BROWSE

Related Researcher

Author's Photo

Lee, Jae Sung
Eco-friendly Catalysis and Energy Lab
Research Interests
  • Photocatalytic water splitting, artificial photosynthesis, fuel cells, heterogeneous catalysis

ITEM VIEW & DOWNLOAD

Microwave-assisted metal-ion attachment for ex-situ zirconium doping into hematite for enhanced photoelectrochemical water splitting

DC Field Value Language
dc.contributor.author Dhandole, Love Kumar ko
dc.contributor.author Anushkkaran, Periyasamy ko
dc.contributor.author Hwang, Jun Beom ko
dc.contributor.author Chae, Weon-Sik ko
dc.contributor.author Kumar, Manish ko
dc.contributor.author Lee, Hyun-Hwi ko
dc.contributor.author Choi, Sun Hee ko
dc.contributor.author Jang, Jum Suk ko
dc.contributor.author Lee, Jae Sung ko
dc.date.available 2022-06-24T04:35:15Z -
dc.date.created 2022-06-17 ko
dc.date.issued 2022-04 ko
dc.identifier.citation RENEWABLE ENERGY, v.189, pp.694 - 703 ko
dc.identifier.issn 0960-1481 ko
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/58692 -
dc.description.abstract Ex-situ doping into hematite films is carried out via a short-duration (-60 s) microwave-assisted metalions attachment (MWMA) of tetravalent Zr4 thorn ion on the surface of FeOOH/FTO, followed by high temperature annealing (HTA) to fabricate Zr4 thorn :Fe2O3/FTO photoanode for photoelectrochemical (PEC) water splitting. Compared to a simple dipping attachment without microwave irradiation, this MWMA allows a much larger amount of attached Zr4 thorn -ions on the FeOOH precursor, leading to a properly doped photoanode of much higher PEC activity. The primary effect of Zr4 thorn doping is to improve the charge transport characteristics in the bulk of hematite. In addition, it also boosts charge injection efficiency at the semiconductor and electrolyte interface by forming an inadvertent passivation layer and promoting hole transfer via surface states. As a result, the Zr4 thorn :Fe2O3/FTO photoanode shows a higher photocurrent density of 1.54 mA cm-2 at 1.23 VRHE under 1 Sun irradiation relative to undoped Fe2O3/FTO (1.02 mA cm-2) or Zr4 thorn :Fe2O3/FTO (1.19 mA cm-2) prepared without MWMA. (c) 2022 Elsevier Ltd. All rights reserved. ko
dc.language 영어 ko
dc.publisher PERGAMON-ELSEVIER SCIENCE LTD ko
dc.title Microwave-assisted metal-ion attachment for ex-situ zirconium doping into hematite for enhanced photoelectrochemical water splitting ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85126529891 ko
dc.identifier.wosid 000806937000010 ko
dc.type.rims ART ko
dc.identifier.doi 10.1016/j.renene.2022.03.025 ko
Appears in Collections:
ECHE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show simple item record

qrcode

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU