期刊
NANO ENERGY
卷 89, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2021.106389
关键词
Net zero energy structure; Renewable energy harvesting; Structural energy material; Cement-based conductive composite; Structural capacitor
类别
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2019R1C1C1005846]
- National Research Foundation of Korea (NRF) - Korea government (MSIT) [2019R1C1C1008190]
- National Research Foundation of Korea [2019R1C1C1008190] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
The article proposes a strategy for energy harvesting and storage using cement-based conductive composite materials, and demonstrates the potential of this material in collecting various renewable energies. It is an important material for participating in the development of energy zero smart cities.
As the buildings and infrastructures are considered as the most crucial target for developing an energy zero smart city, the concept of the net zero energy structure (NZES), which can harvest renewable energy and offset the energy consumption, has been considered as an integrated solution. Herein, a strategy for harvesting and storing energy using cement-based conductive composite (CBC) with carbon fiber fillers as structural energy material is suggested. Simultaneous consideration of electrical and mechanical properties of CBC results in the optimal concentration as its electrical percolation threshold (similar to 1 vol%) to take sufficient long-range electrical conductivity while minimizing the deterioration of the mechanical property. The CBC introduced triboelectric nanogenerators, CBC-TENGs, are developed to demonstrate the harvesting various renewable energies, such as the wind, biomechanical, and blue energies, and the practical using of it. Moreover, the CBC-capacitor, which employs CBC as the core element of the capacitor, is fabricated to show the potential of CBC as a member in the structural capacitor. Given that cement is the most ordinary but indispensable one among the constructing materials, CBC has a great potential in the development of the NZES and in realizing the energy zero smart city based on the excellent functionalities of CBC.
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