Ni Mei, Sun Lizhi, Liu Ben
Key Laboratory of Green Chemistry and Technology of Ministry of Education, College of Chemistry, Sichuan University, Chengdu 610064, China.
J Phys Chem Lett. 2022 May 26;13(20):4410-4418. doi: 10.1021/acs.jpclett.2c01092. Epub 2022 May 12.
Mesoporous metal nanostructures have offered multiple advantages that cannot be realized elsewhere. These materials have been attracting more research attention in catalysis and electrocatalysis owing to their functional structures and compositions. Of the various mesoporous metals available, mesoporous gold (mesoAu) nanostructures are of special interest in surface-enhanced Raman scattering (SERS) and related applications because of their strong electromagnetic field (localized surface plasmon resonance). In the last few decades, various synthesis strategies have been developed to prepare mesoAu nanostructures with controllable morphologies that exhibit fascinating physicochemical properties and increase applications in SERS, catalysis, and electrocatalysis. In this Perspective, we systematically summarize recent advances in synthesis and applications of mesoAu nanostructures. Four synthesis strategies, including dealloying, nanocasting, electrochemical deposition, and intermediate template, are discussed in detail. Moreover, physicochemical properties and promising applications of mesoAu nanostructures are presented. Finally, we describe current challenges and give a general outlook to explore further directions in synthesis and applications of mesoAu nanostructures.
介孔金属纳米结构具有多种其他材料无法实现的优势。由于其功能结构和组成，这些材料在催化和电催化领域吸引了越来越多的研究关注。在现有的各种介孔金属中，介孔金（mesoAu）纳米结构因其强电磁场（局域表面等离子体共振）而在表面增强拉曼散射（SERS）及相关应用中备受关注。在过去几十年里，人们开发了各种合成策略来制备具有可控形态的介孔金纳米结构，这些结构展现出迷人的物理化学性质，并在SERS、催化和电催化领域的应用不断增加。在这篇综述中，我们系统地总结了介孔金纳米结构在合成和应用方面的最新进展。详细讨论了四种合成策略，包括脱合金法、纳米铸造法、电化学沉积法和中间模板法。此外，还介绍了介孔金纳米结构的物理化学性质和有前景的应用。最后，我们描述了当前面临的挑战，并对介孔金纳米结构的合成和应用的进一步发展方向进行了展望。
