...
首页> 外文期刊>Journal of Sol-Gel Science and Technology >Organically-Modified Silica Xerogels for Adsorption of CH_4 at 298 K
【24h】

Organically-Modified Silica Xerogels for Adsorption of CH_4 at 298 K

机译:有机修饰的硅胶干凝胶在298 K下吸附CH_4

获取原文
获取原文并翻译 | 示例
           

摘要

Organic tethers have been incorporated into acid- and base-catalysed silica sol-gels.The surface area is modified by this insertion suggesting an interaction at a molecular level.The HCl-catalysed SiO_2 sol-gel had its relative extent of adsorption at 298 K of CH_4 relative to H_2O:(i) depressed by the addition of 5% bis(triethoxysilyl)methane (ii) increased by the addition of 5% bis(trimethoxysilyl)hexane which attributed the tether hydrophilic-lipophilic balance (HLB).The reasons for this unexpected physical adsorption of CH_4 at a temperature far above its boiling point are now being explored,along with the potential of these materials for selective hydrocarbon sensors and separators.
机译:有机系链已被加入到酸和碱催化的二氧化硅溶胶凝胶中。通过这种插入修饰的表面积表明在分子水平上存在相互作用.HCl催化的SiO_2溶胶凝胶在298 K时具有相对吸附程度。 CH_4相对于H_2O的比率:(i)通过添加5%双(三乙氧基甲硅烷基)甲烷而降低(ii)通过添加5%双(三甲氧基甲硅烷基)己烷而增加,这归因于系链亲水亲脂平衡(HLB)。由于目前正在探索在远高于其沸点的温度下CH_4的这种意外的物理吸附,以及这些材料在选择性碳氢化合物传感器和分离器中的潜力。

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