View in EDS

Robust catalysis of hierarchically nanoporous gold for CO2 electrochemical reduction.

Saved in:
Bibliographic Details
Title: Robust catalysis of hierarchically nanoporous gold for CO2 electrochemical reduction.
Authors: Yu, Tianshui1 (AUTHOR), Zhou, Xiangji1 (AUTHOR), Chen, Yu1 (AUTHOR), Chen, Jin1 (AUTHOR), Yuan, Songliu1 (AUTHOR), Zhang, Zhen1,2 (AUTHOR) zhangtitanium@hust.edu.cn, Qian, Lihua1 (AUTHOR) lhqian@hust.edu.cn, Li, Song1,3 (AUTHOR) lis@atm.neu.edu.cn
Source: Electrochimica Acta. Jan2023, Vol. 437, pN.PAG-N.PAG. 1p.
Subjects: Electrolytic reduction, Gold, Carbon dioxide, Catalysis, Catalytic activity, Durability
Abstract: • The layer of nanoporous structure created by pulse potential can obtain a high selectivity of CO. • Hierarchically porous structure is an effective structure to improve mass transport. • Hierarchically porous gold exhibits robust durability of specific current density in 22 h CO 2 ER. • Outstanding durability is well related to the conversion of some crystal facets during CO 2 ER. Catalytic activity and durability are crucial parameters of nanoporous gold for CO 2 electrochemical reduction, where multiple protons and electrons are involved. Mass transport within porous channels and active sites onto skeletons surface of nanoporous gold are considered as basic requirements to enhance these comprehensive performances. While the evolution of active site at atomic scale is a remaining issue to understand intrinsic mechanism of the decaying catalysis. In this work, we configure hierarchically nanoporous gold (H NPG) with high Faradaic efficiency for CO conversion of 96%, which results from abundant of step sites and (110) facets. High current density of 0.2 mA/cm2 mainly results from high fraction of active sites onto nanoscale skeletons and high volume of hierarchically nanoporous channels. Besides high activity, the H NPG also exhibits robust durability, which is evidenced by its 22% reduction of specific current density for CO after 22 h CO 2 ER in comparison with 55% reduction of nanoporous gold (NPG) with nanoporous channel. By investigating the detailed feature of surface contour, outstanding durability in the H NPG is well related to the conversion of some crystalline facets with low activity toward (110) facets with high activity during CO 2 ER. This behavior is completely different from the evolution of surface contours in NPG, where step sites and (110) facets partially converse into the other facets with inferior catalysis. Outstanding durability in the H NPG is well related to the conversion of some crystal facets with low activity toward (110) facets with high activity during 22 CO 2 ER as high as 90%. [Display omitted] [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
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 160461728
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Robust catalysis of hierarchically nanoporous gold for CO2 electrochemical reduction.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Yu%2C+Tianshui%22">Yu, Tianshui</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhou%2C+Xiangji%22">Zhou, Xiangji</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Yu%22">Chen, Yu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Chen%2C+Jin%22">Chen, Jin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yuan%2C+Songliu%22">Yuan, Songliu</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhen%22">Zhang, Zhen</searchLink><relatesTo>1,2</relatesTo> (AUTHOR)<i> zhangtitanium@hust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Qian%2C+Lihua%22">Qian, Lihua</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> lhqian@hust.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Song%22">Li, Song</searchLink><relatesTo>1,3</relatesTo> (AUTHOR)<i> lis@atm.neu.edu.cn</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22Electrochimica+Acta%22">Electrochimica Acta</searchLink>. Jan2023, Vol. 437, pN.PAG-N.PAG. 1p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Electrolytic+reduction%22">Electrolytic reduction</searchLink><br /><searchLink fieldCode="DE" term="%22Gold%22">Gold</searchLink><br /><searchLink fieldCode="DE" term="%22Carbon+dioxide%22">Carbon dioxide</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysis%22">Catalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Durability%22">Durability</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: • The layer of nanoporous structure created by pulse potential can obtain a high selectivity of CO. • Hierarchically porous structure is an effective structure to improve mass transport. • Hierarchically porous gold exhibits robust durability of specific current density in 22 h CO 2 ER. • Outstanding durability is well related to the conversion of some crystal facets during CO 2 ER. Catalytic activity and durability are crucial parameters of nanoporous gold for CO 2 electrochemical reduction, where multiple protons and electrons are involved. Mass transport within porous channels and active sites onto skeletons surface of nanoporous gold are considered as basic requirements to enhance these comprehensive performances. While the evolution of active site at atomic scale is a remaining issue to understand intrinsic mechanism of the decaying catalysis. In this work, we configure hierarchically nanoporous gold (H NPG) with high Faradaic efficiency for CO conversion of 96%, which results from abundant of step sites and (110) facets. High current density of 0.2 mA/cm2 mainly results from high fraction of active sites onto nanoscale skeletons and high volume of hierarchically nanoporous channels. Besides high activity, the H NPG also exhibits robust durability, which is evidenced by its 22% reduction of specific current density for CO after 22 h CO 2 ER in comparison with 55% reduction of nanoporous gold (NPG) with nanoporous channel. By investigating the detailed feature of surface contour, outstanding durability in the H NPG is well related to the conversion of some crystalline facets with low activity toward (110) facets with high activity during CO 2 ER. This behavior is completely different from the evolution of surface contours in NPG, where step sites and (110) facets partially converse into the other facets with inferior catalysis. Outstanding durability in the H NPG is well related to the conversion of some crystal facets with low activity toward (110) facets with high activity during 22 CO 2 ER as high as 90%. [Display omitted] [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.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=160461728
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1016/j.electacta.2022.141537
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Electrolytic reduction
        Type: general
      – SubjectFull: Gold
        Type: general
      – SubjectFull: Carbon dioxide
        Type: general
      – SubjectFull: Catalysis
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Durability
        Type: general
    Titles:
      – TitleFull: Robust catalysis of hierarchically nanoporous gold for CO2 electrochemical reduction.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Yu, Tianshui
      – PersonEntity:
          Name:
            NameFull: Zhou, Xiangji
      – PersonEntity:
          Name:
            NameFull: Chen, Yu
      – PersonEntity:
          Name:
            NameFull: Chen, Jin
      – PersonEntity:
          Name:
            NameFull: Yuan, Songliu
      – PersonEntity:
          Name:
            NameFull: Zhang, Zhen
      – PersonEntity:
          Name:
            NameFull: Qian, Lihua
      – PersonEntity:
          Name:
            NameFull: Li, Song
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 01
              Text: Jan2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 00134686
          Numbering:
            – Type: volume
              Value: 437
          Titles:
            – TitleFull: Electrochimica Acta
              Type: main
ResultId 1