Preparation and characterization of carbon nanotube@SiO2 core-shell nanoparticles

Author

Zeng Xiaoliang ; Yu Shuhui ; Sun Rong ; Xu Jianbin

Author_Institution

Center for Adv. Mater., Shenzhen Inst. of Adv. Technol., Shenzhen, China

fYear

2013

fDate

11-14 Aug. 2013

Firstpage

242

Lastpage

246

Abstract

CNTs@SiO₂ core-shell nanoparticles were synthesized via tetraethyl orthosilicate (TEOS) hydrolyzing and condensing on the CNTs´ surface. The effect of reaction parameters, including temperature, time, ratio of the cationic surfactant cetyltrimethyl ammonium bromide (CTAB)/ CNTs, and TEOS/CNTs on the structure of nanoparticles was investigated. Results showed that the optimized temperature, time, ratio of CTAB/CNTs were 30°C, 24 hours, and 1:2, respectively. The controlled thickness of SiO₂ shell, ranging from 0 to 35 nm, can be obtained by controlling the ratio of TEOS/CNTs in the range of 0.1 mL/ to 1.0 mL / 0.1 g. The CNTs@SiO₂ nanoparticles are promising candidate as the fillers for electronic packaging application.

Keywords

carbon nanotubes; electronics packaging; nanoparticles; silicon compounds; surfactants; C; CNT surface; CTAB; SiO₂; carbon nanotube; cationic surfactant cetyltrimethyl ammonium bromide; core-shell nanoparticles; electronic packaging application; reaction parameters; size 0 nm to 35 nm; temperature 30 C; tetraethyl orthosilicate; time 24 h; Carbon nanotubes; Materials; Nanoparticles; Silicon compounds; Surface morphology; Surface treatment; Carbon nanotube@SiO2; Core-Shell; nanoparticles;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Packaging Technology (ICEPT), 2013 14th International Conference on

Conference_Location

Dalian

Type

conf

DOI

10.1109/ICEPT.2013.6756463

Filename

6756463