| Ni系ABO_3和A_2BO_4型复合氧化物的固态物化性质与NO+CO反应的催化性能 |
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| 引用本文： | 赵震,杨向光,王学中,吴越.Ni系ABO_3和A_2BO_4型复合氧化物的固态物化性质与NO+CO反应的催化性能[J].催化学报,1998(1). |
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| 作者姓名： | 赵震 杨向光 王学中 吴越 |
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| 作者单位： | 中国科学院长春应用化学研究所 |
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| 摘 要： | 合成了具有钙钛石ＡＢＯ３结构的ＬａＮｉＯ３和Ｌａ０．１Ｓｒ０．９ＮｉＯ３及具有类钙钛石Ａ２ＢＯ４结构的Ｌａ２ＮｉＯ４和ＬａＳｒＮｉＯ４等四个Ｎｉ系复合氧化物催化剂．研究了该系列复合氧化物的晶体结构，缺陷结构，Ｂ位Ｎｉ离子的价态，氧化还原性能及对ＮＯ分子的吸附性能等固态物化性质．考察了它们对ＮＯ＋ＣＯ反应的催化性能，并与ＮＯ直接分解进行了对比研究．探讨了结构因素对Ｎｉ系复合氧化物催化剂的固态物化性质及催化性能的影响．提出了ＮＯ＋ＣＯ反应的反应机理．
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| 关 键 词： | 钙钛石型氧化物，固态物化性质，一氧化氮，还原，一氧化碳 |
PHYSICO CHEMICAL PROPERTIES AND CATALYTIC BEHAVIOR FOR NO REDUCTION BY CO OF Ni BASED MIXED OXIDE CATALYSTS WITH PEROVSKITE (ABO 3) AND PEROVSKITE LIKE (A 2BO 4) STRUCTURE |
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| Zhao Zhen,Yang Xiangguang,Wang Xuezhong,Wu Yue.PHYSICO CHEMICAL PROPERTIES AND CATALYTIC BEHAVIOR FOR NO REDUCTION BY CO OF Ni BASED MIXED OXIDE CATALYSTS WITH PEROVSKITE (ABO 3) AND PEROVSKITE LIKE (A 2BO 4) STRUCTURE[J].Chinese Journal of Catalysis,1998(1). |
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| Authors: | Zhao Zhen Yang Xiangguang Wang Xuezhong Wu Yue |
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| Abstract: | The mixed oxides LaNiO 3, La 0.1 Sr 0.9 NiO 3, La 2NiO 4 and LaSrNiO 4 with perovskite (ABO 3) and related (A 2BO 4) structure were prepared. Their solid state physico chemical properties, including the crystal structure, defect structure, valence state of B site ion, nonstoichiometric oxygen, adsorption of NO and properties of oxidation and reduction etc, were investigated. The catalytic behavior for NO reduction by CO over these mixed oxides was measured and the mechanism of NO+CO reaction was proposed. Moreover a comparison of the catalytic behavior for NO+CO with that of NO decomposition over these mixed oxides was made. The effect of structural factors on the physico chemical properties and catalytic behavior for NO reduction by CO over these oxides was discussed. |
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| Keywords: | Perovskite type oxide Solid physico chemical property Nitric oxide Reduction Carbon monoxide |
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