Intan Zaine

Universiti Teknologi MARA | UiTM · Faculty of Applied Sciences

MWCNTs-PANi nanocomposite thin film has been prepared by using alternating current electrophoretic deposition (AC-EPD) technique. The AC-EPD technique is used in aqueous suspension to avoid damage film deposited caused by the decomposition of water. The frequency and the waveform used in EPD process were 1 kHz and rectangular signal respectively. A...

Multi-walled carbon nanotubes (MWCNTs) is widely used as supercapacitor electrode material. However, the specific capacitance of MWCNTs cannot achieve optimum value to facilitate required demand. Conducting polymers have been introduced to achieve optimum energy density and power density of supercapacitor electrode material. Previous work had demon...

Electrophoretic deposition (EPD) is a technique that uses electric field to deposit particles onto a conductive substrate. In this study, EPD technique has been utilized for fabrication of acid functionalized multi-walled carbon nanotubes (f-MWCNTs) and polyaniline (PANi) or denoted as (f-MWCNTs-PANi) nanocomposite film. The nanocomposite was prepa...

The modification of multi-walled carbon nanotubes (MWCNTs) via HNO3:HCl (3:1 v/v) acid treatment was investigated. Commercial MWCNTs was refluxed in the acid mixture for 6 hours at 60°C and the final products was denoted as modified MWCNTs. The morphology and structural properties were characterized via FESEM and RAMAN spectroscopy respectively. Ni...

The MWCNTs was functionalized by refluxing commercial MWCNTs (a-MWCNTs) in concentrated HNO3/H2SO4 (3:1 v/v) at 100°C for 6 hours. The dispersion of a-MWCNTs and functionalized MWCNTs (f-MWCNTs) were observed after 1 hour sonication in ethanol. Both samples were characterized by UV-vis spectroscopy for dispersion behavior. The dried f-MWCNTs and a-...

The aim of this research is to develop vapor sensor system which works at room temperature. The development of system was used to test vapor sensing properties of tungsten organometallic-PANi thin film towards isopropanol and ethanol vapors. Tungsten organometallic solution was prepared by sol gel method. Commercial PANi powder were directly added...

Tungsten organometallic sol and tungsten organometallic-PANi sol were deposited onto SiO2 coated silicon substrates by a sol-gel spin coating technique. SEM studies on tungsten organometallic film show that it consists of many hollows compared to tungsten organometallic doped 1 wt.% PANi while SEM studies on tungsten organometallic doped 4 wt.% PAN...

Tungsten organometallic sol and tungsten-organometallic-PANi sol were deposited onto silicon substrates by a sol-gel spin coating technique. XRD characterization showed that the WO3 monoclinic crystal structure was formed after WO3 powder was annealed at 400 °C for 2 hours. Microstructural studies by SEM indicate that addition of commercial polyani...