Wettability Gradient-Induced Diode: MXene-Engineered Membrane for Passive-Evaporative Cooling

Leqi Lei; Shuo Meng; Yifan Si; Shuo Shi; Hanbai Wu; Jieqiong Yang; Jinlian Hu

doi:10.1007/s40820-024-01359-8

Nano-Micro Letters (Mar 2024)

Wettability Gradient-Induced Diode: MXene-Engineered Membrane for Passive-Evaporative Cooling

Leqi Lei,
Shuo Meng,
Yifan Si,
Shuo Shi,
Hanbai Wu,
Jieqiong Yang,
Jinlian Hu

Affiliations

Leqi Lei: Department of Biomedical Engineering, City University of Hong Kong
Shuo Meng: Department of Biomedical Engineering, City University of Hong Kong
Yifan Si: Department of Biomedical Engineering, City University of Hong Kong
Shuo Shi: Department of Biomedical Engineering, City University of Hong Kong
Hanbai Wu: Department of Biomedical Engineering, City University of Hong Kong
Jieqiong Yang: Department of Biomedical Engineering, City University of Hong Kong
Jinlian Hu: Department of Biomedical Engineering, City University of Hong Kong

DOI: https://doi.org/10.1007/s40820-024-01359-8
Journal volume & issue: Vol. 16, no. 1
pp. 1 – 16

Abstract

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Highlights Engineering MXene into electrospun nanofibers can effectively enhance its thermal emissivity and conductance, and the unidirectional water transport of the wettability-gradient-induced-diode (WGID) membrane displayed diode-like properties with wettability gradient by tailoring the water contact angle of each single layer. The WGID membrane could achieve a cooling temperature of 1.5 °C in the “dry” state, and 7.1 °C in the “wet” state, with high emissivity of 96.40% in the MIR range, superior thermal conductivity of 0.3349 W m−1 K−1. Zero-energy-consumption for personal cooling management via multiple heat dissipation pathways, including thermal radiation, conduction, and evaporation.

Published in Nano-Micro Letters

ISSN: 2311-6706 (Print); 2150-5551 (Online)
Publisher: SpringerOpen
Country of publisher: Germany
LCC subjects: Technology
Website: http://www.springer.com/40820

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