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无机材料学报

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2009 , Vol. 24 >Issue 1: 23 - 28

DOI: https://doi.org/10.3724/SP.J.1077.2009.00023

研究论文

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 ,
  • 宋 军 ,
  • 姚建峰 ,
  • 李 青 ,
  • 张利雄 ,
  • 刘晓勤 ,
  • 陆现彩
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  • 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

  网络出版日期: 2009-01-20

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

  • WANG Chong-Qing ,
  • SONG Jun ,
  • YAO Jian-Feng ,
  • LI Qing ,
  • ZHANG Li-Xiong ,
  • LIU Xiao-Qin ,
  • LU Xian-Cai
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  • 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 date: 2008-01-18

  Revised date: 2008-05-16

  Online published: 2009-01-20

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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

本文引用格式

王重庆 , 宋 军 , 姚建峰 , 李 青 , 张利雄 , 刘晓勤 , 陆现彩 . 以间苯二酚-甲醛溶胶和MCM-48原粉制备有序介孔炭分子筛[J]. 无机材料学报, 2009 , 24(1) : 23 -28 . DOI: 10.3724/SP.J.1077.2009.00023

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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