The versatility of wet chemical methods has rendered them extremely popular for the preparation of metal nanoparticles with tailored size and shape. This Feature Article reviews the use of N,N‐dimethylformamide (DMF) for the reduction of metal salts, mainly Au and Ag, while also acting as a solvent. Apart from describing the ability of DMF to reduce metal salts, the effect of different parameters, such as the concentration of capping agent and metal precursors, the presence of preformed seeds acting as catalysts or their crystalline structure, on particle morphology are analyzed. Published reports on the use of different capping agents are summarized, with particular emphasis on the role of poly(vinylpyrrolidone) to determine the morphology of the particles. Finally, a brief overview is provided on the modulation of the optical response in DMF‐based metal nanoparticle colloids with tunable size and shape.

中文翻译：

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N，N-二甲基甲酰胺作为金属纳米粒子合成的反应介质

湿法化学方法的多功能性使其在制备具有定制尺寸和形状的金属纳米颗粒方面极为受欢迎。本专题文章回顾了N，N的使用‐二甲基甲酰胺（DMF），用于还原金属盐，主要是金和银，同时还用作溶剂。除了描述DMF还原金属盐的能力之外，还分析了不同参数（例如封端剂和金属前体的浓度，用作催化剂的预制种子的存在或它们的晶体结构）对颗粒形态的影响。总结了有关使用不同封端剂的已发表报告，其中特别强调了聚乙烯吡咯烷酮在确定颗粒形态方面的作用。最后，简要概述了具有可调大小和形状的基于DMF的金属纳米粒子胶体中光学响应的​​调制。