EDS reveal thin layers of SiO2  modified GO platelets as template in the 3D [email protected] Synthesis

Abstract number
96
Event
European Microscopy Congress 2020
DOI
10.22443/rms.emc2020.96
Corresponding Email
[email protected]
Session
PSA.1 - 1D & 2D Materials
Authors
Dr. Paul HAGHI-ASHTIANI (2), Dr. Yu LIU (1), Dr. Delong HE (1), Dr. Jinbo BAI (2)
Affiliations
1. CentraleSupelec
2. CNRS, CentraleSupelec
Keywords

[email protected]2 hybrid, CVD, SiO2@GO 

Abstract text

A three-dimensional carbon nanotube-graphene oxide hybrid (CNT-SiO2@GO) was synthesized by floating-catalyst chemical vapor deposition (CVD), in which ferrocene was used as catalyst precursor, acetylene as carbon source, respectively. graphene oxide (GO) was pre-treated by tetraethyl orthosilicate (TEOS) to deposit a SiO2 layer on both side of the platelet surface. The morphology, structure and component were investigated by scanning electron microscope, transmission electron microscope and thermogravimetric analysis.  The obtained hybrid has a uniform structure with a platelet sandwiched by aligned CNTs vertical to its surface. The length of CNT can be well controlled by the variation of growth time. The growth mechanism was also elaborated by comparing the GO substrates before and after TEOS treatment.


References

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[2] L. Ci, J. Bai, Novel Micro/Nanoscale Hybrid Reinforcement: Multiwalled Carbon Nanotubes on SiC Particles, Advanced Materials 16(22) (2004) 2021-2024.