期刊
SOLID STATE SCIENCES
卷 10, 期 11, 页码 1568-1576出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.solidstatesciences.2008.02.005
关键词
Crystal morphology; Growth from solutions; Superhydrophobicity
资金
- National Natural Science Foundation of China [50202007]
A new hierarchical CuO architecture consisting of densely packed nanoplates and nanoribbons was directly fabricated on Cu foils via a room-temperature solution-immersion process. The architectures resembled cabbages both in the shape and structure, and the plates and ribbons served as the leafstalks and leaves of cabbages, respectively. By carefully monitoring the growth stages, it was found that self-assembled CuO nanoplates could be firstly formed on the Cu foils, and then CuO tiny flexible nanoribbons were grown from the edges of fresh plates. The effect of NaOH concentration on the morphology of CuO structures was discussed. Importantly, stable superhydrophobicity (contact angle CA = 155 degrees), independent of pH value of the water droplets, was successfully observed for CuO microcabbages after modification. The wettability of other CuO micro- and nanoscale hierarchical surface structures fabricated using various NaOH concentrations was also presented. The realization of superhydrophobic bionic surfaces with a new hierarchical morphology of CuO will shed new insights in both the synthesis and application fields. (c) 2008 Elsevier Masson SAS. All fights reserved.
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