Controlling the surface crystallographic orientation in a nanostructured catalyst is expected to be effective in improving its catalytic performance. Herein, a simple one-step method for producing an anodized nanoporous gold (NPG) electrode with a controlled contribution of atomic surface orientations is reported. Anodization of a conventional Au electrode in 35 and 500 mM HCl solutions produced nanoporous structures with a considerable amount of Au(1 1 1) and Au(1 0 0) surfaces, respectively. The former exhibited remarkably efficient electrocatalysis for the hydrogen evolution reaction (HER). The obtained results show that the present method is valuable for the development of effective catalysts for various applications utilizing nanoporous structures.

期望控制纳米结构催化剂中的表面晶体学取向可有效改善其催化性能。在此，报告了一种简单的一步法生产具有受控的原子表面取向贡献的阳极氧化纳米孔金（NPG）电极。常规Au电极在35和500 mM HCl溶液中的阳极氧化产生纳米孔结构，分别具有大量Au（1 1 1）和Au（1 0 0）表面。前者对析氢反应（HER）表现出非常有效的电催化作用。所获得的结果表明，本方法对于开发用于利用纳米孔结构的各种应用的有效催化剂是有价值的。