物理化学学报 >> 2009, Vol. 25 >> Issue (06): 1033-1039.doi: 10.3866/PKU.WHXB20090604

研究论文 上一篇    下一篇

碱土金属对钴铈复合氧化物催化剂催化N2O分解的影响

刘畅, 薛莉, 贺泓   

  1. 中国科学院生态环境研究中心, 北京 100085
  • 收稿日期:2009-01-12 修回日期:2009-03-02 发布日期:2009-06-05
  • 通讯作者: 贺泓 E-mail:honghe@rcees.ac.cn

Influence of Alkaline Earth Metals on Cobalt-Cerium Composite Oxide Catalysts for N2O Decomposition

LIU Chang, XUE Li, HE Hong   

  1. Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, P. R. China
  • Received:2009-01-12 Revised:2009-03-02 Published:2009-06-05
  • Contact: HE Hong E-mail:honghe@rcees.ac.cn

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摘要：

采用低温柠檬酸络合法制备了添加不同碱土金属的钴铈复合氧化物(Ce/Co摩尔比为0.05)催化剂, 考察了其催化N2O分解的活性. 结果表明, 碱土金属对钴铈催化剂催化N2O分解的活性有明显促进作用, 助催化效果递变顺序为Mg

关键词: N2O催化分解, 碱土金属, 四氧化三钴, 二氧化铈, 复合氧化物催化剂

Abstract:

Catalysts of cobalt-cerium composite oxide doped with series of alkaline earth metals were prepared using the citrate method. Results of catalytic activity tests showed that the addition of alkaline earth metals enhanced the efficiency of N2O decomposition according to the following order: Mg

Key words: N2O decomposition, Alkaline earth metal, Co3O4, CeO2, Composite oxide catalyst