Due to its simplicity, flexibility and conformity, electroless plating presents itself as an attractive route towards functional metal nanostructures. Despite the importance for creating multimetallic materials with enhanced properties, the complex interactions between the components in electroless plating baths make alloy formations a challenging objective. In this work, we outline an electroless plating strategy fabricating Pd‐Pt alloy nanomaterials, which is based on arbitrarily miscible plating baths for the individual metals. To demonstrate the excellent nanoscale conformity and homogeneity of our plating system, we apply it to ion track‐etched polymer templates with large inner surfaces as ambitious substrates, resulting in the formation of 3D free‐standing Pd x Pt 100‐x ‐nanotube‐networks (NTNWs). Based on the electro‐oxidation of methanol as a model reaction, we utilize the compositional freedom provided by our syntheses for optimizing the catalytic performance of our metal NTNWs, which heavily depends on the Pd‐Pt ratio. Within our system, the highest surface normalized activity was found for the Pd 20 Pt 80 ‐NTNW, reaching more than a two‐fold increase of the peak current density in comparison to pure Pt. Overall, our reaction system provides a versatile toolkit for fabricating intricate Pd‐Pt nanostructures of arbitrary elemental composition, and constitutes a starting point for designing new electroless alloy plating baths.

中文翻译：

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Pd-Pt合金纳米管网络的化学纳米镀覆：可完全控制甲醇氧化反应的催化剂

由于其简单性，柔韧性和顺应性，化学镀本身是通往功能性金属纳米结构的诱人途径。尽管创建具有增强性能的多金属材料非常重要，但化学镀浴中各组分之间的复杂相互作用使合金的形成成为一项具有挑战性的目标。在这项工作中，我们概述了一种基于Pd-Pt合金纳米材料的化学镀策略，该策略基于对每种金属的任意混溶镀液。为了证明我们电镀系统出色的纳米级一致性和均质性，我们将其应用于具有大内表面的离子轨道蚀刻聚合物模板作为雄心勃勃的基材，从而形成了3D独立式Pd x Pt 100-x-纳米管网络。 （NTNWs）。基于甲醇的电氧化作为模型反应，我们利用合成提供的组成自由度来优化金属NTNW的催化性能，这在很大程度上取决于Pd-Pt比率。在我们的系统中，发现Pd 20 Pt 80-NTNW的表面归一化活性最高，与纯Pt相比，峰值电流密度增加了两倍以上。总体而言，我们的反应系统提供了用于制造任意元素组成的复杂Pd-Pt纳米结构的多功能工具包，并且构成了设计新的化学镀合金镀液的起点。Pd 20 Pt 80-NTNW的表面归一化活性最高，与纯Pt相比，峰值电流密度增加了两倍以上。总体而言，我们的反应系统提供了用于制造任意元素组成的复杂Pd-Pt纳米结构的多功能工具包，并且构成了设计新的化学镀合金镀液的起点。Pd 20 Pt 80-NTNW的表面归一化活性最高，与纯Pt相比，峰值电流密度增加了两倍以上。总体而言，我们的反应系统提供了用于制造任意元素组成的复杂Pd-Pt纳米结构的多功能工具包，并且构成了设计新的化学镀合金镀液的起点。