Ni is widely used in the field of corrosion protection because of its stability, hardness, and ductility. Inspired by the excellent hydrophobicity of walnut wood, imparted by its porous structure, we synthesized a morph-genetic, porous Ni sheet. A pyrolyzed walnut template was immersed in a Ni2+ solution, allowing Ni to be electroplated on the surface and to enter the skeleton's pores. After calcination and surface modification, a template-free, low-surface-energy Ni sheet was obtained and accurately investigated by scanning electron microscopy and contact angle goniometry to evaluate its morphology and hydrophobicity. The results show that the Ni sheet inherited the complementary structure of the template, and, in turn, its water-repelling ability. We were able to measure contact angles as large as 150°, demonstrating that the new surface morphology endowed Ni with superhydrophobicity.

中文翻译：

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使用核桃木模板制备超疏水Ni互补表面。

镍由于其稳定性，硬度和延展性而广泛用于腐蚀防护领域。核桃木具有优异的疏水性，其多孔结构赋予了我们灵感，我们合成了一种形变生成多孔镍片。将热解核桃模板浸入Ni2 +溶液中，使Ni电镀在表面上并进入骨架的孔中。经过煅烧和表面改性后，获得了无模板的低表面能镍薄板，并通过扫描电子显微镜和接触角测角法对其进行了精确研究，以评估其形态和疏水性。结果表明，镍片继承了模板的互补结构，进而继承了其拒水能力。我们能够测量高达150°的接触角，