Journal
JOURNAL OF POWER SOURCES
Volume 448, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.jpowsour.2019.227388
Keywords
Multi-walled carbon nanotube; Limnobium laevigatum; Nanogenerator; Electricity generation; Solar-driven interfacial evaporation
Funding
- Vietnam National Foundation for Science and Technology Development (NAFOSTED) [103.02-2018.27]
- National Research Foundation (NRF) [NRF-2017R1A4A1015360]
- Ministry of Science and ICT, Republic of Korea
- National Research Foundation of Korea [21A20151513147] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Owing to its high conversion efficiency of solar energy and transformative industrial potential, solar-driven interfacial evaporation has been proposed as a promising alternative to conventional bulk heating-based evaporation, potentially reducing thermal losses and improving energy conversion efficiency. By using the process of plant transpiration, we developed here the Limnobium laevigatum inspired nanogenerator (LLN) made of multi-walled carbon nanotubes (MWNTs)-coated cellulose paper-located on Polystyrene (PS) foam that can float on water surface with high electricity generation and excellent freshwater production in water-rich locations such as lakes, rivers, and oceans at all hours of the day. LLN can achieve a high power density of over 50 mW m(-2) and procedure freshwater at high evaporation rates of 1.48 kg m(-2) h(-1) during the daytime and 0.58 kg m(-2) h(-1) in the night, at an ambient temperature of 20 degrees C and humidity of 40%, The maximum power density of an LLN can be as high as 248.57/107.38 mW m(-2) with a NaCl solution of 0.6 M under 1-sun/0-sun conditions that is expected the same value for seawater. The LLN can support useful power in offshore locations or deserted islands.
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