...
首页> 外文期刊>Physica, B. Condensed Matter >Determination of size and ordering of pores in mesoporous silica using small angle neutron scattering
【24h】

Determination of size and ordering of pores in mesoporous silica using small angle neutron scattering

机译:小角度中子散射法测定介孔二氧化硅孔的大小和排列

获取原文
获取原文并翻译 | 示例
           

摘要

Small angle neutron scattering (SANS) has been used to study the size and ordering of the pore structure of mesoporous silica. Mesoporous silica was synthesised in the presence of a 16 carbon chain surfactant, cetyl-trimethyl ammonium bromide (CTAB) using the sol-gel method. The SANS patterns of the mesoporous silica were measured on samples before and after calcination. Calcination at 600degreesC for 2 h results in removal of the surfactant template. The SANS study revealed the presence of an ordered pore structure with pore spacing of approximately 3.5 ran. After calcination the pore spacing decreased. Using the SANS technique it was possible to quantify the pore sizes and pore spacing and then determine the wall thickness. (C) 2004 Elsevier B.V. All rights reserved.
机译:小角中子散射(SANS)已用于研究介孔二氧化硅孔结构的尺寸和有序性。使用溶胶-凝胶法在16碳链表面活性剂十六烷基三甲基溴化铵(CTAB)存在下合成介孔二氧化硅。在煅烧之前和之后在样品上测量中孔二氧化硅的SANS图案。在600℃下煅烧2小时导致表面活性剂模板的去除。 SANS研究表明存在有序孔结构,孔间距约为3.5纳米。煅烧后,孔间距减小。使用SANS技术可以量化孔径和孔距,然后确定壁厚。 (C)2004 Elsevier B.V.保留所有权利。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号