Department of Inorganic & Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India.
ChemSusChem. 2011 Mar 21;4(3):317-24. doi: 10.1002/cssc.201000318. Epub 2011 Jan 18.
The development of new synthetic strategies to obtain monodisperse metal nanoparticles on large scales is an attractive prospect in the context of sustainability. Recently, amine-boranes, the classical Lewis acid-base adducts, have been employed as reducing agents for the synthesis of metal nanoparticles. They offer several advantages over the traditional reducing agents like the borohydrides; for example, a much better control of the rate of reduction and, hence, the particle size distribution of metal nanoparticles; diversity in their reducing abilities by varying the substituents on the nitrogen atom; and solubility in various protic and aprotic solvents. Amine-boranes have not only been used successfully as reducing agents in solution but also in solventless conditions, in which along with the reduction of the metal precursor, they undergo in situ transformation to afford the stabilizing agent for the generated metal nanoparticles, thereby bringing about atom economy as well. The use of amine boranes for the synthesis of metal nanoparticles has experienced an explosive growth in a very short period of time. In this Minireview, recent progress on the use of amine boranes for the synthesis of metal nanoparticles, with a focus towards the development of pathways for sustainability, is discussed.
发展新的合成策略以大规模获得单分散金属纳米粒子是可持续性背景下一个吸引人的前景。最近，胺硼烷作为经典的路易斯酸碱加合物，已被用作金属纳米粒子合成的还原剂。与传统还原剂如硼氢化物相比，它们具有多个优势；例如，通过改变氮原子上的取代基，可以更好地控制还原速率，从而控制金属纳米粒子的粒径分布；通过改变氮原子上的取代基，可以改变其还原能力的多样性；并且可以在各种质子和非质子溶剂中溶解。胺硼烷不仅成功地用作溶液中的还原剂，而且还可在无溶剂条件下使用，在这种条件下，随着金属前体的还原，它们会就地转化为生成的金属纳米粒子的稳定剂，从而实现原子经济性。在很短的时间内，胺硼烷在金属纳米粒子合成中的应用经历了爆炸式增长。在这个简介中，讨论了胺硼烷在金属纳米粒子合成中的最新进展，重点是发展可持续性途径。
