Millstone Jill E, Hurst Sarah J, Métraux Gabriella S, Cutler Joshua I, Mirkin Chad A
Department of Chemistry and International Institute of Nanotechnology 2145 Sheridan Road, Evanston, IL 60208, USA.
Small. 2009 Mar;5(6):646-64. doi: 10.1002/smll.200801480.
It is now well-known that the size, shape, and composition of nanomaterials can dramatically affect their physical and chemical properties, and that technologies based on nanoscale materials have the potential to revolutionize fields ranging from catalysis to medicine. Among these materials, anisotropic particles are particularly interesting because the decreased symmetry of such particles often leads to new and unusual chemical and physical behavior. Within this class of particles, triangular Au and Ag nanoprisms stand out due to their structure- and environment-dependent optical features, their anisotropic surface energetics, and the emergence of reliable synthetic methods for producing them in bulk quantities with control over their edge lengths and thickness. This Review will describe a variety of solution-based methods for synthesizing Au and Ag triangular prismatic structures, and will address and discuss proposed mechanisms for their formation.
如今众所周知，纳米材料的尺寸、形状和组成会极大地影响其物理和化学性质，并且基于纳米级材料的技术有潜力变革从催化到医学等各个领域。在这些材料中，各向异性粒子尤其令人感兴趣，因为此类粒子对称性的降低常常会导致新的、不同寻常的化学和物理行为。在这类粒子中，三角形金和银纳米棱柱因其依赖于结构和环境的光学特性、各向异性表面能以及出现了可靠的合成方法来大量生产它们并控制其边长和厚度而脱颖而出。本综述将描述多种基于溶液的合成金和银三角形棱柱结构的方法，并阐述和讨论其形成的推测机制。
