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| Type |
Poster Presentation |
| Area |
Inorganic Chemistry |
| Room No. |
Exhibition Hall 2+3 |
| Time |
10월 19일 (목요일) 11:00~12:30 |
| Code |
INOR.P-34 |
| Subject |
Anisotropic Proton Conduction in a Channel-Type Metal-Organic Framework MOF-74 |
| Authors |
Sunhyun Hwang, Nak Cheon Jeong1,*
Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology, Korea
1Department of Emerging Materials Science, Daegu Gyeongbuk Institute of Science & Technology, Korea
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| Abstract |
The porosity of metal-organic frameworks (MOFs) has demonstrated its potential, especially, in electrochemical applications such as proton conduction. However, the demonstration of high proton conductivity has been limited only to several MOFs, which possess (i) abundant proton sources in pore and/or framework, (ii) large pores to enable to contain sufficient amount of proton-transporting medium, and importantly (iii) high famework stability against water or acid. Among MOFs that can satisfy the aforementioned factors to attain high proton conductivity are MOF-74 and UiO-66.
In this poster, we present the anisotropic proton conductivity of robust Co-MOF-74 which contains large 1-dimensional channels along c-axis. More precisely, the MOF-74 shows high anisotropy in proton conductivities that are measured along two different directions: parallel and perpendicular to the c-axis. For example, while the conductivity perpendicular to the c-axis under neutral conditions was approximately 10-5 S cm-1, the conductivity parallel to the c-axis exhibited two-order higher value than that of the perpendicular conductivity. Further, we demonstrate that the anisotropic ratios of conductivities are independent on the type of solvent coordinating at Co2+ node.
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| E-mail |
hsh1227@dgist.ac.kr |
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120th General Meeting of the KCS