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Photoelectrochemical properties of plasma-induced nanostructured tungsten oxide

Author
Abstract

Helium (He)-induced nanostructured tungsten sheets were synthesized by He plasma irradiation under different plasma exposure durations. After calcination, nanostructured tungsten oxide samples were used as photoelectrodes to test photoelectrochemical (PEC) performance. The results showed that nanostructured WO3 photoanodes have higher PEC performance compared to the sample without nanostructures. The 15 min irradiated sample had the highest photocurrent density of 3.5 mA/cm2 under the thermodynamic potential of water oxidation (1.23 V vs. RHE). It was found that the oxide layer thickness and exposed crystal facet have a significant impact on PEC performance. The plasma synthesis technique has proved to be an effective method for preparing nanostructured WO3 photoelectrodes.

Year of Publication
2022
Journal
Applied Surface Science
Volume
580
Number of Pages
151979
Date Published
04/2022
DOI
10.1016/j.apsusc.2021.151979
PId
5ea170ab4d8866abc6208193337731f9
Alternate Journal
Appl. Surf. Sci.
Label
OA
Attachment
Journal Article
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