液晶相中金纳米粒子的原位合成  

In-situ synthesis of gold nanoparticles in liquid crystal phases

作　　者：李辰悦 苑晓[2] 陈寅杰 张帅峰 张兰英[2] LI Chenyue;YUAN Xiao;CHEN Yinjie;ZHANG Shuaifeng;ZHANG Lanying(College of Material Science and Engineering,University of Science and Technology Beijing,Beijing 100083,China;School of Materials Science and Engineering,Peking University,Beijing 100871,China;School of Printing and Packaging Engineering,Beijing Institute of Graphic Communication,Beijing 102600,China)

机构地区：[1]北京科技大学材料科学与工程学院,北京100083 [2]北京大学材料科学与工程学院,北京100871 [3]北京印刷学院印刷与包装工程学院,北京102600

出　　处：《液晶与显示》2025年第2期369-376,共8页Chinese Journal of Liquid Crystals and Displays

基　　金：国家重点研发计划(No.2023YFB3812800);国家自然科学基金(No.51272026,No.U22A20163)。

摘　　要：为解决纳米粒子在液晶中的分散性问题,提高液晶相的稳定性,本文创新性地提出了一种在液晶中原位合成纳米粒子的方法。以贵金属乙酸盐为前驱体和还原剂,以液晶为模板和保护剂,控制不同条件,如反应温度、前驱体浓度等,制备了不同粒径和形态的金纳米粒子,并研究了其对液晶相转变行为和蓝相温域的影响。在液晶蓝相中原位合成了7.0 nm的金纳米粒子,纳米粒子分散均匀,蓝相温域拓宽了20%。这种在液晶中原位合成纳米粒子的方法为无机纳米和有机材料复合提供了新的思路和应用。In order to solve the problem of nanoparticle dispersion in liquid crystal and improve the stability of liquid crystal phase,this paper innovatively proposed a method for in-situ synthesis of nanoparticles.Using noble metal acetate as precursor and reducing agent,liquid crystal as template and protective agent,and controlling different conditions such as reaction temperature and precursor concentration,gold nanoparticles with different particle sizes and morphologies were prepared,and their effects on liquid crystal phase transition behavior and blue phase temperature range were studied.By in-situ synthesizing 7.0 nm gold nanoparticles in the blue phase of liquid crystal,the nanoparticles are evenly dispersed and the blue phase temperature range is widened by 20%.This method of in-situ synthesis of nanoparticles in liquid crystals provides new ideas and applications for the composite of inorganic nano and organic materials.

关 键 词：液晶 原位合成 纳米粒子 蓝相 

分 类 号：O753.2[理学—晶体学]