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Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis.

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Title: Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis.
Authors: Shifa, Tofik Ahmed1 (AUTHOR) tofikahmed.shifa@unive.it, Gradone, Alessandro2 (AUTHOR), Yusupov, Khabib3 (AUTHOR), Ibrahim, Kassa Belay1 (AUTHOR), Jugovac, Matteo4 (AUTHOR), Sheverdyaeva, Polina Makarovna5 (AUTHOR), Rosen, Johanna3 (AUTHOR), Morandi, Vittorio2 (AUTHOR), Moras, Paolo5 (AUTHOR), Vomiero, Alberto1,6 (AUTHOR) alberto.vomiero@unive.it
Source: Chemical Engineering Journal. Feb2023:Part 1, Vol. 453, pN.PAG-N.PAG. 1p.
Subjects: Oxidation of water, Oxygen evolution reactions, Catalysis, Catalytic activity, Chemical synthesis, X-ray photoelectron spectroscopy, Charge transfer
Abstract: [Display omitted] • We interfaced CrOx with CuS on carbon fiber substrate whose junction deliver intriguing structural/electronic property. • The theoretical calculation proved that charges are mainly distributed between the CuS layer and the Cr 2 O 3. • The co-existence of CrOx and CuS triggered charge transfer at the interface. • The heterojunction gave rise to the advent of defects/low-coordinated central metal atom. • The presented methodology would guide subsequent works focused on altering the intrinsic properties of oxide-sulfide interface. The sluggish kinetics associated with the oxygen evolution reaction (OER) limits the sustainability of fuel production and chemical synthesis. Developing catalysts based on Earth abundant elements with a reasonable strategy could solve the challenge. Here, we present a heterostructure built from CrOx and CuS whose interface gives rise to the advent of new functionalities in catalytic activity. Using X-ray photoelectron and absorption spectroscopies, we identified the multiple oxidation states and low coordination number of Cr metal in CrOx-CuS heterostructure. Benefitting from these features, CrOx-CuS generates oxygen gas through water splitting with a low over potential of 190 mV vs RHE at a current density of 10 mA cm−2. The catalyst shows no evident deactivation after a 36-hours operation in alkaline medium. The high catalytic activity, inspired by first principles calculations, and long-time durability make it one of the most effective OER electrocatalysts. [ABSTRACT FROM AUTHOR]
Copyright of Chemical Engineering Journal 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: 160237370
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
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  Data: Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis.
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  Data: <searchLink fieldCode="AR" term="%22Shifa%2C+Tofik+Ahmed%22">Shifa, Tofik Ahmed</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> tofikahmed.shifa@unive.it</i><br /><searchLink fieldCode="AR" term="%22Gradone%2C+Alessandro%22">Gradone, Alessandro</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yusupov%2C+Khabib%22">Yusupov, Khabib</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ibrahim%2C+Kassa+Belay%22">Ibrahim, Kassa Belay</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jugovac%2C+Matteo%22">Jugovac, Matteo</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Sheverdyaeva%2C+Polina+Makarovna%22">Sheverdyaeva, Polina Makarovna</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Rosen%2C+Johanna%22">Rosen, Johanna</searchLink><relatesTo>3</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Morandi%2C+Vittorio%22">Morandi, Vittorio</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Moras%2C+Paolo%22">Moras, Paolo</searchLink><relatesTo>5</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Vomiero%2C+Alberto%22">Vomiero, Alberto</searchLink><relatesTo>1,6</relatesTo> (AUTHOR)<i> alberto.vomiero@unive.it</i>
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  Data: <searchLink fieldCode="JN" term="%22Chemical+Engineering+Journal%22">Chemical Engineering Journal</searchLink>. Feb2023:Part 1, Vol. 453, pN.PAG-N.PAG. 1p.
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  Data: <searchLink fieldCode="DE" term="%22Oxidation+of+water%22">Oxidation of water</searchLink><br /><searchLink fieldCode="DE" term="%22Oxygen+evolution+reactions%22">Oxygen evolution reactions</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="%22Chemical+synthesis%22">Chemical synthesis</searchLink><br /><searchLink fieldCode="DE" term="%22X-ray+photoelectron+spectroscopy%22">X-ray photoelectron spectroscopy</searchLink><br /><searchLink fieldCode="DE" term="%22Charge+transfer%22">Charge transfer</searchLink>
– Name: Abstract
  Label: Abstract
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  Data: [Display omitted] • We interfaced CrOx with CuS on carbon fiber substrate whose junction deliver intriguing structural/electronic property. • The theoretical calculation proved that charges are mainly distributed between the CuS layer and the Cr 2 O 3. • The co-existence of CrOx and CuS triggered charge transfer at the interface. • The heterojunction gave rise to the advent of defects/low-coordinated central metal atom. • The presented methodology would guide subsequent works focused on altering the intrinsic properties of oxide-sulfide interface. The sluggish kinetics associated with the oxygen evolution reaction (OER) limits the sustainability of fuel production and chemical synthesis. Developing catalysts based on Earth abundant elements with a reasonable strategy could solve the challenge. Here, we present a heterostructure built from CrOx and CuS whose interface gives rise to the advent of new functionalities in catalytic activity. Using X-ray photoelectron and absorption spectroscopies, we identified the multiple oxidation states and low coordination number of Cr metal in CrOx-CuS heterostructure. Benefitting from these features, CrOx-CuS generates oxygen gas through water splitting with a low over potential of 190 mV vs RHE at a current density of 10 mA cm−2. The catalyst shows no evident deactivation after a 36-hours operation in alkaline medium. The high catalytic activity, inspired by first principles calculations, and long-time durability make it one of the most effective OER electrocatalysts. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Chemical Engineering Journal 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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    Identifiers:
      – Type: doi
        Value: 10.1016/j.cej.2022.139781
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 1
        StartPage: N.PAG
    Subjects:
      – SubjectFull: Oxidation of water
        Type: general
      – SubjectFull: Oxygen evolution reactions
        Type: general
      – SubjectFull: Catalysis
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Chemical synthesis
        Type: general
      – SubjectFull: X-ray photoelectron spectroscopy
        Type: general
      – SubjectFull: Charge transfer
        Type: general
    Titles:
      – TitleFull: Interfacing CrOx and CuS for synergistically enhanced water oxidation catalysis.
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            – D: 01
              M: 02
              Text: Feb2023:Part 1
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              Y: 2023
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              Value: 453
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