高等学校化学学报 ›› 2015, Vol. 36 ›› Issue (11): 2311.doi: 10.7503/cjcu20150685

• 无机化学 • 上一篇    下一篇

层状磷酸铝化合物Na4[Al4P4O18]·H2O的合成及质子电导性能研究

王宁, 孙启明, 颜岩, 刘健聪, 于吉红(), 徐如人   

  1. 吉林大学无机合成与制备化学国家重点实验室, 化学学院, 长春 130012
  • 收稿日期:2015-09-06 出版日期:2015-11-10 发布日期:2015-10-26
  • 作者简介:联系人简介: 于吉红, 女, 博士, 教授, 博士生导师, 主要从事无机合成与制备化学研究. E-mail:jihong@jlu.edu.cn
  • 基金资助:
    国家自然科学基金(批准号: 91122029, 21320102001)和国家“九七三”计划项目(批准号: 2011CB808703)资助

Organotemplate-free Synthesis and Proton Conduction Properties of a Layered Aluminophosphate Na4[Al4P4O18]·H2O

WANG Ning, SUN Qiming, YAN Yan, LIU Jiancong, YU Jihong*(), XU Ruren   

  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, College of Chemistry,Jilin University, Changchun 130012, China
  • Received:2015-09-06 Online:2015-11-10 Published:2015-10-26
  • Contact: YU Jihong E-mail:jihong@jlu.edu.cn
  • Supported by:
    † Supported by the National Natural Science Foundation of China(Nos.91122029, 21320102001) and the National Basic Research Program of China(No.2011CB808703)

摘要:

在无有机模板剂的条件下, 以Na+离子为结构导向剂, 通过水热合成法制备了一种与利用1,3-丙二胺合成的Uio-14具有相同层结构的二维磷酸铝化合物Na4[Al4P4O18]·H2O(1), 通过单晶X射线衍射确定了其拓扑结构. 利用粉末X射线衍射、 扫描电子显微镜、 电感耦合等离子体( ICP)元素分析和热重分析等对其物理化学性质进行了表征. 结果表明, 化合物1属于单斜晶系, 空间群为P21/c, 晶胞参数a=1.00887(9) nm, b=0.86747(8) nm, c=0.97580(9) nm, V=0.77387(12) nm3, Z=2, 其阴离子层由铝氧三角双锥(AlO5)和磷氧四面体(PO4)构成, 层间通过Na+离子平衡电荷; 与Uio-14相比, 化合物1具有更高的热稳定性, 在400 ℃空气条件下煅烧后结构仍然保持完好. 对化合物1的质子电导性能测试结果表明, 相比于传统的分子筛类材料, 化合物1展现出优异的质子电导性能, 在55 ℃下质子电导率可达到1.19×10-3 S/cm.

关键词: 分子筛, 层状磷酸铝, 质子电导, 水热合成

Abstract:

In the organotemplate-free system, a layered aluminophosphate Na4[Al4P4O18]·H2O(1) was synthesized with Na+ ion as the structure-directing agent under hydrothermal condition. The structure was determined by single-crystal X-ray diffraction, and further characterized by powder X-ray diffraction(PXRD), scanning electron microscopy(SEM), inductively coupled plasma(ICP) and thermal gravimetric(TG) analyses. Compound 1 crystallizes in the monoclinic space group P21/c with a=1.00887(9) nm, b=0.86747(8) nm, c=0.97580(9) nm, V=0.77387(12) nm3, and Z=2, and its framework consists of AlO5 and PO4 units. Compound 1 possesses high thermal stability, and the crystal structure remains unchanged after calcination at 400 ℃ in air. The proton conductivity measurement gives that compound 1 possesses excellent conductivity with σ the value of 1.19×10-3 S/cm when immersed in water at 55 ℃, which is higher than those of traditional zeolitic materials.

Key words: Zeolite, Layered aluminophosphate, Proton conductivity, Hydrothermal synthesis

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