Dealloyed nanoporous materials for electrochemical energy conversion and storage
Dealloyed nanoporous materials for electrochemical energy conversion and storage
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DOI：
10.1016/j.enchem.2022.100069
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发表时间：
2022-01-01
期刊：
影响因子：
25.1
通讯作者：
Ding, Yi
中科院分区：
文献类型：
--
作者：
Sang, Qinqin;Hao, Shuo;Ding, Yi
传统上起源于合金腐蚀研究的去合金化方法是近年来发展起来的一种制备功能性三维纳米多孔材料的方法。由于其独特的三维双连续多孔结构，它们表现出显着的性能，如大表面积，高电导率，高效的传质和高催化活性，使其成为具有巨大应用潜力的先进纳米材料。本文综述了近年来脱合金和脱合金纳米多孔材料在电化学能量转换和储存方面的研究进展。首先概述了现代对脱合金机制的理解，介绍了脱合金纳米多孔材料独特的结构和物理性能。然后，我们讨论了已建立的去合金化技术，以及它们如何使各种各样的纳米多孔材料的通用制造，从一元金属和合金到最新的高熵合金和二维材料。在此基础上，重点介绍了脱合金纳米多孔材料在燃料电池、超级电容器、金属离子电池、碱金属电池、非水金属氧电池、电化学CO2还原和电催化N-2还原等方面的电化学应用。最后，我们讨论了在这一领域仍然存在的挑战，并为未来的研究提供了潜在的方向的观点。
Dealloying, which is traditionally originated in the research of alloy corrosion, has recently been developed as a robust and generic method for fabricating functional 3D nanoporous materials. Endorsed by the unique 3D bicontinuous porous structure, they exhibit remarkable properties such as large surface area, high conductivity, efficient mass transport, and high catalytic activity, which render them as advanced nanomaterials with enormous potential for a variety of applications. In this review, we summarize recent progress in the development of dealloying and dealloyed nanoporous materials for electrochemical energy conversion and storage. Beginning with an overview of the modern understanding of dealloying mechanisms, the unique structural and physical properties of dealloyed nanoporous materials are introduced. Then, we discuss the established dealloying techniques and how they enable the versatile fabrication of a diverse variety of nanoporous materials, ranging from unary metals and alloys to the latest high-entropy alloys and two-dimensional materials. Following that, the electrochemical applications of dealloyed nanoporous materials for fuel cells, supercapacitors, metal-ion batteries, alkali metal batteries, non-aqueous metal-oxygen batteries, electrochemical CO2 reduction, and electrocatalytic N-2 reduction are highlighted. Finally, we discuss remaining challenges in this field and offer perspectives on potential directions for future research.