Nanoarchitectures for Mesoporous Metals
Nanoarchitectures for Mesoporous Metals
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DOI：
10.1002/adma.201502593
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发表时间：
2016-02-10
影响因子：
29.4
通讯作者：
Yamauchi, Yusuke
中科院分区：
文献类型：
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作者：
Malgras, Victor;Ataee-Esfahani, Hamed;Yamauchi, Yusuke
介孔金属纳米结构领域具有其他地方无法找到的多种优势。与微孔和大孔材料相比，这些材料的电化学性能显着增强，有利于进一步应用。自过去几十年以来，已经开发了各种方法来实现具有可调孔隙率和颗粒形态的窄孔径分布。虽然硬模板提供了一种可靠且直观的合成介孔金属的方法，但该技术的复杂性和有害化学物质的使用促使多个研究小组将重点转向其他方向。例如，软模板（例如，溶致晶体、胶束组装体）和溶液相方法（需要控制还原反应）在可用的成分和形态方面提供了越来越多的可能性。事实上，现在可以将各种金属（Pt、Pd、Au、Ru 等）合成为树枝状、核@壳、空心或多面体纳米颗粒，具有单组分或多组分、合金化或非合金化，具有前所未有的电化学活性。
The field of mesoporous metal nanoarchitectonics offers several advantages which cannot be found elsewhere. These materials have been showcasing impressive enhancements of their electrochemical properties for further implementation, compared to their micro- and macroporous counterparts. Since the last few decades, various methods have been developed to achieve narrow pore size distribution with a tunable porosity and particle morphology. While hard templates offer a reliable and intuitive approach to synthesize mesoporous metals, the complexity of the technique and the use of harmful chemicals pushed several research groups to focus in other directions. For example, soft templates (e.g., lyotropic crystals, micelles assemblies) and solution phase methods (requiring to control reduction reactions) offer more and more possibilities in terms of available compositions and morphologies. Indeed, various metal (Pt, Pd, Au, Ru, etc.) can now be synthesized as dendritic, core@shell, hollow or polyhedral nanoparticles, with single- or multicomponents, alloyed or not, with unprecedented electrochemical activity.