N-Doped carbon dots: a metal-free co-catalyst on hematite nanorod arrays toward efficient photoelectrochemical water oxidation

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归属学者:

颜磊

归属院系:

刑事侦查学院

作者:

Huang, XN ; Yang, LB ; Hao, S ; Zheng, BZ ; Yan, L ; Qu, FL ; Asiri, AM ; Sun, XP

摘要:

In this communication, we demonstrate the use of N-doped carbon dots (N-CDs) as a co-catalyst for hematite (alpha-Fe2O3) nanorod arrays on a Ti sheet for photoelectrochemical water oxidation. Under simulated light irradiation, the photocurrent density of the resulting N-CDs@alpha-Fe2O3/Ti as a photoanode exhibits a 3.4 times increase with a 280 mV cathode shift of the onset potential relative to that of pristine alpha-Fe2O3/Ti, with excellent photostability. The up-conversion fluorescent properties of N-CDs enable the absorption of longer wavelength irradiation with emission of short wavelength light to excite alpha-Fe2O3, leading to the generation of more electron-hole pairs.

语种:

英文

出版日期:

2017-03

学科:

化学

收录:

SCI(E)

提交日期

2018-01-11

引用参考

Huang, XN; Yang, LB; Hao, S; Zheng, BZ; Yan, L; Qu, FL; Asiri, AM; Sun, XP. N-Doped carbon dots: a metal-free co-catalyst on hematite nanorod arrays toward efficient photoelectrochemical water oxidation[J]. INORGANIC CHEMISTRY FRONTIERS,2017(3):.

  • dc.title
  • N-Doped carbon dots: a metal-free co-catalyst on hematite nanorod arrays toward efficient photoelectrochemical water oxidation
  • dc.contributor.author
  • Huang, XN; Yang, LB; Hao, S; Zheng, BZ; Yan, L; Qu, FL; Asiri, AM; Sun, XP
  • dc.contributor.affiliation
  • Sichuan Univ, Coll Chem, Chengdu 610064, Sichuan, Peoples R China;Southwest Univ Polit Sci & Law, Sch Criminal Invest, Chongqing 401120, Peoples R China;Qufu Normal Univ, Coll Chem & Chem Engn, Qufu 273165, Shandong, Peoples R China;King Abdulaziz Univ, Dept Chem, Jeddah 21589, Saudi Arabia
  • dc.publisher
  • INORGANIC CHEMISTRY FRONTIERS
  • dc.identifier.year
  • 2017
  • dc.identifier.issue
  • 3
  • dc.identifier.volume
  • 4
  • dc.date.issued
  • 2017-03
  • dc.language.iso
  • 英文
  • dc.description.abstract
  • In this communication, we demonstrate the use of N-doped carbon dots (N-CDs) as a co-catalyst for hematite (alpha-Fe2O3) nanorod arrays on a Ti sheet for photoelectrochemical water oxidation. Under simulated light irradiation, the photocurrent density of the resulting N-CDs@alpha-Fe2O3/Ti as a photoanode exhibits a 3.4 times increase with a 280 mV cathode shift of the onset potential relative to that of pristine alpha-Fe2O3/Ti, with excellent photostability. The up-conversion fluorescent properties of N-CDs enable the absorption of longer wavelength irradiation with emission of short wavelength light to excite alpha-Fe2O3, leading to the generation of more electron-hole pairs.
  • dc.description.sponsorship
  • National Nature Science Foundation of China [21407109, 51401174, 21575137]; Natural Science Foundation of Chongqing [cstcjjA00026]
  • dc.identifier.issn
  • 2052-1553
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