高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (6): 1010.

• 研究论文 • 上一篇    下一篇

竹炭模板合成高度有序二氧化硅微米线组

邱瑾, 杨儒, 江南, 李敏   

  1. 北京化工大学可控化学反应科学与技术基础教育部重点实验室, 北京100029
  • 收稿日期:2004-10-24 出版日期:2005-06-10 发布日期:2005-06-10
  • 通讯作者: 杨　儒(1963年出生),男,博士,教授,主要从事新型无机纳米材料研究.E-mail:yangru@public.bta.net.cn E-mail:yangru@public.bta.net.cn
  • 基金资助:

    北京市自然科学基金(批准号:2052017)资助.

Synthesis of High Ordered SiO2 Microwires with Bamboo Charcoals as the Template

QIU Jin, YANG Ru, JIANG Nan, LI Min   

  1. Key Laboratory of Science and Technology of Controllable Chemical Reactions of Ministry of Education, Beijing University of Chemical Technology, Beijing 100029, China
  • Received:2004-10-24 Online:2005-06-10 Published:2005-06-10

PDF (PC)

被引次数

15

摘要： 通过扫描电子显微镜(SEM)系统地研究了竹炭的微观结构,并以竹炭孔道为模板,以正硅酸乙酯为硅源,采用溶胶-凝胶法合成出高度有序的二氧化硅微米线组,其形貌和组成分别通过SEM,EDX和XRD进行表征.结果表明,所得微米线为较纯的方石英晶型,直径约1～2μm,长达200μm以上,呈束状高度有序排列,其形貌高度复制了竹炭微孔孔道的结构,说明微孔在限域反应中起模板作用.

关键词: 竹炭, 模板, 微米线, 二氧化硅

Abstract: The microstructrue of bamboo charcoal was studied through SEM and highly ordered SiO2 microwires array were synthesized by using sol-gel method with TEOS as the Si resource and bamboo charcoal as the template. SEM, EDX and XRD techniques were used to characterize the products. The results show that the products were highly pure cristobalite SiO2 microwires with the diameter of 1-2 μm and length over 200 μm, which copied to the structure of micropore precisely. It shows that the micropores of the bamboo charcoal may perform main template function.

Key words: Bamboo charcoal, Template, Microwires, SiO2

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