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Preparation of MnO2 decorated Co3Fe1Ox powder/monolithic catalyst with improved catalytic activity for toluene oxidation.

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Title: Preparation of MnO2 decorated Co3Fe1Ox powder/monolithic catalyst with improved catalytic activity for toluene oxidation.
Authors: Xue, Tianshan1 (AUTHOR), Li, Renna1 (AUTHOR), Zhang, Zhang2 (AUTHOR), Gao, Yanshan1 (AUTHOR) yanshan_gao@bjfu.edu.cn, Wang, Qiang1 (AUTHOR) qiang.wang.ox@gmail.com
Source: Journal of Environmental Sciences (Elsevier). Oct2020, Vol. 96, p194-203. 10p.
Subjects: Toluene, Catalysts, Catalytic activity, Iron oxidation, Base catalysts, Water vapor
Abstract: In this paper, KMnO 4 was used to pre-treat Co 3 Fe-layered double hydroxides (LDH) precursor to prepare MnO 2 decorated Co 3 Fe 1 O x catalyst. The toluene oxidation performance of the catalyst was investigated systematically. The optimized 0.1MnCF-LDO catalyst exhibited the best catalytic performance, and the temperatures of 50% and 90% toluene conversion (T 50 and T 90) were 218 and 243°C, respectively. The apparent activation energy (E a) was 31.6 kJ/mol. The characterization results showed that the pre-redox reaction by KMnO 4 could increase the specific surface area, Co3+ species amount and oxygen defect concentration of the catalyst, which are the main reason of the improved toluene catalytic activity. Besides, this method was also applied to enhance toluene oxidation of iron mesh based monolithic catalyst. The 0.1MnCF-LDO/Iron mesh (IM) catalyst showed a 90% toluene conversion at around 316°C which was much lower than that of without MnO 2 addition (359°C). In addition, the water resistant of all the catalysts was studied as well, all the samples showed relatively good water resistance. The toluene conversion still remained to be over >80% even in the presence of 10 vol.% water vapor. Image, graphical abstract [ABSTRACT FROM AUTHOR]
Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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Header DbId: egs
DbLabel: Engineering Source
An: 145207229
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: Preparation of MnO2 decorated Co3Fe1Ox powder/monolithic catalyst with improved catalytic activity for toluene oxidation.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Xue%2C+Tianshan%22">Xue, Tianshan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Renna%22">Li, Renna</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhang%22">Zhang, Zhang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gao%2C+Yanshan%22">Gao, Yanshan</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> yanshan_gao@bjfu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Qiang%22">Wang, Qiang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> qiang.wang.ox@gmail.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Environmental+Sciences+%28Elsevier%29%22">Journal of Environmental Sciences (Elsevier)</searchLink>. Oct2020, Vol. 96, p194-203. 10p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Toluene%22">Toluene</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Iron+oxidation%22">Iron oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Base+catalysts%22">Base catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Water+vapor%22">Water vapor</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: In this paper, KMnO 4 was used to pre-treat Co 3 Fe-layered double hydroxides (LDH) precursor to prepare MnO 2 decorated Co 3 Fe 1 O x catalyst. The toluene oxidation performance of the catalyst was investigated systematically. The optimized 0.1MnCF-LDO catalyst exhibited the best catalytic performance, and the temperatures of 50% and 90% toluene conversion (T 50 and T 90) were 218 and 243°C, respectively. The apparent activation energy (E a) was 31.6 kJ/mol. The characterization results showed that the pre-redox reaction by KMnO 4 could increase the specific surface area, Co3+ species amount and oxygen defect concentration of the catalyst, which are the main reason of the improved toluene catalytic activity. Besides, this method was also applied to enhance toluene oxidation of iron mesh based monolithic catalyst. The 0.1MnCF-LDO/Iron mesh (IM) catalyst showed a 90% toluene conversion at around 316°C which was much lower than that of without MnO 2 addition (359°C). In addition, the water resistant of all the catalysts was studied as well, all the samples showed relatively good water resistance. The toluene conversion still remained to be over >80% even in the presence of 10 vol.% water vapor. Image, graphical abstract [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Journal of Environmental Sciences (Elsevier) is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1016/j.jes.2020.05.002
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      – Code: eng
        Text: English
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        PageCount: 10
        StartPage: 194
    Subjects:
      – SubjectFull: Toluene
        Type: general
      – SubjectFull: Catalysts
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Iron oxidation
        Type: general
      – SubjectFull: Base catalysts
        Type: general
      – SubjectFull: Water vapor
        Type: general
    Titles:
      – TitleFull: Preparation of MnO2 decorated Co3Fe1Ox powder/monolithic catalyst with improved catalytic activity for toluene oxidation.
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            NameFull: Xue, Tianshan
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            NameFull: Li, Renna
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            NameFull: Zhang, Zhang
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            NameFull: Gao, Yanshan
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            NameFull: Wang, Qiang
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            – D: 01
              M: 10
              Text: Oct2020
              Type: published
              Y: 2020
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              Value: 96
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            – TitleFull: Journal of Environmental Sciences (Elsevier)
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