物理化学学报 >> 2011, Vol. 27 >> Issue (07): 1772-1776.doi: 10.3866/PKU.WHXB20110613

材料物理化学 上一篇    下一篇

有序介孔碳负载Fe、Co、Ni纳米晶的软模板合成及其表征

李健生, 顾娟, 凌晓凤, 孙秀云, 沈锦优, 韩卫清, 王连军   

  1. 南京理工大学环境与生物工程学院, 南京 210094
  • 收稿日期:2010-12-27 修回日期:2011-03-06 发布日期:2011-06-28
  • 通讯作者: 王连军 E-mail:wanglj@mail.njust.edu.cn
  • 基金资助:

    国家自然科学基金(51078184), 高等学校科技创新工程重大项目培育项目(708049), 江苏省自然科学基金(BK2009392)和南京理工大学自主科研专项计划项目(2010ZDJH03)资助

Synthesis of Ordered Mesoporous Carbon Loaded Fe, Co, Ni Nanocrystals by the Soft Templating Route and Their Characterization

LI Jian-Sheng, GU Juan, LING Xiao-Feng, SUN Xiu-Yun, SHEN Jin-You, HAN Wei-Qing, WANG Lian-Jun   

  1. School of Environmental and Biological Engineering, Nanjing University of Science and Technology, Nanjing 210094, P. R. China
  • Received:2010-12-27 Revised:2011-03-06 Published:2011-06-28
  • Contact: WANG Lian-Jun E-mail:wanglj@mail.njust.edu.cn
  • Supported by:

    The project was supported by the National Natural Science Foundation of China (51078184), Cultivation Fund of the Key Scientific and Technical Innovation Project, Ministry of Education of China (708049), Natural Science Foundation of Jiangsu Province, China (BK2009392) and Research Funding of Nanjing University of Science and Technology, China (2010ZDJH03).

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摘要：

报道了在有序介孔碳基体中一步合成负载Fe、Co、Ni纳米晶的方法. 以间二苯酚和甲醛为碳源, F127为模板剂, Fe、Co、Ni的硝酸盐为前驱体, 通过软模板组装路线在酸性条件下合成了负载型有序介孔碳复合材料. 采用X射线衍射(XRD)、透射电镜(TEM)和氮气吸附等手段对所合成材料进行了表征. 结果表明: 合成的材料具有类似于SBA-15的有序介孔结构, 有序介孔碳负载Fe、Co、Ni纳米晶复合材料的比表面积分别为586、626和698 m2·g-1. XRD和TEM表征结果证实了金属物种以高分散纳米晶的形式分布在介孔碳基体中.

关键词: 有序介孔碳, 纳米晶, 复合材料, 软模板, 合成

Abstract:

We report a one-step method for the synthesis of M(Fe, Co, Ni) nanocrystals supported by ordered mesoporous carbon (OMC) materials. M/OMC composites were obtained by the soft templating route under acidic conditions using resorcinol and formaldehyde as carbon precursors, triblock copolymer Pluronic F127 as a template and Fe, Co, Ni nitrates as metal precursors. The as-synthesized materials were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM) and N2 adsorption. Characterization revealed that the as-synthesized materials possessed an ordered hexagonal mesoporous structure similar to SBA-15. The specific surface areas of the Fe/OMC, Co/OMC, and Ni/OMC composites were found to be 586, 626, and 698 m2·g-1, respectively. The fact that the metal species were present as highly dispersed nanocrystals in the OMC matrix was confirmed by XRD and high-resolution TEM.

Key words: Ordered mesoporous carbon, Nanocrystal, Composite, Soft template, Synthesis