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求一些制备多孔SiC的文章，受实验室条件限制温度不要太高 已有1人参与
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iSCIpapers
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2楼2014-03-10 01:21:02
iSCIpapers
木虫 (正式写手)
大叔还年轻
- 应助: 105 (高中生)
- 金币: 2640.6
- 散金: 138
- 红花: 6
- 帖子: 636
- 在线: 326.1小时
- 虫号: 3021647
- 注册: 2014-03-06
- 性别: GG
- 专业: 电化学
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烽?W戀: 金币+30, ★★★很有帮助 2014-03-10 16:17:24
烽?W戀: 金币+30, ★★★很有帮助 2014-03-10 16:17:24
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这个只要600C 该文的一作好像在海归某高校了 Shi, Y., Zhang, F., Hu, Y. S., Sun, X., Zhang, Y., Lee, H. I., ... & Stucky, G. D. (2010). Low-temperature pseudomorphic transformation of ordered hierarchical macro-mesoporous SiO2/C nanocomposite to SiC via magnesiothermic reduction. Journal of the American Chemical Society, 132(16), 5552-5553. A magnesiothermic reduction synthesis approach is reported for direct conversion of SiO2/C composite nanostructures to corresponding SiC materials without losing their nanostructure morphologies. Crystalline SiC materials can be obtained by this approach at a temperature as low as 600 °C, only approximately half of that applied in the generally used carbothermal reduction and preceramic polymer pyrolysis methods. An ordered hierarchical macro-mesoporous SiC material was synthesized for the first time as a demonstration. This pseudomorphic transformation can be regarded as a general synthesis method for different kinds of SiC nanostructures, and it can also be readily extended to other metal carbide materials as well as TiC. |
3楼2014-03-10 01:24:29
