Low temperature synthesis of nano porous 12CaO∙7Al₂O₃ powder by hydrothermal method

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• 作者：Karim Khan ; Jia Li 李佳 ; Wenwei Zou ; Wei Xu…
• 关键词：Key wordsC12A7 ; hydrothermal method ; low temperature ; nano pore
• 刊名：Journal of Wuhan University of Technology-Mater. Sci. Ed.
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：31
• 期：6
• 页码：1201-1205
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Materials Science, general;
• 出版者：Wuhan University of Technology
• ISSN：1993-0437
• 卷排序：31

文摘

Single-phase insulating 12CaO∙7Al₂O₃ (C12A7) powder was synthesized using an optimized hydrothermal method. Pure phase of C12A7 was got at a comparatively lower temperature (c.a. 300 °C) than that has been previously reported. The crystallite size of the synthesized C12A7 powder was 7±2 nm. The surface area values calculated for all the samples at a synthesis temperature range of 250-800 °C for 5 h were in the range of about 19-24 m2/g, with pore sizes of 12-20 nm. This low-temperature-based synthetic strategy along with nano porous structures and a high surface area value can facilitate catalyst application.