Issue 22, 2025

Fabrication of a superhydrophobic porous electrode with voltage-induced anti-fogging properties

Abstract

The design of stable superhydrophobic surfaces with anti-fogging properties activated by an applied voltage represents one of the most effective methods in the surface and interface sciences. In particular, a flexible three-dimensional (3D) porous electrode capable of resisting high humidity environments (fog) is expected to have a broader range of applications in smart wearable devices. Hence, a superhydrophobic and porous ODT/MWCNTs/MeS electrode has been proposed and investigated for its ability to respond stably under a specific applied voltage. The long alkyl chains of 1-octadecanethiol (ODT) are triggered by the applied voltage to induce chain stretching. The static contact angle of water on the 3D porous electrode is 158.7° at a supply voltage of 0 V, increasing to 162.1° when the voltage is 10 V. The numerous long alkyl chains on the MWCNT coating have been shown to be effective in trapping fog, which can accumulate on the superhydrophobic electrodes to form a liquid film. The CV curve of the superhydrophobic electrodes remains almost unaffected at a supply voltage of 10 V, even under continuous fog spray. Moreover, the it curve demonstrates that the continuous fog has minimal impact on the sensitivity and stability of ODT/MWCNTs/MeS electrodes at 10 V. In conclusion, this superhydrophobic and porous electrode, as a smart wearable sensor, can be activated by a supply voltage to achieve a stable response in a humid environment.

Graphical abstract: Fabrication of a superhydrophobic porous electrode with voltage-induced anti-fogging properties

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Article information

Article type
Paper
Submitted
29 এপ্রিল 2025
Accepted
12 মে 2025
First published
27 মে 2025
This article is Open Access
Creative Commons BY license

RSC Adv., 2025,15, 17435-17441

Fabrication of a superhydrophobic porous electrode with voltage-induced anti-fogging properties

Y. Ding, H. Zhang, Y. Wang, J. Li and Y. Zheng, RSC Adv., 2025, 15, 17435 DOI: 10.1039/D5RA03009A

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