Synthesis of High Surface Area Porous Silicon Carbide by a Modified Sol-Gel Method

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High surface area porous silicon carbide was synthesized by employing polymethylhydrosiloxane (PMHS) as soft template in the sol-gel process. In the sol-gel method, furfuryl alcohol and tetraethoxysilane were used respectively as carbon and silicon precursors for preparing a carbonaceous silica xerogel. PMHS was employed as pore-adjusting agent in the sol-gel process. The purified SiC sample was characterized by XRD、FTIR、SEM、HRTEM and BET. The results show that the SiC products are found to have high specific surface area of 125 m2 /g and an average pore diameter of about 17 nm. PMHS has important effect on the surface area of the SiC products.

Info:

Periodical:

Advanced Materials Research (Volumes 194-196)

Edited by:

Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang

Pages:

562-565

DOI:

10.4028/www.scientific.net/AMR.194-196.562

Citation:

D. H. Wang and X. Fu, "Synthesis of High Surface Area Porous Silicon Carbide by a Modified Sol-Gel Method", Advanced Materials Research, Vols. 194-196, pp. 562-565, 2011

Online since:

February 2011

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$35.00

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