高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (3): 503.

• 研究论文 • 上一篇    下一篇

La1-xCexSrNiO4(0≤x≤0.7)的合成、表征及NOx分解催化性能的研究

朱君江, 肖德海, 李静, 杨向光, 吴越   

  1. 中国科学院长春应用化学研究所材料与器件实验室,长春 130022
  • 收稿日期:2004-04-16 出版日期:2005-03-10 发布日期:2005-03-10
  • 通讯作者: 杨向光(1962年出生),男,博士,研究员,博士生导师,从事环境催化研究.E-mail:xgyang@ciac.j.lcn E-mail:xgyang@ciac.j.lcn
  • 基金资助:

    国家自然科学基金(批准号:20177022);国家“八六三”计划(批准号:2001AA324060)资助.

Synthesis, Characterization and Catalytic Performence of La1-xCexSrNiO4(0≤x≤0.7) in NOx Decomposition

ZHU Jun-Jiang, XIAO De-Hai, LI Jing, YANG Xiang-Guang, WU Yue   

  1. Laboratory of Material and Device, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, China
  • Received:2004-04-16 Online:2005-03-10 Published:2005-03-10

摘要: 采用柠檬酸法合成了一系列含Ce的LA1-xCexSrNiO4,发现Ce在A位的取代量能够达到30%.大量Ce取代La后,不仅改善了无氧条件下对NO分解的活性,还提高了LaSrNiO4在有氧条件下的催化活性.在体积分数为6.0%的O2存在下,La0.7Ce0.3SrNiO4对NO分解比活性高达1.58μmol/(s·m2)(1123K),表明LA1-xCexSrNiO4是一种很有潜力的NO消除催化剂.

关键词: 铈, LA1-xCexSrNiO4, NO分解

Abstract: A series of La1-xCexSrNiO4(0≤x≤0.3) oxides were synthesized through the citric method. It was found that the content of Ce in A-site of La1-xCexSrNiO4 could reach 30%. When La was partly replaced by Ce in La0.7Ce0.3SrNiO4, the catalytic activity of NO decomposition was obviously improved not only in the absence of oxygen, but also in the presence of oxygen. The activity of La0.7Ce0.3SrNiO4 in NO decomposition reached 42.2%(1 123 K)in the presence of 6.0%O2, which indicated that La1-xCexSrNiO4 was a potential catalyst for NO removal.

Key words: Ce, La 1-xCexSrNiO4, NO decomposition

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