Foo Kai Loong
Thumbnail Image
Preferred name
Foo Kai Loong
Official Name
Foo, Kai Loong
Alternative Name
Loong, Foo Kai
Kai Loong, Foo
Foo, K. L.
Foo, Kai Loong
Foo, Kai Long
Main Affiliation
Scopus Author ID
37012449500
Researcher ID
D-2035-2015

Research Output
Now showing 1 - 2 of 2
Thumbnail Image
Publication

Effective synthesis of silicon carbide nanotubes by microwave heating of blended silicon dioxide and multi-walled carbon nanotube

2017 , Voo Chung Sung Tony , Voon Chun Hong , Lee Chang Chuan , Lim Bee Ying , Subash Chandra Bose Gopinath , Foo Kai Loong , Mohd Khairuddin Md Arshad , Ruslinda A. Rahim , Uda Hashim , Nashaain Mohd Nordin , Yarub Al-Douri

Silicon carbide nanotube (SiCNTs) has been proven as a suitable material for wide applications in high power, elevated temperature and harsh environment. For the first time, we reported in this article an effective synthesis of SiCNTs by microwave heating of SiO2 and MWCNTs in molar ratio of 1:1, 1:3, 1:5 and 1:7. Blend of SiO2 and MWCNTs in the molar ratio of 1:3 was proven to be the most suitable for the high yield synthesis of β-SiCNTs as confirmed by X-ray diffraction pattern. Only SiCNTs were observed from the blend of MWCNTs and SiO2 in the molar ratio of 1:3 from field emission scanning electron microscopy imaging. High magnification transmission electron microscopy showed that tubular structure of MWCNT was preserved with the inter-planar spacing of 0.25 nm. Absorption bands of Si-C bond were detected at 803 cm-1 in Fourier transform infrared spectrum. Thermal gravimetric analysis revealed that SiCNTs from ratio of 1:3 showed the lowest weight loss. Thus, our synthetic process indicates high yield conversion of SiO2 and MWCNTs to SiCNTs was achieved for blend of SiO2 and MWCNTs in molar ratio of 1:3.

View
Thumbnail Image
Publication

The effect of graphite type on the synthesis of SiC nanomaterials by microwave-assisted synthesis

2020-09-01 , Mat Kahar Suhaimi , Voon Chun Hong , Lim Bee Ying , Al-Douri Y. , Subash Chandra Bose Gopinath , Ten S.T. , Mohd Khairuddin Md Arshad , Nor Azizah Parmin , Foo Kai Loong

SiC nanomaterial (SiCNM) is known for its excellent properties and has great potential for a wide range of applications. In this article, preparation of SiCNMs from different types of graphite was performed by microwave-assisted synthesis. Different types of graphite which are graphite flake (GF) and expanded graphite (EG) were used to react with silica for the synthesis of SiCNMs in laboratory microwave furnace at 1400 Â°C. It was found that SiC nanowhiskers (SiCNWs) were formed when EG was used, while irregular shaped SiC nanoparticles (SiCNPs) were formed when GF was used. β-SiC appeared as the only phase in the XRD patterns for both SiCNMs formed using GF and EG. SiCNWs and SiCNPs have interplanar spacing of around 0.25 nm which is the axial direction of [111]. The difference of formation mechanism is believed to be the origin of different morphology of SiCNMs synthesized from different types of graphite.

View