{zhaoyanxi@126.com}
• 关键词：LaCoO3 ; NiO ; Impregnation ; Synergistic effect ; CO oxidation
• 刊名：Catalysis Today
• 出版年：2017
• 出版时间：1 March 2017
• 年：2017
• 卷：281
• 期：part_P3
• 页码：534-541
• 全文大小：2874 K
• 卷排序：281

文摘

Effect of nickel addition patterns on the catalytic performance of LaCoO3 for CO oxidation is investigated. A synergistic effect is induced between NiO and LaCoO3 for Ni/LaCoO3, leading to enhanced activity for CO oxidation. The impregnation of NiO improves both the reducibility and the amount of active sites of LaCoO3. The 10% Ni/LaCoO3 catalyst shows 100% CO conversion at 200 °C and no appreciable loss of activity is observed within 32 h.