A europium(III) based metal-organic framework: bifunctional properties related to sensing and electronic conductivity

被引:147
作者
Hao, Zhaomin [1 ,2 ]
Yang, Guocheng [3 ]
Song, Xuezhi [1 ,2 ]
Zhu, Min [1 ,2 ]
Meng, Xing [1 ,2 ]
Zhao, Shuna [1 ,2 ]
Song, Shuyan [1 ]
Zhang, Hongjie [1 ]
机构
[1] Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Rare Earth Resource Utilizat, Changchun 130022, Peoples R China
[2] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
[3] Changchun Univ Technol, Sch Chem & Life Sci, Changchun 130012, Peoples R China
基金
国家高技术研究发展计划(863计划); 中国国家自然科学基金;
关键词
LANTHANIDE COORDINATION POLYMERS; ELECTRICAL-CONDUCTIVITY; MAGNETIC-PROPERTIES; SELECTIVE SORPTION; PROTON CONDUCTION; BUILDING-BLOCKS; SINGLE-CRYSTAL; MMX-CHAIN; SITES; DESIGN;
D O I
10.1039/c3ta13179c
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
The accessible interspace of [Eu-4(BPT)(4)(DMF)(2)(H2O)(8)] (EuL) metal-organic framework (MOF) based host materials can serve as good candidates for loading of a variety of guest molecules. In this regard, two functional properties, sensing and electronic conductivity of EuL MOF were systematically studied in this contribution. The photoluminescent properties reveal that the EuL exhibits characteristic red emission of Eu3+ ion, and presents highly detectable luminescence responses for Cu2+ ions and acetone molecules in DMF solution. For the studies of electrical properties, they were focused on the electronic conductivities of I-2-incorporated EuL in anhydrous media and at different temperatures. With the increase of temperature from 25 to 80 degrees C, the I-2-incorporated EuL showed significant changes in conductivities from 8.27 x 10(-7) S cm(-1) to 2.71 x 10(-5) S cm(-1). Meanwhile, the activation energy (E-a) was for the first time estimated for iodine-element-incorporated MOF with the help of Arrhenius plots. The successful achievements of the impedance measurements and analyses for I-2-incorporated EuL prove for the first time that iodine-element-incorporated MOF can also be used for studies of conductivity under anhydrous conditions and at moderate temperature.
引用
收藏
页码:237 / 244
页数:8
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