Green Synthesis of Catalytic 3D Platinum Nanostructures from a Body-Centered Cubic Pluronic Micellar Array Template

IF 4.3 3区材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Advanced Materials Interfaces Pub Date : 2024-09-19 DOI:10.1002/admi.202400446

Nicola Antonio Di Spirito, Wanli Liu, Stephen Williams, Adam M. Squires, Mirella Di Lorenzo

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Abstract

Ordered and well-interconnected 3D electrode nanostructures open up exciting perspectives in catalysis, sensing and energy harvesting. Here, highly ordered 3D nano-sized Pt mesoporous structures based on the I-Wrapped Package (I-WP) architecture with 13.5 nm unit cell size, previously unreported for metal nanomaterials, are presented. The samples are synthetized by soft-template electrodeposition, using the body-centred cubic (BCC) lyotropic crystalline micellar phase of Pluronic F68 as the template. The specific surface area of the resulting Pt nanoarchitecture is 36 ± 13 m² g⁻¹. The oxygen reduction reaction kinetic current is 0.98 mA cm⁻²; the current density normalized by the electrochemical active surface area and the weight of deposited Pt are 0.92 mA cm⁻² and 153.53 A g⁻¹, respectively, showing superior properties than conventional Pt nanostructures produced by surfactant templates. These results suggest a nanostructure based on the topology of the I-WP minimal surface, representing the first case at this length scale from a metallic material, opening up new research directions in fundamental physics based on predicted thermal and phononic properties for this topology. The water-based template provides a chemical-free, eco-friendly route for ordered mesoporous conductive nanomaterials manufacturing, inspiring future trends in the field.

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利用体心立方质子胶束阵列模板绿色合成催化三维铂纳米结构

有序且连接良好的三维电极纳米结构为催化、传感和能量收集领域开辟了令人兴奋的前景。本文介绍了基于 I 包裹（I-WP）结构的高度有序的三维纳米尺寸铂介孔结构，其单胞尺寸为 13.5 nm，这是以前从未报道过的金属纳米材料。样品以 Pluronic F68 的体心立方（BCC）各向同性结晶胶束相为模板，通过软模板电沉积法合成。所得铂纳米结构的比表面积为 36 ± 13 m2 g-1。氧还原反应动力学电流为 0.98 mA cm-2；按电化学活性表面积和沉积铂重量归一化的电流密度分别为 0.92 mA cm-2 和 153.53 A g-1，与传统的以表面活性剂为模板的铂纳米结构相比，显示出更优越的性能。这些结果表明了一种基于 I-WP 最小表面拓扑结构的纳米结构，代表了金属材料在此长度尺度上的首例，为基于此拓扑结构的热学和声学特性预测开辟了新的基础物理学研究方向。水基模板为有序介孔导电纳米材料的制造提供了一条无化学腐蚀、生态友好的途径，激发了该领域的未来发展趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Advanced Materials Interfaces CHEMISTRY, MULTIDISCIPLINARY-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

8.40

自引率

5.60%

发文量

1174

审稿时长

1.3 months

期刊介绍： Advanced Materials Interfaces publishes top-level research on interface technologies and effects. Considering any interface formed between solids, liquids, and gases, the journal ensures an interdisciplinary blend of physics, chemistry, materials science, and life sciences. Advanced Materials Interfaces was launched in 2014 and received an Impact Factor of 4.834 in 2018. The scope of Advanced Materials Interfaces is dedicated to interfaces and surfaces that play an essential role in virtually all materials and devices. Physics, chemistry, materials science and life sciences blend to encourage new, cross-pollinating ideas, which will drive forward our understanding of the processes at the interface. Advanced Materials Interfaces covers all topics in interface-related research: Oil / water separation, Applications of nanostructured materials, 2D materials and heterostructures, Surfaces and interfaces in organic electronic devices, Catalysis and membranes, Self-assembly and nanopatterned surfaces, Composite and coating materials, Biointerfaces for technical and medical applications. Advanced Materials Interfaces provides a forum for topics on surface and interface science with a wide choice of formats: Reviews, Full Papers, and Communications, as well as Progress Reports and Research News.