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Issue 45, 2015
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Defective ZnFe2O4 nanorods with oxygen vacancy for photoelectrochemical water splitting

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Abstract

A one-dimensional zinc ferrite (ZnFe2O4) nanorod photoanode was prepared by a simple solution method on the F-doped tin oxide glass substrate. Thermal treatment under a hydrogen or vacuum atmosphere improved the photoelectrochemical water oxidation activity up to 20 times. The various physical characterization techniques used revealed that oxygen vacancies were created by the treatments in the near surface region, which increased the donor density and passivated the surface states. Hydrogen treatment was more effective and it was important to find optimum treatment conditions to take advantage of the positive role of oxygen vacancy as a source of electron donors and avoid its negative effect as electron trap sites.

Graphical abstract: Defective ZnFe2O4 nanorods with oxygen vacancy for photoelectrochemical water splitting

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Publication details

The article was received on 26 ágú. 2015, accepted on 21 okt. 2015 and first published on 22 okt. 2015


Article type: Paper
DOI: 10.1039/C5NR05812K
Author version available: Download Author version (PDF)
Citation: Nanoscale, 2015,7, 19144-19151
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    Defective ZnFe2O4 nanorods with oxygen vacancy for photoelectrochemical water splitting

    J. H. Kim, Y. J. Jang, J. H. Kim, J. Jang, S. H. Choi and J. S. Lee, Nanoscale, 2015, 7, 19144
    DOI: 10.1039/C5NR05812K

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