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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/118671

    Title: Modulating the electronic structure of ultrathin layered double hydroxides nanosheets with fluorine: an efficient electrocatalyst for oxygen evolution reaction
    Authors: Liu, Z.;Dong, C. L.;Huang, Y. C.;Chen, J.;Yang, H.;Chen, X.;Li, H.;Tong, X.;Su, D.;Wang, Y.;Wang, S.
    Date: 2019-05-23
    Issue Date: 2020-06-01 12:12:29 (UTC+8)
    Abstract: Herein, we effectively modulate the electronic structure of Co3Fe layered double hydroxides (LDHs) by F-doping using a CHF3-plasma etching technique. CHF3-plasma can selectively fill oxygen vacancies with F− ions that can drastically tune the electronic structure with the highest electronegativity and create metal vacancies at the same time. The as-obtained F-Co3Fe LDH ultrathin nanosheets exhibit excellent oxygen evolution reaction (OER) properties. The outstanding electrochemical activity can be attributed to the incorporation of F− ions that strongly modulate the charge distribution of surrounding atoms to facilitate the adsorption of OER intermediates. This work provides a simple way to create metal vacancies and selectively fill oxygen vacancies with fluorine at the same time, and brings about a deep understanding of the electronic environment-activity relationship of LDHs for the OER.
    Relation: Journal of Materials Chemistry A 7, p.14483-14488
    DOI: 10.1039/C9TA03882E
    Appears in Collections:[Graduate Institute & Department of Physics] Journal Article

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