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无机材料学报

无机材料学报

• 研究论文 • 上一篇    下一篇

以间苯二酚-甲醛溶胶和MCM-48原粉制备有序介孔炭分子筛

王重庆1， 宋 军1， 姚建峰1， 李 青1， 张利雄1， 刘晓勤1， 陆现彩2   

  1. 1. 南京工业大学 化学化工学院材料化学工程国家重点实验室， 南京 210009； 2.南京大学 地球科学系， 南京 210093
  • 收稿日期:2008-01-18 修回日期:2008-05-16 出版日期:2009-01-20 网络出版日期:2009-01-20

Synthesis of Ordered Mesoporous Carbons Using Resorcinol-Formaldehyde Sol as the Carbon Source and As-synthesized MCM-48 as the Template

WANG Chong-Qing1, SONG Jun1, YAO Jian-Feng1, LI Qing1, ZHANG Li-Xiong1, LIU Xiao-Qin1, LU Xian-Cai2   

  1. 1. State Key Laboratory of Materials-Oriented Chemical Engineering and College of Chemistry and Chemical Engineering, Nanjing University of Technology, Nanjing 210009, China; 2. Department of Earth Sciences, Nanjing University, Nanjing 210093, China
  • Received:2008-01-18 Revised:2008-05-16 Published:2009-01-20 Online:2009-01-20

PDF (PC)

1761

被引次数

4 | 1

摘要： 以含有机模板的介孔纯硅分子筛MCM-48原粉为模板，以间苯二酚(R)－甲醛溶胶为炭源制备了有序介孔炭分子筛.考察了w(R)/w(MCM-48)和w(R)/w(H2O)对合成介孔炭分子筛的影响.产物用N2吸附/脱附、XRD、SEM、TEM和TG等手段进行了表征.结果表明，w(R)/w(MCM-48)和w(R)/w(H2O)对所得到的介孔炭分子筛的有序性和比表面积有较大的影响.优化的w(R)/w(MCM-48)比为0.50~0.65、w(R)/w(H2O)比为0.15~0.35，此时，能形成比表面积大于1125m2/g、平均孔径在2.2~2.4nm、具有规则介孔结构的炭分子筛，且这种炭分子筛具有高的热稳定性.

关键词: 介孔炭分子筛, MCM-48, 间苯二酚, 甲醛

Abstract: Ordered mesoporous carbons were synthesized by using as-synthesized MCM-48 as the template and resorcinol (R)-formaldehyde sol as the carbon precursor. By changing the molar ratio of resorcinol (R) to template (w(R)/w(MCM-48)) and resorcinol (R) to water(w(R)/w(H2O)), mesoporous carbons with different porosities were produced. The obtained samples were characterized by N2 adsorption-desorption, X-ray diffraction, scanning electron microscopye, transmission electron microscopye and thermogravimetric analysis. It is found that the optimized w(R)/w(MCM-48) and w(R)/w(H2O) ratios are in the rang from 0.50 to 0.65 and from0.15 to 0.35, respectively, and the resulting ordered mesoporous carbons has BET specific surface areas greater than 1125m2/g, mean pore sizes from 2.2 to 2.4nm, and high thermal stability.

Key words: mesoporous carbon, MCM-48, resorcinol, formaldehyde

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