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Abstract:
以淀粉为碳源,正硅酸乙酯(TEOS)为硅源,通过溶胶-凝胶法制备了碳化硅前驱体淀粉-SiO_2凝胶,将干凝胶在氩气氛中进行碳热还原制备碳化硅(SiC).用XRD、IR、SEM、TEM及N_2低温物理吸附等手段对合成的样品进行表征.结果表明,在淀粉-SiO2凝胶中添加镍催化剂在1450℃下就能合成出尺寸大小为40~60nm多孔高比表面积的纳米SiC,其孔径主要集中在4.2和10.6nm,比表面积为127.5m~2/g,孔体积为0.43cm~3/g.
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功能材料
ISSN: 1001-9731
CN: 50-1099/TH
Year: 2009
Issue: 11
Volume: 40
Page: 1847-1849
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count: -1
Chinese Cited Count:
30 Days PV: 3
Affiliated Colleges: