Superhydrophobic Nanocrystalline Nickel Films Inspired by Lotus Leaf


A new method to fabricate superhydrophobic hard films is described. Surface texture of lotus leaf was replicated on an acetate film, on which a nanocrystalline (NC) Ni coating with a grain size of 30 ± 4 nm and a hardness of 4.42 GPa was electrodeposited. The surface texture consisted of conical protuberances with a height of 10.0 ± 2.0 0m and a tip radius of 2.5 ± 0.5 0m. An additional electrodeposition for 120 s and 300 s was used to locally modify the surface structure by depositing ‘Ni crowns’ on the protuberances that increased their height to 14.0 ± 2.0 0m and their tip radius to 6.0 ± 0.5 0m. The modified structures were then treated with a perfluoropolyether (PFPE) solution, which provided a high water contact angle of 156°, i.e., comparable to the naturally superhydrophobic lotus leaf. The increased hydrophobicity as a result of surface structure and chemistry modifications was evident compared to a smooth NC Ni sample, which had a contact angle of 64°.

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  1. 1.

    J.G. Kushmerick, M.G. Hankins, M.P. de Boer, P.J. Clews, R.W. Carpick and B.C. Bunker, Tribol. Lett. 10, 103 (2001).

    CAS  Article  Google Scholar 

  2. 2.

    R.N. Wenzel, Ind. Eng. Chem. 28, 988 (1936).

    CAS  Article  Google Scholar 

  3. 3.

    A.W. Adamson and A.P. Gast, Physical Chemistry of Surfaces (Wiley, New York, 1997) p. 353.

    Google Scholar 

  4. 4.

    A. Tuteja, W. Choi, G.H. McKinley, R.E. Cohen and M.F. Rubner, MRS Bull. 33, 752 (2008).

    CAS  Article  Google Scholar 

  5. 5.

    A.B.D. Cassie and S. Baxter, Trans. Faraday Soc. 3, 16 (1944).

    Google Scholar 

  6. 6.

    B. He, W. Chen and Q. Wang, in Proc. Int. Joint Tribol. Conf., San Antonio, TX, 2006.

    Google Scholar 

  7. 7.

    R.A. Singh, E. Yoon, H.J. Kim, J. Kim, H.E. Jeong and K.Y. Suh, Mater. Sci. Eng. C27, 875 (2007).

    Article  Google Scholar 

  8. 8.

    Z. Burton and B. Bhushan, Nano Lett. 5, 1607 (2005).

    CAS  Article  Google Scholar 

  9. 9.

    M. Shafiei and A.T. Alpas, Mater. Sci. Eng. C28, 1340 (2008).

    Article  Google Scholar 

  10. 10.

    C. Neinhuis and W. Barthlott, Ann. Botany 79, 667 (1997).

    Article  Google Scholar 

  11. 11.

    W. Barthlott and C. Neinhuis, Planta 202, 1 (1997).

    CAS  Article  Google Scholar 

  12. 12.

    Y.T. Cheng, D.E. Rodak, C.E. Wong and C.A. Hayden, Nanotechnology 17, 1359 (2006).

    Article  Google Scholar 

  13. 13.

    G. Gu, X. Shen and F. Qing, App. Surf. Sci. 253, 6980 (2007).

    CAS  Article  Google Scholar 

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Correspondence to Mehdi Shafiei.

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Shafiei, M., Ahmet, T.A. Superhydrophobic Nanocrystalline Nickel Films Inspired by Lotus Leaf. MRS Online Proceedings Library 1132, 11320717 (2008).

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