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Preparation of needle-like TiO2/Graphene for electrical conductive analysis
- Source :
- Journal of Materials Science. 55:670-679
- Publication Year :
- 2019
- Publisher :
- Springer Science and Business Media LLC, 2019.
-
Abstract
- The needle-like TiO2 obtained by hydrothermal treatment combines with Graphene by adding cetyltrimethylammonium bromide (CTAB) as auxiliary dispersant. On this basis, the needle-like TiO2/Graphene composite conductive material was prepared which is increasing the compatibility of conductive Graphene. The growth mechanism of the needle-like TiO2/Graphene was discussed and supported by scanning electron microscopy, transmission electron microscopy and other test methods. Experimental results show that hydrothermal temperature has a great influence on the formation of needle-like TiO2. The quick electron transportation properties between TiO2 and Graphene make the TiO2/Graphene have excellent conductive ability. Needle-like TiO2 can facilitate electron transport on the layer of Graphene. The three-dimensional mesh structure formed by crisscross of needle-like TiO2 is attached to the Graphene surface by the auxiliary effect of CTAB, is forming a conductive network to increase the transmission rate of electrons, so that the TiO2/Graphene is endowed with good electrical conductivity. Finally, the resistivity of TiO2/Graphene is as low as 1.655 × 10−3 Ω m at 7 wt% Graphene, which conforms to the electrical conductive standard of the materials prepared by the factory.
- Subjects :
- Materials science
Scanning electron microscope
Graphene
020502 materials
Mechanical Engineering
Composite number
02 engineering and technology
Electron
Hydrothermal circulation
law.invention
0205 materials engineering
Mechanics of Materials
Transmission electron microscopy
law
Electrical resistivity and conductivity
General Materials Science
Composite material
Electrical conductor
Subjects
Details
- ISSN :
- 15734803 and 00222461
- Volume :
- 55
- Database :
- OpenAIRE
- Journal :
- Journal of Materials Science
- Accession number :
- edsair.doi...........75b875e04874d8ed9c8c8a1f17331dc6