高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (8): 1167.

• 论文 • 上一篇    下一篇

LiCl/NaY主客体复合材料的制备及其湿敏性质

李晓天1, 邵长路1, 丁红1, 张彤2, 李楠1, 裘式纶1, 肖丰收1   

  1. 1. 吉林大学无机合成与制备化学开放研究实验室;
    2. 吉林大学电子工程系, 长春 130023
  • 收稿日期:1999-06-09 出版日期:2000-08-24 发布日期:2000-08-24
  • 通讯作者: 裘式纶(1948年出生),男,博士,教授,博士生导师,从事分子筛定向设计与合成研究.
  • 基金资助:

    国家自然科学基金(批准号:59872012)

Preparation and Humidity Sensitive Property of LiCl/NaY Composite Materials

LI Xiao-Tian1, SHAO Chang-Lu1, DING Hong1, ZHANG Tong-LI Nan2, QIU Shi-Lun1, XIAO Feng-Shou1   

  1. 1. Departmentof Chemistryand Key Laboratory of Inorganic Synthesisand Preparative Chemistry;
    2. Departmentof Electrical Engineering, Jilin University, Changchun 130023, China
  • Received:1999-06-09 Online:2000-08-24 Published:2000-08-24

摘要: 利用热分散法将LiCl分散到NaY分子筛笼形孔道内制备了LiCl/NaY主客体湿敏材料,该材料保持了LiCl体相材料优良的湿敏特性,同时由于分子筛孔道的限域作用及LiCl盐与分子筛载体间的强离子键合作用,克服了LiCl体相材料的某些固有缺陷.分子筛结构对这种主客体材料有很大影响,具有笼形三维孔道结构的分子筛如NaY更适于作主体材料.二维孔道型的ZSM-5及一维直孔道的丝光沸石则效果差得多.

关键词: 分子筛, LiCl, 分散, 电阻型湿敏传感器

Abstract: LiCl/NaY host-guest composite humidity-sensitive materials have been successfully prepared by dispersion of LiCl into the pores of zeolite. X-ray diffraction(XRD) and IRhave been used to investigate this system. LiCl/NaYmaterials can overcome the serious shortcomings of bulk LiCl, such as stability and durability at high humidity and at high temperature, contamination from dust or oil, etc. After a systematic investigation of LiCl/(NaY, ZSM-5, MOR), we have found that NaYis more suitable to be used as hosts, since NaYis characterized by a three-dimensional open framework structure, and composed of interconnected “super” cages.

Key words: Zoelite, Lithium chloride, Dispersion, Humidity sensors

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