Ag nanocrystals with branched structure have attracted broad interests due to its application in surface enhanced Raman scattering (SERS) and catalysis. Herein, we reported the synthesis of two-dimensional Ag nanoplates with highly branched structure via a seed-mediated method. Systematic studies on kinetic controlled growth were carried out to elucidate the growth mechanism. It was found that such nanostructures could be achieved when the atomic deposition rate was much larger than that of surface diffusion of Ag atoms on the nanoplates, which was fulfilled by the incorporation of Cu in Ag lattice through Cu-UPD. The as-prepared branched Ag nanoplates exhibited superior performance towards the catalytic reduction of nitrophenol.

中文翻译：

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分支的Ag纳米板：抑制表面扩散和硝基苯酚还原的催化活性所决定的合成。

具有分支结构的银纳米晶体由于其在表面增强拉曼散射（SERS）和催化中的应用而引起了广泛的兴趣。在本文中，我们报道了通过种子介导的方法合成具有高度分支结构的二维Ag纳米板。进行了动力学控制生长的系统研究，以阐明生长机理。已经发现，当原子沉积速率远大于纳米板上的Ag原子的表面扩散速率时，可以实现这种纳米结构，这是通过通过Cu-UPD将Cu掺入Ag晶格中来实现的。所制备的支化Ag纳米板在催化还原硝基苯酚方面表现出优异的性能。