1 Ocak 2022 Dergi makalesi Açık Erişim

Celebi, Nuray; Salimi, Kouroush

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  <identifier identifierType="URL">https://aperta.ulakbim.gov.tr/record/237664</identifier>
  <creators>
    <creator>
      <creatorName>Celebi, Nuray</creatorName>
      <givenName>Nuray</givenName>
      <familyName>Celebi</familyName>
      <affiliation>Ankara Yildirim Beyazit Univ, Fac Engn &amp; Nat Sci, Dept Energy Syst Engn, Ankara, Turkey</affiliation>
    </creator>
    <creator>
      <creatorName>Salimi, Kouroush</creatorName>
      <givenName>Kouroush</givenName>
      <familyName>Salimi</familyName>
      <affiliation>Ankara Yildirim Beyazit Univ, Fac Engn &amp; Nat Sci, Dept Chem Engn, Ankara, Turkey</affiliation>
    </creator>
  </creators>
  <titles>
    <title>Yolk-Shell Zno@C-Ceo2 Ternary Heterostructures With Conductive N-Doped Carbon Mediated Electron Transfer For Highly Efficient Water Splitting</title>
  </titles>
  <publisher>Aperta</publisher>
  <publicationYear>2022</publicationYear>
  <dates>
    <date dateType="Issued">2022-01-01</date>
  </dates>
  <resourceType resourceTypeGeneral="Text">Journal article</resourceType>
  <alternateIdentifiers>
    <alternateIdentifier alternateIdentifierType="url">https://aperta.ulakbim.gov.tr/record/237664</alternateIdentifier>
  </alternateIdentifiers>
  <relatedIdentifiers>
    <relatedIdentifier relatedIdentifierType="DOI" relationType="IsIdenticalTo">10.1016/j.jcis.2021.07.052</relatedIdentifier>
  </relatedIdentifiers>
  <rightsList>
    <rights rightsURI="http://www.opendefinition.org/licenses/cc-by">Creative Commons Attribution</rights>
    <rights rightsURI="info:eu-repo/semantics/openAccess">Open Access</rights>
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  <descriptions>
    <description descriptionType="Abstract">Herein, carbon-incorporated yolk-shell ZnO@C-CeO2 ternary heterostructures are employed as visible light responsive photocatalyst for highly efficient photoelectrochemical (PEC) water splitting. Compared to conventional ZnO/CeO2 semiconductors, introduction of a thin PDA shell layer assures the generation of a conductive N-doped graphitic carbon layer after a calcination post-treatment with mesoporous hollow morphologies. The evaluation of PEC water splitting performance of ZnO@C-CeO2 photoanodes reveals the maximum photocurrent density as 7.43 mA/cm(2) at 1.18 V RHE under light whereas almost no response is recorded at dark. These superior PEC H-2 evolution performance strongly implies efficient charge separation, facilitated charge transfer between photoanode and electrolyte inter-face as well as within the semiconductor bulk by means of rapid electron transfer ability of N-doped graphitic carbon layer and prolong life time of light inside yolk-shell structure. Furthermore, considerable depression in PL intensity of ZnO@C-CeO2 photoanodes compared to ZnO clearly reveals a higher photon absorption due to the reflection of light in hollow region and increase in electron hole separation effi-ciency. Moreover, plausible Z-scheme charge transfer mechanism using ZnO@C-CeO2 photoanodes under visible light illumination is verified using radical trapping experiments and X-ray photoelectron spectroscopy (XPS) methods, suggesting new generation of heterostructures for sufficient conversion of sun-light to H-2 fuels. (C) 2021 Elsevier Inc. All rights reserved.</description>
  </descriptions>
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