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稀土钙钛矿型氧化物催化剂上CO低温氧化性能研究 被引量：1

Investigation on Rare Earth Perovskite-Type Oxide Catalysts for CO Low-Temperature Oxidation
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摘要 研究了稀土钙钛矿型氧化物La1-xA′xCo1-yBiyO3-δ(A′z=Ba0.2,Sr0.4;y=0,0.2)催化剂上一氧化碳低温氧化反应.XRD结果表明这4个催化剂均为单相立方钙钛矿结构.18O2和CO脉冲实验结果表明Sr掺杂催化剂的晶格氧活动度和反应性比Ba掺杂的强.TPR结果表明Bi的掺杂降低了催化剂的还原温度,提高了催化活性,且Sr取代部分La比Ba取代部分La更有利于增加催化活性.我们认为,Sr.(或Ba)和Bi的掺杂引起的催化活性的提高与氧空位浓度的增加,Co和Bi离子氧化-还原循环的改善以及晶格氧活动度的增加密切相关.
作者 戴洪兴 何洪 李佩珩 孙继红 訾学红
机构地区 北京工业大学环境与能源工程学院应用化学系环境催化研究室
出处 《中国稀土学报》 CAS CSCD 北大核心 2004年第z2期22-25,共4页 Journal of the Chinese Society of Rare Earths
基金 北京工业大学博士科研启动基金(KZ0505200301)资助项目
关键词 稀土钙钛矿型氧化物催化剂 一氧化碳氧化 氧空位 氧同位素交换 晶格氧活动度
分类号 O643.3 [理学—物理化学]
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参考文献5

  • 1[1]Teju'a L G, Fierro J L G. Properties and Applications of Perovskite-Type Oxides [M]. New York; Marcel Dekker, 1993.
  • 2[2]Peйa M A, Fierro J L G. Chemical structures and performance of perovskite oxides [J]. Chem. Rev. 2001, 101 (7): 1981.
  • 3[3]Oku M, Kimura J, Omori M, et al. Determination of the oxidation states of bismuth and copper in superconductor bismuth calcium strontium copper oxide by oxidation-reduction titration [J]. Fresenius Z. Anal. Chem, 1989, 335: 382.
  • 4[4]Falcon H, Martinez-Lope M J, Alonso J A, et al. Defect LaCuO3-δ(δ = 0. 05-0. 45) Perovskites. Bulk and Surface Structures and Their Relevance in CO Oxidation [J]. Appl. CataL B.2000, 26: 131.
  • 5[5]Jiang A R, Peng Y, Zhou Q W, et al. The catalytic oxidation of carbon monoxide on superconductor Ba2YCu3O7-8 [J]. Catal.Lett, 1989, 3 (2): 235.

同被引文献16

  • 1萨仁图雅,胡瑞生,白雅琴.稀土A-Ce-O催化剂的合成及性能研究[J].中国稀土学报,2006,24(z2):58-61. 被引量：3
  • 2彭小圣,林赫,上官文峰,黄震.K和Cu部分取代对LaMnO_3钙钛矿型催化剂同时去除NO_x和碳烟的影响[J].催化学报,2006,27(9):767-771. 被引量：16
  • 3Kaspar J, Fornasiero P, Graziani M. Use of CeO2-based oxides in the three-way catalysis [J]. Catalysis Today, 1999, 50 (2) : 285.
  • 4Zhu J J, Arne Thomas. Perovskite-type mixed oxides as catalytic material for NO removal [ J]. Applied Catalysis B: Environmental, 2009, 92 (3-4) : 225.
  • 5Raj S, Padhi H C, Raychaudhury P. Valence electronic structure of Mn in undoped and doped lanthanum manganites from relative K X-ray intensity studies [ J]. NucLear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 2001, 174(3) : 344.
  • 6Dai H X, He H, Li P H. The relationship of structural defectredox property-catalytic performance of perovskites and their related compounds for CO and NOx removal [ J ]. Catalysis Today, 2004, 90 (3) : 231.
  • 7Belessi V C, Bakasb T V, Costa C N. Synergistic effects of crystal phases and mixed valences in La-Sr-Ce-Fe-O mixed oxidic/perovskitic solids on their catalytic activity for the NO + CO reaction [ J ]. Applied Catalysis B, Environmental, 2000, 28 : 13.
  • 8Belessi V C, Costa C N, Bakasb T V. Catalytic behavior of La-Sr-Ce-Fe-O mixed oxidic/per ovskitic systems for the NO + CO and NO + CH4 + 02 ( lean-NOx ) reactions [J]. Catalysis Today, 2000, 59: 347.
  • 9Giannakas A E, Leontiou A A, Ladavos A K. Characterization and catalytic investigation of NO + CO reaction on perovskites of the general formula LaxM1-xFeO3 ( M = Sr and/or Ce) prepared via a reverse micelles microemulsion route [J]. Applied Catalysis A, General, 2006, 309: 254.
  • 10Teraoka Y, Nii H, Kagawa S. Influence of the simultaneous substitution of Cu and Ru in the perovskite-type (La, Sr)MO3 (M = Al, Mn, Fe, Co) on the catalytic activity for CO oxidation and CO-NO reactions [J]. Applied Catalysis A : General, 2000, 194-195 : 35.

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中国稀土学报
2004年 第z2期

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