期刊
ADVANCED FUNCTIONAL MATERIALS
卷 30, 期 14, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adfm.201910481
关键词
interfacial evaporation; pyroelectricity generation; temperature regulation
类别
资金
- National Key R&D Program of China [2016YFB0402100]
- National Natural Science Foundation of China [51521004, 51420105009, 51873105]
- 111 Project [B16032]
- Innovation Program of Shanghai Municipal Education Commission [2019-01-07-00-02-E00069]
- Center of Hydrogen Science from Shanghai Jiao Tong University
Human skin shows self-adaptive temperature regulation through both enhanced heat dissipation in high temperature environments and depressed heat dissipation in cold environments. Inspired by such thermal regulation processes, an interfacial material system with self-adaptive temperature regulation in the solar-driven interfacial evaporation system, which can exhibit automatic temperature oscillation to enable pyroelectricity generation while producing water vapor, is reported. The bioinspired interface system is designed with the combination of a thermochromism-based temperature regulator consisting of tungsten-doped vanadium dioxide nanoparticles and a polymeric pyroelectric thin film of polyvinylidene fluoride. Under the simulated solar illumination with power density of 1.1 kW m(-2), the bioinspired interfacial evaporation system achieves a self-adaptive temperature oscillation with the maximum temperature difference of approximate to 7 degrees C and this system can simultaneously generate water vapor as well as electricity with an evaporation efficiency of 71.43% and a maximum output electrical power density of 104 mu W m(-2), respectively. The study demonstrates a design of thermal management at the interface of solar-driven evaporation system to exhibit a self-adaptive temperature oscillation and offers an alternative approach for the multifunctional harvesting of solar energy.
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