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Influence of pretreatment atmospheres on the activity of Au/CeO2 catalyst for low-temperature CO oxidation

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Title: Influence of pretreatment atmospheres on the activity of Au/CeO2 catalyst for low-temperature CO oxidation
Authors: Zhang, Rui-Rui, Ren, Li-Hui, Lu, An-Hui, Li, Wen-Cui wencuili@dlut.edu.cn
Source: Catalysis Communications. Oct2011, Vol. 13 Issue 1, p18-21. 4p.
Subjects: Carbon monoxide, Oxidation, Catalysts, Cerium oxides, Cryochemistry, Precipitation (Chemistry), Chemical structure, Nitrogen absorption & adsorption
Abstract: Abstract: Au/CeO2 catalyst was prepared via a deposition–precipitation method and further pretreated in different atmospheres prior to CO oxidation. A reductive atmosphere pretreatment slightly improved the low-temperature activity of Au/CeO2. The greatest activity was achieved when Au/CeO2 catalyst was subjected to an oxidative atmosphere followed by a reductive atmosphere pretreatment. Analysis using XRD, TEM and nitrogen sorption measurement showed that pretreatment retains the crystal phase, morphology and pore structure of CeO2. However, there was a change in the interaction between gold species and CeO2 support, as revealed by H2-TPR measurement. [Copyright &y& Elsevier]
Copyright of Catalysis Communications 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.)
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DbLabel: Engineering Source
An: 63982119
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  Data: Influence of pretreatment atmospheres on the activity of Au/CeO<subscript>2</subscript> catalyst for low-temperature CO oxidation
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  Data: <searchLink fieldCode="AR" term="%22Zhang%2C+Rui-Rui%22">Zhang, Rui-Rui</searchLink><br /><searchLink fieldCode="AR" term="%22Ren%2C+Li-Hui%22">Ren, Li-Hui</searchLink><br /><searchLink fieldCode="AR" term="%22Lu%2C+An-Hui%22">Lu, An-Hui</searchLink><br /><searchLink fieldCode="AR" term="%22Li%2C+Wen-Cui%22">Li, Wen-Cui</searchLink><i> wencuili@dlut.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22Catalysis+Communications%22">Catalysis Communications</searchLink>. Oct2011, Vol. 13 Issue 1, p18-21. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Carbon+monoxide%22">Carbon monoxide</searchLink><br /><searchLink fieldCode="DE" term="%22Oxidation%22">Oxidation</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysts%22">Catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Cerium+oxides%22">Cerium oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Cryochemistry%22">Cryochemistry</searchLink><br /><searchLink fieldCode="DE" term="%22Precipitation+%28Chemistry%29%22">Precipitation (Chemistry)</searchLink><br /><searchLink fieldCode="DE" term="%22Chemical+structure%22">Chemical structure</searchLink><br /><searchLink fieldCode="DE" term="%22Nitrogen+absorption+%26+adsorption%22">Nitrogen absorption & adsorption</searchLink>
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  Label: Abstract
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  Data: Abstract: Au/CeO2 catalyst was prepared via a deposition–precipitation method and further pretreated in different atmospheres prior to CO oxidation. A reductive atmosphere pretreatment slightly improved the low-temperature activity of Au/CeO2. The greatest activity was achieved when Au/CeO2 catalyst was subjected to an oxidative atmosphere followed by a reductive atmosphere pretreatment. Analysis using XRD, TEM and nitrogen sorption measurement showed that pretreatment retains the crystal phase, morphology and pore structure of CeO2. However, there was a change in the interaction between gold species and CeO2 support, as revealed by H2-TPR measurement. [Copyright &y& Elsevier]
– Name: AbstractSuppliedCopyright
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  Group: Ab
  Data: <i>Copyright of Catalysis Communications 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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      – Type: doi
        Value: 10.1016/j.catcom.2011.06.013
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      – Code: eng
        Text: English
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      – SubjectFull: Carbon monoxide
        Type: general
      – SubjectFull: Oxidation
        Type: general
      – SubjectFull: Catalysts
        Type: general
      – SubjectFull: Cerium oxides
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      – SubjectFull: Cryochemistry
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      – SubjectFull: Precipitation (Chemistry)
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      – SubjectFull: Chemical structure
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      – SubjectFull: Nitrogen absorption & adsorption
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      – TitleFull: Influence of pretreatment atmospheres on the activity of Au/CeO2 catalyst for low-temperature CO oxidation
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            NameFull: Lu, An-Hui
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              Text: Oct2011
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