Journal
ENERGY TECHNOLOGY
Volume 2, Issue 11, Pages 921-927Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/ente.201402076
Keywords
copper terephthalate; electrochemistry; energy storage; lithium-ion batteries; metal-organic frameworks
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Funding
- CSIR, New Delhi
- Department of Science and Technology, India
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A versatile electrochemical synthetic route is proposed for the preparation of [Cu-2(C8H4O4)(4)](n) metal-organic frameworks. The synthesized composites are characterized by using XRD, SEM, FTIR, and Brunauer-Emmett-Teller (BET) surface analysis. The average particle size was measured to be 8.27 nm and the pore size determined to be 14.06 nm. Here, for the first time, we demonstrate the Cu-based metal-organic frameworks [Cu-2(C8H4O4)(4)](n) as a new class of porous crystalline materials that have the ability to reversibly store Li+ ions. Galvanostatic charge/discharge studies suggest that the terephthalate network reversibly reacts with Li and shows high capacity retention (approximate to 84% over 50 cycles). The best reversible capacity of 227 mAhg(-1) (approximately 95% of the theoretical capacity) has been achieved in the first cycle at a current density of 24 mAg(-1). An easily scalable electrochemical synthesis of the [Cu-2(C8H4O4)(4)](n) metal-organic frameworks is an attractive candidate for use with lithium-ion batteries.
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