期刊
JOURNAL OF MATERIALS CHEMISTRY A
卷 7, 期 21, 页码 13036-13042出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c9ta00041k
关键词
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资金
- National Natural Science Foundation of China [41873016, 51778295, 51608277]
- Jiangsu Province 333 Talent Project [BRA2018033]
- Startup Foundation for Introducing Talent of NUIST [2018r035, 2018r036]
Solar-driven distillation and desalination are promising technologies for large-scale water purification. Internal micro-channels are critical for the performance of a steam generation device in consideration of thermal management and water transportation. Here, we designed novel porous three-dimensional carbon foams (CFs) with unique interconnected channels and rough surfaces via alkali activation of naturally abundant wood. Promoted by the rough surface, the CFs can harvest more than 97% of the energy of the solar spectrum. The hydrophilic interconnected micro-channels of the CFs enhance water transportation and heat localization. Benefiting from these advantages, the highest steam generation efficiency of the CFs reaches 80.1% under 1 kW m(-2). In addition, the CFs also show high stability under harsh conditions and high activity in desalination of seawater. With the unique interconnected microchannels, this porous carbon device offers a scalable, cost-effective and efficient choice for solar steam generation.
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