Journal
NANO ENERGY
Volume 97, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.nanoen.2022.107180
Keywords
biomass-derived nanocomposites; multifun c tional; solar-to-thermal conversion; thermal management
Categories
Funding
- Natural Science Foundation of China [52073295]
- Sino-German Mobility Program [M-0424]
- Ningbo Public Welfare Science and Technology Plan Project [2021S150]
- Ningbo Science and Technology Bureau [2021Z127]
- Key Research Program of Frontier Sciences, Chinese Academy of Sciences [QYZDB-SSWSLH036]
- Bureau of International Cooperation, Chinese Academy of Sciences [174433KYSB20170061]
- K. C. Wong Education Foundation [GJTD-2019-13]
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Solar-to-thermal conversion is an efficient way to convert sunlight into thermal energy. This study designs a cost-effective, scalable, biodegradable nanocomposite for solar-to-thermal applications. By balancing photothermal and water-absorbing capacities, the designed solar evaporator achieves efficient evaporation and improved voltage output.
Solar-to-thermal conversion is a direct and efficient way to -convert renewable and green sunlight to manageable thermal energy for diverse applications from steam production, energy harvest to personal thermal management. However, developing biomass-derived functional materials with eco-friendly, low-cost, and extensible features remains a challenge. Here, a cost-effective, scalable, biodegradable, and multifunctional nanocomposite was designed for solar-to-thermal applications. Through balancing the photothermal and water-absorbing capacities, the designed solar evaporator can demonstrate an efficient evaporation rate of 1.23 kg m(-2) h(-1) under 1 sun. Meanwhile, solar irradiation can further boost the directional water flow process, resulting in a remarkable improvement of generated voltage from the initial 410-515 mV under 1 sun. Thus, the as-prepared nano composites displayed an excellent comprehensive performance, which was superior to the majority of the previously reported non-biomass and other biomass materials. Furthermore, a wearable personal thermal management device was designed to simultaneously realize the electrical response of solar intensity and fast heating. As a proof of concept, a thermal managing house system enabled by solar energy was implemented to achieve an effective and eco-friendly temperature control without excessive energy consumption.
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