Fast Conduction of Organic Cations in Metal Sulfate Frameworks
Source abstract
Abstract
We demonstrated a new method of synthesizing crystalline organic cation conductors. The conductivities of various organic cations involved in a one-dimensional zinc sulfate framework were studied. The optimized structure (EMIm) 2 [Zn(SO 4 ) 2 ] exhibited an ionic conductivity of 3.8 × 10 –3 S cm –1 at 210 °C, which is comparable to that of highly conductive organic ionic plastic crystals. The high ionic conductivity is attributable to the defect structures of the organic cations in the inorganic frameworks. The pulsed-field gradient solid-state NMR technique revealed that the self-diffusion coefficient of organic cations in the zinc sulfate at 80 °C is comparable to that of the popular ionic liquid EMIm-BF 4 at 30 °C, which indicates that liquid-like fast transporting of organic cation is achieved in the robust crystal structure.
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Research context
OpenAlex topics: Ionic liquids properties and applications · Solid-state spectroscopy and crystallography · Metal-Organic Frameworks: Synthesis and Applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Synthetic Chemistry and Biological Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
Institute for Integrated Cell-Material Sciences (WPI-iCeMS), Kyoto University, Yoshida, Sakyo-ku, Kyoto 606-8501, Japan
DENSO CORPORATION, 1-1 Showa-cho, Kariya, Aichi 448-8661, Japan
Funding
Ministry of Education, Culture, Sports, Science, and Technology · Japan Science and Technology Agency
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