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铈锆固溶体负载LaCoO_3催化碳烟的性能和表征 被引量:2

Catalytic activity of ceria-zirconia solid solution-supported LaCoO_3 on soot and characterization
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摘要 用柠檬酸法制备了铈锆固溶体负载不同量LaCoO3的催化剂。用热重法测试了催化剂样品对碳烟的催化活性。采用程序升温还原法(H2-TPR)、BET、X-射线衍射仪(XRD)和X-射线光电子能谱仪(XPS)对催化剂进行了测试。结果表明,铈锆固溶体表面形成了稳定的LaCoO3钙钛矿相结构;负载量为30%LaCoO3的催化剂具有最高的催化活性,起燃温度降到530℃;催化剂的催化活性与催化剂还原峰强度以及催化剂表面氧物种OII的含量紧密相关。 Ceria-zirconia solid solution-supported LaCoO3 catalysts were prepared by citric method.The catalytic activity of the catalysts on soot was tested by thermogravimetry(TG).All catalysts were investigated by techniques such as temperature-programmed reduction(H2-TPR),BET surface area,X-ray diffraction(XRD) and X-Ray photoelectron spectroscopy(XPS).Characterization results showed that stable perovskite phase was formed on ceria-zirconia solid solution.The catalyst with 30% LaCoO3(weight) was most activated with the ignition temperature of 530℃.The catalytic activity of the catalysts on soot was related to surface OII content and reducible peak area of catalysts.
出处 《环境工程学报》 CAS CSCD 北大核心 2010年第10期2296-2300,共5页 Chinese Journal of Environmental Engineering
基金 广东省社会发展攻关计划项目(2302950B)
关键词 铈锆固溶体 LACOO3 负载 碳烟 ceria-zirconia solid solutions LaCoO3 loading soot
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  • 1Lucio Forni, Rossetti I. Catalytic combustion of hydrocarbons over perovskites. Applied Catalysis B: Environmental, 2002, 38(1) : 29 -37.
  • 2Runduo Zhang, Adrian Villanueva, Houshang Alamdari. Cu-and Pd-substituted nanoscale Fe-based perovskites for selective catalytic reduction of NO by propene. Journal of Catalysis, 2006,237(2) : 368 - 380.
  • 3Tatsumi Ishihara, Makoto Ando, Kenji Sada. Direct decomposition of NO into N2 and O2 over La(Ba) Mn(In) O3 perovskite oxide. Journal of Catalysis, 2003, 220( 1 ) : 104 -114.
  • 4Alifanti M. , Kirchnerova J. , Delmon B. Effect of substitution by cerium on the activity of LaMnO3 perovskite in methane eombustion. Applied Catalysis A: General, 2003, 245(2) :231 -243.
  • 5Hirohisa Tanaka, Makoto Misono. Advances in designing perovskite catalysts. Current Opinion in Solid State and Materials Science, 2001, 5 (2) : 381 - 387.
  • 6Alifanti M., Blangenois N., Florea M. Supported Cobased perovskites as catalysts for total oxidation of methane. Applied Catalysis A : General, 2005, 280 (2) : 255 - 265.
  • 7Zwinkels M. , Haussner O. , Jaras S. Preparation and characterization of LaCrO3 and Cr2O3 methane combustion catalysts supported on LaAl11 O18-and Al2O3 -coated monoliths. Catalysis Today, 1999, 47(1 -d): 73-82.
  • 8Cimino S. , Pirone R. , Lisi L. Methane combustion on perovskites - based structured catalysts. Catalysis Today, 2000,59(1 -2) : 19 -31.
  • 9Debora Fino, Nunzio Russo, Guido Saracco. The role of superficial oxygen in some perovskites for the catalytic combustion of soot. Journal of Catalysis, 2003, 217(2) : 367-375.
  • 10Ruiqin Tan, Yongfa Zhu. Poisoning mechanism of perovskite LaCoO3 catalyst by organophosphorous gas. Applied Catalysis B: Environmental, 2005, 58( 1 -2): 61 -68.

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