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羧基修饰SiO₂纳米颗粒阵列在DMF中的组装

Non-close-packed Silica Nanoparticle Arrays Assembled in N,N-Dimethylformamide

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【Author】 AN Yan-qing1,2,3,CHEN Miao1,XUE Qun-ji1(1.State Key Laboratory of Solid Lubrication,Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China; 2.Laboratory of Special Functional Materials,Henan University,Kaifeng 475001,China;3.Graduate University of the Chinese Academy of Sciences,Beijing 100049,China)

【机构】中国科学院兰州化学物理研究所固体润滑重点实验室；中国科学院兰州化学物理研究所固体润滑重点实验室甘肃兰州730000；河南大学特种功能材料重点实验室；河南开封475001；中国科学院研究生院；北京100049；甘肃兰州730000；

【摘要】不需要模板,氨基硅片在SiO2-COOH的DMF溶液中组装,直接得到了SiO2-COOH纳米颗粒的非致密纳米颗粒阵列.纳米颗粒主要是通过氨基与羧基之间的静电作用吸附在基底上的,在热处理后,可能转变为酰胺键,并增强了纳米颗粒阵列的耐酸碱性.表面的官能团提供了进一步组装的平台.更多还原

【Abstract】 A facile and low cost method to form non-close-packed two-dimensional nanoparticle arrays without template was reported;carboxylic acid functionalized silica nanoparticles assembled on amine-terminated silicon substrate in N,N-Dimethylformamide(DMF) through electrostatic interaction.The amidation of nanoparticle arrays can enhance the stability in acidic and alkaline solutions,and the surface functional group can serve as a platform for further assembly.更多还原