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题名: Shape-Controlled Synthesis of High-Quality Cu7S4 Nanocrystals for Efficient Light-Induced Water Evaporation
作者: Zhang, Changbo1, 2; Yan, Cong2; Xue, Zhenjie2; Yu, Wei2; Xie, Yinde1; Wang, Tie2
关键词: Cu7S4 ; light-induced water evaporation ; monodisperse ; ODE-Sulfur precursors
刊名: SMALL
发表日期: 2016-10-12
卷: 12, 期:38, 页:5320-5328
收录类别: SCI
英文摘要: Copper sulfides (Cu2-xS), are a novel kind of photothermal material exhibiting significant photothermal conversion efficiency, making them very attractive in various energy conversion related devices. Preparing high quality uniform Cu2-xS nanocrystals (NCs) is a top priority for further energy-and sustainability relevant nanodevices. Here, a shape-controlled high quality Cu7S4 NCs synthesis strategy is reported using sulfur in 1-octadecene as precursor by varying the heating temperature, as well as its forming mechanism. The performance of the Cu7S4 NCs is further explored for light-driven water evaporation without the need of heating the bulk liquid to the boiling point, and the results suggest that as-synthesized highly monodisperse NCs perform higher evaporation rate than polydisperse NCs under the identical morphology. Furthermore, disk-like NCs exhibit higher water evaporation rate than spherical NCs. The water evaporation rate can be further enhanced by assembling the organic phase Cu7S4 NCs into a dense film on the aqueous solution surface. The maximum photothermal conversion efficiency is as high as 77.1%.
语种: 英语
内容类型: 期刊论文
URI标识: http://ir.iccas.ac.cn/handle/121111/35508
Appears in Collections:活体分析化学实验室_期刊论文

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作者单位: 1.Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou 450001, Peoples R China
2.Chinese Acad Sci, Beijing Natl Lab Mol Sci, Key Lab Analyt Chem Living Biosyst, Inst Chem, Beijing 100190, Peoples R China
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