"A facile method to fabricate Al4B2O9 " by Wei WANG, Boya WANG et al.

Article Title

A facile method to fabricate Al₄B₂O₉ whiskers on porous SiC substrates for gas–solid separation

Authors

Wei WANG, Department of Chemical Engineering, College of Environment Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an 710054, China
Boya WANG, Department of Chemical Engineering, College of Environment Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an 710054, China
Hanghui ZHU, Department of Chemical Engineering, College of Environment Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an 710054, China
Hongwei LI, College of Materials Science and Engineering, Chang'an University, Xi'an 710061, China
Shunxi DENG, Department of Chemical Engineering, College of Environment Science and Engineering, Key Laboratory of Subsurface Hydrology and Ecology in Arid Areas, Ministry of Education, Chang'an University, Xi'an 710054, China

Keywords

ceramics, sol–gel process, microstructure, scanning electron microscopy (SEM)

Abstract

Al₄B₂O₉ whiskers on the surface of porous SiC substrates were fabricated by chemical reactions between Al(NO₃)₃ and H₃BO₃, which is a facile method to prepare cilia-like microstructure for gas–solid separation. Scanning electron microscopy (SEM), X-ray diffraction (XRD), and Fourier transform infrared (FTIR) spectroscopy were employed to investigate the structural morphology and phase compositions. Al₄B₂O₉ whiskers with nanometer-sized diameters and micrometer-sized lengths grew on the surface of SiC substrates, and a self-catalytic mechanism was used to explain Al₄B₂O₉ whisker growth.

DOI

https://doi.org/10.1007/s40145-015-0154-0

Publisher

Tsinghua University Press

Recommended Citation

Wei WANG, Boya WANG, Hanghui ZHU et al. A facile method to fabricate Al4B2O9 whiskers on porous SiC substrates for gas–solid separation. Journal of Advanced Ceramics 2015, 4(3): 232-236.

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