Internal structure control of the TiO₂ nanotubes and polysiloxane nanocomposites by nanosecond pulsed electric field

Peer review under responsibility of The Ceramic Society of Japan and the Korean Ceramic Society.

Figures & data

Fig. 1 SEM images of TNTs: (a) low magnification (5000×), (b) high magnification (100,000×), and (c) TEM image of TNTs.

Fig. 2 X-ray micro CT-scan images of polysiloxane/TNT nanocomposites prepared without an electric field or with different nanosecond pulse electric fields. Cross-section view of (a-1) without electric field for 1 wt.% TNTs, (a-2) nanosecond pulse electric field for 1 wt.% TNTs, (b-1) without electric field for 3 wt.% TNTs, (b-2) nanosecond pulse electric field for 3 wt.% TNTs, (c-1) without electric field for 5 wt.% TNTs, (c-2) nanosecond pulse electric field for 5 wt.% TNTs. And plane view of (a-3) nanosecond pulse electric field for 1 wt.% TNTs, (b-3) nanosecond pulse electric field for 3 wt.% TNTs, (c-3) nanosecond pulse electric field for 5 wt.% TNTs.

Fig. 3 Digital micrographs of polysiloxane/TNT nanocomposites prepared by applying different electric fields; (a-1) without electric field for 1 wt.% TNT, (b-1) without electric field for 3 wt.% TNT, (c-1) without electric field for 5 wt.% for TiO₂ NT, and (a-2) nanosecond pulse field for 1 wt.% TNT, (b-1) nanosecond pulse field for 3 wt% TNT, (c-1) nanosecond pulse field for 5 wt.% TNT.

Fig. 4 UV–vis transmittance of nanocomposites under different electric fields: (a-1) 1 wt.% TNTs, (b-1) 3 wt.% TNTs and (c-1) 5 wt.% TNTs. Diffuse reflectance of nanocomposites containing TNTs without an electric field and with nanosecond pulse field for (a-2) 1 wt.% TNTs, (b-2) 3 wt.% TNTs, and (c-2) 5 wt.% TNTs.

Fig. 5 Electrical resistivities of nanocomposites as a function of TNT content under different electric fields.