高等学校化学学报

高等学校化学学报 ›› 2010, Vol. 31 ›› Issue (6): 1088.

• 研究论文 • 上一篇    下一篇

高温下自生压力原位碳化制取介孔碳

赵君华1,2, 李洪亮1,2, 林青1, 李克训1,2, 彭智2, 赵修松1,2   

  1. 1. 青岛大学纤维新材料与现代纺织国家重点实验室, 培育基地多功能材料研究所,
    2. 化学化工与环境学院, 青岛 266071
  • 收稿日期:2009-11-16 出版日期:2010-06-10 发布日期:2010-06-10
  • 通讯作者: 李洪亮, 男, 博士, 特聘教授, 主要从事多孔功能复合材料研究. E-mail: lhl@qdu.edu.cn
  • 基金资助:

    国家自然科学基金(批准号: 50602028, 20773071)、国家“八六三”计划项目(批准号: 2008AA03Z)、山东省优秀中青年科学家奖励基金(批准号: 2008BS06006)、山东省自然科学基金(批准号: ZR2009FM022)和山东省“泰山学者”工程项目资助.

Mesoporous Carbon Preparation by in-situ Carbonization via a Reaction Under Autogenic Pressure at Elevated Temperature

ZHAO Jun-Hua1,2, LI Hong-Liang1,2*, LIN Qing1, LI Ke-Xun1,2 , PENG Zhi2, ZHAO Xiu-Song1,2   

  1. 1. Institute of Multifunctional Materials, Laboratory of New Fiber Materials and Modern Textile, Growing Basis for State Key Laboratory;
    2. College of Chemistry, Chemical Engineering and Environment, Qingdao University, Qingdao 266071, China
  • Received:2009-11-16 Online:2010-06-10 Published:2010-06-10
  • Contact: LI Hong-Liang. E-mail: lhl@qdu.edu.cn
  • Supported by:

    国家自然科学基金(批准号: 50602028, 20773071)、国家“八六三”计划项目(批准号: 2008AA03Z)、山东省优秀中青年科学家奖励基金(批准号: 2008BS06006)、山东省自然科学基金(批准号: ZR2009FM022)和山东省“泰山学者”工程项目资助.

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被引次数

4

摘要：

以不同配比表面活性剂为软模板合成as-SBA-15, 将其在特制高压釜内, 通过高温自生压力反应(RAPET)使表面活性剂软模板在SBA-15的孔道内原位碳化, 得到碳/介孔二氧化硅复合物, 表面活性剂同时作为模板剂和碳源. 用氢氧化钠溶液腐蚀二氧化硅后得到多孔碳. 氮气吸附脱附测试结果表明, 所得到的碳材料具有较高的比表面积和较窄的孔径分布. 在氮气氛围下煅烧as-SBA-15可使表面活性剂模板挥发.

关键词: 介孔碳; SBA-15; 高温自生压力反应; 碳化; 比表面积

Abstract:

As-prepared SBA-15 synthesized with different contents of surfactant was put into a swagelok-like high pressure reactor to yield a carbon/porous silica composite. The surfactant was then in-situ carbonized and deposited inside the channels of the pores of SBA-15 via a reaction under Autogenic Pressure at Elevated Temperatures(RAPET). The surfactant acted as both soft-template for as-SBA-15 and carbon precursor for the carbon/porous silica composite. Mesoporous carbon was obtained after etching the silica using an H2O/ethanol solution of NaOH. Nitrogen adsorption/desorption measurements show that the carbon materials possess a high surface area and a narrow pore size distribution. The advantage of the RAPET process, which can simplify the experiments, has been verified with control experiments by calcining the as-prepared SBA-15 in a porcelain boat under nitrogen atmosphere.

Key words: Mesoporous carbon; SBA-15; Reaction under autogenic pressure at elevated temperature(RAPET); Carbonization; Specific surface area

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