Biomorphic SiC from lotus root--颗粒学报PARTICUOLOGY

Wang, Q., Wang, D., Jin, G., Wang, Y., & Guo, X. (2009). Biomorphic SiC from lotus root. Particuology, 7(3), 199–203. https://doi.org/10.1016/j.partic.2009.01.011

Biomorphic SiC from lotus root

Qing Wang ^a *, Donghua Wang ^b, Guoqiang Jin ^b, Yingyong Wang ^b, Xiangyun Guo ^b

a Northeastern University at Qinhuangdao, Qinhuangdao, 066004, China
b Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Taiyuan 030001, China

10.1016/j.partic.2009.01.011

Volume 7, Issue 3, June 2009, Pages 199-203

Received 5 September 2008, Accepted 18 January 2009, Available online 22 April 2009.

E-mail: wangswork@126.com

Highlights

Abstract

Biomorphic silicon carbide (bioSiC) with macro-channels and alveolate micropores was prepared by spontaneous infiltration of melted silicon into a carbon template derived from lotus root at 1600 °C. The carbon template and purified bioSiC samples were characterized by X-ray diffraction, scanning electron microscopy, camera and mercury intrusion. The results suggest that the bioSiC mainly consists of β-SiC and perfectly replicates the shape and microstructure of the carbon template. The bioSiC has a mean pore diameter of 91.1 μm and a porosity of 50.1%, both similar to those of the carbon template, 92.3 μm and 50.7%, respectively.

Graphical abstract

Keywords

Biomorphic silicon carbide; Lotus root; Silicon infiltration; Microstructure

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