CAJ | 학술논문

在异丙醇介质中用Frens金溶胶作种子介导合成二氧化硅包覆金( Au@SiO2)纳米粒子。研究结果表明,单核Au@SiO2纳米粒子的产率取决于催化剂用量、硅源加入速率及种子数密度。通过种子数密度控制,合成了高度单分散的粒径为200,320和450 nm的Au@SiO2纳米粒子,以期用作功能材料的理想构筑单元。
재이병순개질중용Frens금용효작충자개도합성이양화규포복금( Au@SiO2)납미입자。연구결과표명,단핵Au@SiO2납미입자적산솔취결우최화제용량、규원가입속솔급충자수밀도。통과충자수밀도공제,합성료고도단분산적립경위200,320화450 nm적Au@SiO2납미입자,이기용작공능재료적이상구축단원。
In this paper, we systematically investigated the synthesis of Au@SiO2 NPs in isopropanol medium using Frens Au colloids as seeds. It shows that the yield of mononucleate Au@SiO2 NPs is dependent on the amount of the catalyst added, the feeding rate of the silicon source, and especially the number density of the Au seeds introduced. Following these findings, highly monodispersed 200, 320, and 450 nm Au@SiO2 NPs were synthesized, which are ideal building blocks for construction of functional materials.