【作者】 王定胜； 李亚栋；

【Author】 Dingsheng Wang;Yadong Li;Department of Chemistry,Tsinghua University;

【机构】 清华大学化学系；

【摘要】 新合成体系的开发是纳米材料制备中的一个重要环节。我们设计了一个以十八胺同时作为溶剂和表面活性剂的合成体系,以金属无机盐为原料,采用简单便捷的途径制备出了各类单分散纳米晶,包括金属、复合金属氧化物、金属和金属氧化物的异质结构、合金及金属间化合物等。产品形貌均一、分散性好、粒径分布窄,且组成、结构、形貌和尺寸可调。该方法原料价廉易得,工艺简单,生产易于放大,所得产品具有比较大的性能调控空间。该研究工作提供了一种纳米晶材料简便、普适的合成方法,为探索纳米材料在催化、锂离子电池等重要领域的应用提供了材料基础,具有极为广阔的应用前景。更多还原

【Abstract】 New chemical reactions and synthetic systems are of key importance for materials fabrication.In this work,we reported a facile and effective electron-rich synthetic system for various nanocrystals including metals,mixed metal oxides,metal/metal oxide heterostructured nanocrystals,intermetallics and alloys.We found that the products were mainly determined by metal ions used in our synthetic system.The difference was attributed to different ability to attract electrons from octadecylamine(ODA) solvent among these metal ions.This effective system provides a general strategy for various nanocrystals which would find potential applications in many significant fields.更多还原