...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Non-Crystalline Solids: A Journal Devoted to Oxide, Halide, Chalcogenide and Metallic Glasses, Amorphous Semiconductors, Non-Crystalline Films, Glass-Ceramics and Glassy Composites >Use of isoelectric point and pH to evaluate the synthesis of a nanotubular aluminosilicate
【24h】

Use of isoelectric point and pH to evaluate the synthesis of a nanotubular aluminosilicate

机译：利用等电点和pH值评估纳米管硅铝酸盐的合成

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

To follow the synthesis of imogolite, transmission electron microscopy is needed. In this paper, the isoelectric point (IEP) and the aging pH are proposed as alternative methods. Two synthetic procedures were used (S-I and S-II), both involving a co-precipitation followed by an aging treatment where the aluminosilicate evolves from proto-imogolite (detected after the co-precipitation step), to imogolite; its formation is reached after 120 h (S-I) or 168 h (S-II) of aging, depending on the co-precipitation method used. In S-I the isoelectric point increases from 7.1 to 10.5, while in S-II it increases from 6.6 to 9.2 during the aging treatment. Additionally, a linear relationship between the IEP and the pH at different aging steps was found. That relationship may be used to follow the process of synthesis by simply measuring the pH, becoming an alternative to more complex methods.
机译：为了跟随卵黄石的合成，需要透射电子显微镜。本文提出了等电点（IEP）和老化pH值作为替代方法。使用了两种合成程序（S-I和S-II），两者均涉及共沉淀，然后进行时效处理，其中硅铝酸盐从原辉发岩（在共沉淀步骤后被检测到）演变为伊闪石。在老化120小时（S-I）或168小时（S-II）之后，其形成取决于所使用的共沉淀方法。在S-I中，等电点从7.1增加到10.5，而在S-II中，等电点在老化过程中从6.6增加到9.2。此外，在不同的老化步骤下，IEP与pH之间存在线性关系。通过简单地测量pH值，该关系可用于遵循合成过程，从而成为更复杂方法的替代方法。

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