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作者:

Ji, Kemeng (Ji, Kemeng.) | Dai, Hongxing (Dai, Hongxing.) (学者:戴洪兴) | Deng, Jiguang (Deng, Jiguang.) | Song, Liyun (Song, Liyun.) | Xie, Shaohua (Xie, Shaohua.) | Han, Wen (Han, Wen.)

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摘要:

Porous LaFeO3 (LFO) samples with surface areas of 15-26 m(2)/g and orthorhombic structures were prepared via a glucose-assisted hydrothermal route. Physicochemical properties of the materials were characterized by means of a number of techniques, and their catalytic activities were evaluated for toluene combustion. It is found that the sample (LFO-170) derived at a hydrothermal temperature of 170 degrees C possessed the highest surface area and surface oxygen concentration and the best low-temperature reducibility. Among the LFO samples, the LFO-170 sample showed the best performance for toluene combustion, giving the T-10%, T-50%, and T-90% of 180, 250, and 270 degrees C at space velocity=20,000 mL/(g h), respectively. The apparent activation energies of the LFO samples were 50-55 kJ/mol. We believe that the high surface area and surface oxygen concentration and good low-temperature reducibility were responsible for the good catalytic performance of the LFO-170 sample. (C) 2012 Elsevier Inc. All rights reserved.

关键词:

Hydrothermal preparation method Lanthanum ferrite Perovskite-type oxide Porous material Toluene combustion

作者机构:

  • [ 1 ] [Ji, Kemeng]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 2 ] [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 3 ] [Deng, Jiguang]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 4 ] [Song, Liyun]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 5 ] [Xie, Shaohua]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 6 ] [Han, Wen]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China

通讯作者信息:

  • 戴洪兴

    [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Dept Chem & Chem Engn, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China

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来源 :

JOURNAL OF SOLID STATE CHEMISTRY

ISSN: 0022-4596

年份: 2013

卷: 199

页码: 164-170

3 . 3 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:211

JCR分区:2

中科院分区:3

被引次数:

WoS核心集被引频次: 31

SCOPUS被引频次: 39

ESI高被引论文在榜: 0 展开所有

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