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作者:

Wang, Yuan (Wang, Yuan.) | Arandiyan, Hamidreza (Arandiyan, Hamidreza.) | Liu, Yuxi (Liu, Yuxi.) | Liang, Yijing (Liang, Yijing.) | Peng, Yue (Peng, Yue.) | Bartlett, Stuart (Bartlett, Stuart.) | Dai, Hongxing (Dai, Hongxing.) (学者:戴洪兴) | Rostamnia, Sadegh (Rostamnia, Sadegh.) | Li, Junhua (Li, Junhua.)

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EI Scopus SCIE

摘要:

The rational design of low-cost transition metal catalysts that exhibit high activity and selectivity may be the most significantly investigated in heterogeneous catalysis. In this study, Co3-xMnxO4 (x = 0.75, 1.0, and 1.5) mixed metal oxides were successfully synthesized by a controlled template-free autoclave strategy and studied for toluene oxidation. It is found that the Co-rich sample showed markedly enhanced activity and the 3D dandelion-like Co2.25Mn0.75O4 catalyst exhibited in the highest toluene oxidation rate (8.9 mu mol/(g(cat)s)) and a 100% toluene conversion at 239 degrees C. In situ DRIFTS study indicates that toluene was sequentially oxidized to benzyl radical, benzaldehyde, benzene, oxalic acid, and finally to CO2 and H2O. The interaction between Co and Mn, in conjunction with the high concentration of surface oxygen species and rich surface oxygen vacancies, reasonably explains the elevated catalytic activity and thermal stability for toluene oxidation over 3D flower-like Co3-xMnxO4 spinel catalysts.

关键词:

oxidation of toluene scalable synthesis 3D flower-like catalyst Co3-xMnxO4 spinel template-free strategy

作者机构:

  • [ 1 ] [Wang, Yuan]Univ New South Wales, Sch Chem Engn, Particles & Catalysis Res Grp, Sydney, NSW 2052, Australia
  • [ 2 ] [Arandiyan, Hamidreza]Univ New South Wales, Sch Chem Engn, Particles & Catalysis Res Grp, Sydney, NSW 2052, Australia
  • [ 3 ] [Arandiyan, Hamidreza]Univ Sydney, Sch Chem, Lab Adv Catalysis Sustainabil, Sydney, NSW 2006, Australia
  • [ 4 ] [Bartlett, Stuart]Univ Sydney, Sch Chem, Lab Adv Catalysis Sustainabil, Sydney, NSW 2006, Australia
  • [ 5 ] [Liu, Yuxi]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 6 ] [Liang, Yijing]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 7 ] [Dai, Hongxing]Beijing Univ Technol, Coll Environm & Energy Engn, Beijing Key Lab Green Catalysis & Separat, Lab Catalysis Chem & Nanosci, Beijing 100124, Peoples R China
  • [ 8 ] [Peng, Yue]Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
  • [ 9 ] [Li, Junhua]Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
  • [ 10 ] [Rostamnia, Sadegh]Univ Maragheh, Fac Sci, Dept Chem, ONG, POB 55181-83111, Maragheh, Iran

通讯作者信息:

  • [Arandiyan, Hamidreza]Univ New South Wales, Sch Chem Engn, Particles & Catalysis Res Grp, Sydney, NSW 2052, Australia;;[Arandiyan, Hamidreza]Univ Sydney, Sch Chem, Lab Adv Catalysis Sustainabil, Sydney, NSW 2006, Australia

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来源 :

CHEMCATCHEM

ISSN: 1867-3880

年份: 2018

期: 16

卷: 10

页码: 3429-3434

4 . 5 0 0

JCR@2022

ESI学科: CHEMISTRY;

ESI高被引阀值:192

被引次数:

WoS核心集被引频次: 144

SCOPUS被引频次: 146

ESI高被引论文在榜: 0 展开所有

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