Nano-Micro Letters, Volume. 16, Issue 1, 159(2024)
Wettability Gradient-Induced Diode: MXene-Engineered Membrane for Passive-Evaporative Cooling
Thermoregulatory textiles, leveraging high-emissivity structural materials, have arisen as a promising candidate for personal cooling management; however, their advancement has been hindered by the underperformed water moisture transportation capacity, which impacts on their thermophysiological comfort. Herein, we designed a wettability-gradient-induced-diode (WGID) membrane achieving by MXene-engineered electrospun technology, which could facilitate heat dissipation and moisture-wicking transportation. As a result, the obtained WGID membrane could obtain a cooling temperature of 1.5 °C in the “dry” state, and 7.1 °C in the “wet” state, which was ascribed to its high emissivity of 96.40% in the MIR range, superior thermal conductivity of 0.3349 W m-1 K-1 (based on radiation- and conduction-controlled mechanisms), and unidirectional moisture transportation property. The proposed design offers an approach for meticulously engineering electrospun membranes with enhanced heat dissipation and moisture transportation, thereby paving the way for developing more efficient and comfortable thermoregulatory textiles in a high-humidity microenvironment.
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Leqi Lei, Shuo Meng, Yifan Si, Shuo Shi, Hanbai Wu, Jieqiong Yang, Jinlian Hu. Wettability Gradient-Induced Diode: MXene-Engineered Membrane for Passive-Evaporative Cooling[J]. Nano-Micro Letters, 2024, 16(1): 159
Category: Research Articles
Received: Oct. 9, 2023
Accepted: Jan. 17, 2024
Published Online: Apr. 29, 2024
The Author Email: Hu Jinlian (jinliahu@cityu.edu.hk)