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作者:

Ye Qing (Ye Qing.) (学者:叶青) | Yan Lina (Yan Lina.) | Huo Feifei (Huo Feifei.) | Wang Haiping (Wang Haiping.) | Cheng Shuiyuan (Cheng Shuiyuan.) (学者:程水源) | Kang Tianfang (Kang Tianfang.) (学者:康天放)

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Scopus SCIE PKU CSCD

摘要:

Fe pillared sodium-modified sepiolite (Fe-NaPILCS) was prepared by intercalation polymerization of iron hydroxyl ions with sodium-treated sepiolite and then calcined at 450 degrees C for 4 h. Cu/Fe-NaPILCS and Cu/Fe-NaSep were prepared by impregnation of Fe-NaPILCS and Fe-NaSep, respectively, with an aqueous solution of Cu-nitrate. These samples were characterized by means of X-ray diffraction (XRD), TGA-DTG, N-2-sorption analysis, H-2-temperature-programmed reduction (TPR), X-ray photoelectron spectroscopy (XPS) techniques and their catalytic performance for the selective catalytic reduction (SCR) of NO by C3H6 were also studied. The results of N-2-desorption/adsorption and TGA-DTG showed that due to pillaring, Fe-NaPILCS revealed much higher surface area, pore volume and thermal stability than that of Sep. According to the result of XRD and XPS, there co-exist Fe3+/Fe2+ and Cu2+/Cu+ and also the strong interaction among Cu, Fe and support over Cu/Fe-NaPILCS and Cu/Fe-NaSep catalysts. H-2-TPR showed that Cu/Fe-NaPILCS possessed high amount of isolated Cu2+ species. Cu/Fe-NaPILCS display more significant activity for selective reduction of NO with C3H6 than that of Cu/Fe-NaSep. This maybe related to its higher surface area, pore volume, better catalytic reduction performance and high amount of isolated Cu2+ species.

关键词:

Cu/Fe-NaPILCS nitric oxides propylene selective catalytic reduction

作者机构:

  • [ 1 ] [Ye Qing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China
  • [ 2 ] [Yan Lina]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China
  • [ 3 ] [Huo Feifei]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China
  • [ 4 ] [Wang Haiping]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China
  • [ 5 ] [Cheng Shuiyuan]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China
  • [ 6 ] [Kang Tianfang]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China

通讯作者信息:

  • 叶青

    [Ye Qing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Environm Sci, Beijing 100124, Peoples R China

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来源 :

ACTA CHIMICA SINICA

ISSN: 0567-7351

年份: 2011

期: 13

卷: 69

页码: 1524-1532

2 . 5 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:252

JCR分区:4

中科院分区:4

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WoS核心集被引频次: 4

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