期刊
ADVANCED ENERGY MATERIALS
卷 8, 期 22, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.201800459
关键词
biomimetic; energy harvesting; nanopores; thermoelectric conversion; waste heat
类别
资金
- National Key R&D Program of China [2017YFA0206900]
- National Natural Science Foundation [21625303, 51673206, 21434003]
- Key Research Program of the Chinese Academy of Sciences [QYZDY-SSW-SLH014]
Low-grade heat energies are ubiquitous, and most of these energies are untapped as heated river water or seawater. Therefore, it is meaningful and valuable to extract the stored energies in the context of the energy crisis by using a simple device with low-cost effectiveness. Here, a simple thermoelectric conversion system is shown using directed ionic flow through the biomimetic smart nanochannels, inspired by the human skin. The obtained power density of the nanodevice can ideally be 88.8 W m(-2) with a membrane temperature gradient (Delta T) of 40 degrees C. As proof of concept, it is demonstrated that the principle can be introduced into simple and portable prototypes to harvest low-grade heat. Such a thermoelectric conversion apparatus provides a new venue for low-grade heat harvesting. In addition, this self-powered system may extend the electronic skin field and find applications in skin prosthetics.
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