Shape-controlled synthesis of metal nanocrystals: mind the surface heterogeneity
Shape-controlled synthesis of metal nanocrystals: mind the surface heterogeneity
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DOI：
10.1016/j.trechm.2023.08.004
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发表时间：
2023-09
影响因子：
15.7
通讯作者：
Quynh N. Nguyen;Ruhui Chen;Younan Xia
中科院分区：
文献类型：
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作者：
Quynh N. Nguyen;Ruhui Chen;Younan Xia
形状可控的金属纳米晶体由于其增强的催化性能、成本效益和用于机理研究的明确特征而引起了越来越多的兴趣。然而，这些纳米晶体的最终潜力受到其表面异质性的限制。这篇综述深入研究了表面异质性的复杂性，研究其在决定原子沉积的网站，从而在胶体合成过程中的金属纳米晶体的生长模式的作用。我们还强调了表面扩散在保护或覆盖表面异质性的影响中的关键作用，以及整个生长过程中表面结构的动态性质。了解和控制纳米晶的表面非均匀性对于开发先进的催化材料至关重要。
Shape-controlled metal nanocrystals have attracted growing interest due to their enhanced catalytic performance, cost-efficiency, and well-defined features for mechanistic investigations. However, the ultimate potential of these nanocrystals is limited by their surface heterogeneity. This review delves into the intricacies of surface heterogeneity, examining its role in dictating the sites for atom deposition and thereby the growth pattern of metal nanocrystals during colloidal synthesis. We also highlight the critical role of surface diffusion in preserving or overriding the impacts of surface heterogeneity, alongside the dynamic nature of surface structure throughout nanocrystal growth. Understanding and controlling the surface heterogeneity of nanocrystals are essential to the development of advanced catalytic materials.