Abstract Pt-Co micro/nanoporous array was fabricated by electrochemical deposition with the aid of a colloidal monolayer as a template. Morphology observation revealed that the prepared Pt-Co array was composed of ordered, hexagonal and spherical hollow holes with uniform nanogaps on the inner pore walls. The average Co content in the array was about 20 at%. The electrochemical measurements showed that the Pt-Co porous array exhibited high catalytic activity and stability for methanol electrooxidation in alkaline medium, which made it more attractive for fuel cell applications.

中文翻译：

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甲醇电氧化高活性Pt-Co微/纳米孔阵列的合成

摘要 以胶体单层为模板，通过电化学沉积制备了Pt-Co微/纳米孔阵列。形态学观察表明，制备的 Pt-Co 阵列由有序的、六角形和球形的空心孔组成，内孔壁上具有均匀的纳米间隙。阵列中的平均 Co 含量约为 20 at%。电化学测量表明，Pt-Co多孔阵列在碱性介质中对甲醇电氧化表现出较高的催化活性和稳定性，使其在燃料电池应用中更具吸引力。