期刊
SOLAR RRL
卷 7, 期 2, 页码 -出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/solr.202200803
关键词
femtosecond laser; hierarchically porous carbon films; ideal solar absorbers; pore structures; solar-thermal interfacial evaporation
Solar-energy-powered interfacial evaporation is a meaningful strategy for various applications, including energy utilization, water desalination, and mineral purification. The efficiency of photothermal interfacial evaporation depends on the microstructure and surface/interface design, which affect the balance between solar-thermal conversion, water conduction, and thermal management.
Solar-energy-powered interfacial evaporation is the most meaningful strategy for energy utilization, water desalination, and mineral purification. It can achieve high efficiency, low-density energy, and sustainable harvest and utilization. However, the microstructure and surface/interface design still lead to a balance between solar-thermal conversion, water conduction, and thermal management, which also determines the efficiency of photothermal interfacial evaporation. Here, a free-standing, ultrathin carbon film with a tunable nanopore diameter is prepared and used as a blackbody layer for solar photothermal evaporation. By 3D reconstruction methods, the effect of pore structure on interfacial evaporation is systematically studied. Hierarchical porous carbon film with an average pore size of about 300 nm exhibits outstanding photothermal evaporation performance, reaching up to 1.96 kg m(-2) h(-1) with excellent stability. Ultra-hydrophobic, optically enhanced absorption graphene array is constructed on the carbon film surface through femtosecond laser nanopro- cessing, further increasing the evaporation rate to 2.12 kg m(-2) h(-1) (1 sun) and 5.55 kg m(-2) h(-3) (3 suns).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据