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The Impact of Ni Species Nature on Low‐Temperature CO2 Methanation Over CeZrOx/Ni Catalysts.

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Title: The Impact of Ni Species Nature on Low‐Temperature CO2 Methanation Over CeZrOx/Ni Catalysts.
Authors: Guo, Jiawei1,2 (AUTHOR), Yang, Jinhai1 (AUTHOR), Song, Yan3,4 (AUTHOR), Luo, Jing1 (AUTHOR) luojing@sxicc.ac.cn, Zhao, Ning1 (AUTHOR) zhaoning@sxicc.ac.cn, Xiao, Fukui1 (AUTHOR) xiaofk@sxicc.ac.cn
Source: ChemCatChem. 1/15/2026, Vol. 18 Issue 1, p1-12. 12p.
Subjects: Nickel compounds, Nickel catalysts, Catalytic activity, Carbon oxides, Carbon dioxide, Low temperature engineering
Abstract: The efficacy of hydrogen activation by Ni species is a critical determinant of the catalytic performance in CO2 methanation. Herein, the nature of Ni species in CeZrOx/Ni was modulated by altering the calcination atmosphere. The CeZrOx/Ni─O demonstrated excellent low‐temperature methanation activity, achieving a CO2 conversion of 94.3% at 225°C. This value is 5.8 times higher than that of the CeZrOx/Ni─N. The characterization results indicated that Ni species formed in oxygen‐containing atmospheres exhibited high dispersion, which facilitated the formation of Ni–MOx interfaces and thereby promoted the activation of CO2 and H2. In contrast, under oxygen‐free conditions, Ni species formed a strong interaction with oxygen atoms from CeZrOx, which suppressed the activation of H2. In situ DRIFT spectra demonstrated that the reaction involved dual pathways, namely the formate pathway and the CO pathway. The abundant Ni–O–M interfaces substantially enhanced CO2 adsorption and conversion to formate species, thereby establishing the formate pathway as dominant. [ABSTRACT FROM AUTHOR]
Copyright of ChemCatChem is the property of Wiley-Blackwell 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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DbLabel: Engineering Source
An: 190936654
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: The Impact of Ni Species Nature on Low‐Temperature CO<subscript>2</subscript> Methanation Over CeZrO<subscript>x</subscript>/Ni Catalysts.
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  Data: <searchLink fieldCode="AR" term="%22Guo%2C+Jiawei%22">Guo, Jiawei</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Jinhai%22">Yang, Jinhai</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Yan%22">Song, Yan</searchLink><relatesTo>3,4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Luo%2C+Jing%22">Luo, Jing</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> luojing@sxicc.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Ning%22">Zhao, Ning</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> zhaoning@sxicc.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Xiao%2C+Fukui%22">Xiao, Fukui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> xiaofk@sxicc.ac.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22ChemCatChem%22">ChemCatChem</searchLink>. 1/15/2026, Vol. 18 Issue 1, p1-12. 12p.
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  Data: <searchLink fieldCode="DE" term="%22Nickel+compounds%22">Nickel compounds</searchLink><br /><searchLink fieldCode="DE" term="%22Nickel+catalysts%22">Nickel catalysts</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+oxides%22">Carbon oxides</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide%22">Carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Low+temperature+engineering%22">Low temperature engineering</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: The efficacy of hydrogen activation by Ni species is a critical determinant of the catalytic performance in CO2 methanation. Herein, the nature of Ni species in CeZrOx/Ni was modulated by altering the calcination atmosphere. The CeZrOx/Ni─O demonstrated excellent low‐temperature methanation activity, achieving a CO2 conversion of 94.3% at 225°C. This value is 5.8 times higher than that of the CeZrOx/Ni─N. The characterization results indicated that Ni species formed in oxygen‐containing atmospheres exhibited high dispersion, which facilitated the formation of Ni–MOx interfaces and thereby promoted the activation of CO2 and H2. In contrast, under oxygen‐free conditions, Ni species formed a strong interaction with oxygen atoms from CeZrOx, which suppressed the activation of H2. In situ DRIFT spectra demonstrated that the reaction involved dual pathways, namely the formate pathway and the CO pathway. The abundant Ni–O–M interfaces substantially enhanced CO2 adsorption and conversion to formate species, thereby establishing the formate pathway as dominant. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of ChemCatChem is the property of Wiley-Blackwell 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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        Value: 10.1002/cctc.202501727
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      – Code: eng
        Text: English
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        PageCount: 12
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      – SubjectFull: Nickel compounds
        Type: general
      – SubjectFull: Nickel catalysts
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Carbon oxides
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      – SubjectFull: Carbon dioxide
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      – SubjectFull: Low temperature engineering
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      – TitleFull: The Impact of Ni Species Nature on Low‐Temperature CO2 Methanation Over CeZrOx/Ni Catalysts.
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            NameFull: Guo, Jiawei
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            NameFull: Yang, Jinhai
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              Text: 1/15/2026
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              Y: 2026
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