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In situ preparation of halogen modified silver nanocatalysts for efficient co-catalysis of CO2 reduction and glycerol oxidation.

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Title: In situ preparation of halogen modified silver nanocatalysts for efficient co-catalysis of CO2 reduction and glycerol oxidation.
Authors: Xin, Shixian1 (AUTHOR), Cui, Shuo1 (AUTHOR), Cao, Yutao1 (AUTHOR), Wu, Ying1 (AUTHOR), Tang, Tingting1 (AUTHOR), Cui, Wei1 (AUTHOR), Li, Zengxi1,2 (AUTHOR) lizengxi@ucas.ac.cn, Zhao, Hong1,3 (AUTHOR) hongzhao@ucas.ac.cn
Source: Electrochimica Acta. Jun2025, Vol. 524, pN.PAG-N.PAG. 1p.
Subjects: Activation energy, Nanoparticles, Density functional theory, Carbon dioxide, Energy consumption
Abstract: Electrocatalytic CO 2 reduction (ECR) to valuable feedstocks is considered as one of the most promising CO 2 resource utilization strategies. However, the challenge of balancing high Faradaic efficiency (FE) and large current density (j) of reduction products still remains. Herein, halogen anions X− (X = Cl, Br, I) modified Ag (Ag-X) nanocatalysts are constructed by in situ reduction of AgX nanoparticles under ECR conditions, which possess favorable ECR to CO performance. Among them, Ag-Cl exhibited up to 94.12 % FE CO and a j CO as high as 15.06 mA cm−2 at −0.75 V vs. RHE in KHCO 3 electrolyte. Particularly, a higher FE CO (98.96 %) is obtained in an ionic liquid (IL) electrolyte, and the FE CO could maintain over 90.00 % in a wide potential range. Density functional theory (DFT) calculations reveal that the halogen on the Ag nanocatalysts surface reduces the free energy barrier for the formation of essential intermediate *COOH, facilitating the ECR process. Notably, a two-electrode system is employed to generate value-added products, while energy consumption is reduced by 40.5 % through coupled anodic glycerol oxidation reaction (GOR) at a current density of 10 mA cm−2. [ABSTRACT FROM AUTHOR]
Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science 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: 184196863
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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Items – Name: Title
  Label: Title
  Group: Ti
  Data: In situ preparation of halogen modified silver nanocatalysts for efficient co-catalysis of CO2 reduction and glycerol oxidation.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Xin%2C+Shixian%22">Xin, Shixian</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cui%2C+Shuo%22">Cui, Shuo</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cao%2C+Yutao%22">Cao, Yutao</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wu%2C+Ying%22">Wu, Ying</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tang%2C+Tingting%22">Tang, Tingting</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Cui%2C+Wei%22">Cui, Wei</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Zengxi%22">Li, Zengxi</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> lizengxi@ucas.ac.cn</i><br /><searchLink fieldCode="AR" term="%22Zhao%2C+Hong%22">Zhao, Hong</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> hongzhao@ucas.ac.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Jun2025, Vol. 524, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink><br /><searchLink fieldCode="DE" term="%22Nanoparticles%22">Nanoparticles</searchLink><br /><searchLink fieldCode="DE" term="%22Density+functional+theory%22">Density functional theory</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide%22">Carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Energy+consumption%22">Energy consumption</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Electrocatalytic CO 2 reduction (ECR) to valuable feedstocks is considered as one of the most promising CO 2 resource utilization strategies. However, the challenge of balancing high Faradaic efficiency (FE) and large current density (j) of reduction products still remains. Herein, halogen anions X− (X = Cl, Br, I) modified Ag (Ag-X) nanocatalysts are constructed by in situ reduction of AgX nanoparticles under ECR conditions, which possess favorable ECR to CO performance. Among them, Ag-Cl exhibited up to 94.12 % FE CO and a j CO as high as 15.06 mA cm−2 at −0.75 V vs. RHE in KHCO 3 electrolyte. Particularly, a higher FE CO (98.96 %) is obtained in an ionic liquid (IL) electrolyte, and the FE CO could maintain over 90.00 % in a wide potential range. Density functional theory (DFT) calculations reveal that the halogen on the Ag nanocatalysts surface reduces the free energy barrier for the formation of essential intermediate *COOH, facilitating the ECR process. Notably, a two-electrode system is employed to generate value-added products, while energy consumption is reduced by 40.5 % through coupled anodic glycerol oxidation reaction (GOR) at a current density of 10 mA cm−2. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Electrochimica Acta is the property of Pergamon Press - An Imprint of Elsevier Science 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:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.electacta.2025.146003
    Languages:
      – Code: eng
        Text: English
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        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Activation energy
        Type: general
      – SubjectFull: Nanoparticles
        Type: general
      – SubjectFull: Density functional theory
        Type: general
      – SubjectFull: Carbon dioxide
        Type: general
      – SubjectFull: Energy consumption
        Type: general
    Titles:
      – TitleFull: In situ preparation of halogen modified silver nanocatalysts for efficient co-catalysis of CO2 reduction and glycerol oxidation.
        Type: main
  BibRelationships:
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      – PersonEntity:
          Name:
            NameFull: Xin, Shixian
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            NameFull: Cui, Shuo
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            NameFull: Cao, Yutao
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            NameFull: Wu, Ying
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            NameFull: Tang, Tingting
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            NameFull: Cui, Wei
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            NameFull: Li, Zengxi
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          Dates:
            – D: 01
              M: 06
              Text: Jun2025
              Type: published
              Y: 2025
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              Value: 00134686
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              Value: 524
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            – TitleFull: Electrochimica Acta
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