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

Abstract number
European Microscopy Congress 2020
Corresponding Email
[email protected]
PSA.1 - 1D & 2D Materials
Dr. Paul HAGHI-ASHTIANI (2), Dr. Yu LIU (1), Dr. Delong HE (1), Dr. Jinbo BAI (2)
1. CentraleSupelec
2. CNRS, CentraleSupelec

[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.


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