Fabrication of superhydrophobic Cu surfaces on Al substrates via a facile chemical deposition process
2012; Elsevier BV; Volume: 87; Linguagem: Inglês
10.1016/j.matlet.2012.07.077
ISSN1873-4979
AutoresJinlong Song, Wenji Xu, Xin Liu, Zefei Wei, Yao Lu,
Tópico(s)Fluid Dynamics and Thin Films
ResumoThis work presents a facile chemical deposition process to fabricate superhydrophobic Cu surfaces on Al substrates. The Al plates were first immersed in an aqueous solution that contains 1 mol/L CuSO4 and 2 mol/L NaCl for 8 s and were then modified by using fluoroalkylsilane to lower the surface energy. The sample surfaces were investigated using scanning electron microscopy, energy-dispersive X-ray spectroscopy, X-ray diffraction, Fourier transform infrared spectrometry, and optical contact angle measurements. The as-prepared superhydrophobic Cu surfaces show hierarchical micro/nanometer-scale rough structures comprising pores, pore walls, dendrites, leaves, and particles with a contact angle of 162.7° and a sliding angle of 0.5°.
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