Diamondoid‐Structured Cu–Dicarboxylate‐based Metal–Organic Frameworks as High‐Capacity Anodes for Lithium‐Ion Storage. Issue 11 (7th October 2014)

• Record Type: Journal Article
• Authors: Senthil Kumar, R.; Nithya, C.; Gopukumar, S.; Anbu Kulandainathan, M.
• Is Part Of: Energy technology. Volume 2:Issue 11(2014:Nov.)
• Page Start: 921
• Page End: 927
• Publication Date: 2014-10-07
• Subjects: Energy development -- Periodicals; Power resources -- Periodicals; 333.79
• DOI: 10.1002/ente.201402076
• Languages: English
• ISSNs: 2194-4288

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A versatile electrochemical synthetic route is proposed for the preparation of [Cu₂(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 [Cu₂(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 (≈84 % over 50 cycles). The best reversible capacity of 227 mAh g⁻¹ (approximately 95 % of the theoretical capacity) has been achieved in the first cycle at a current density of 24 mA g⁻¹. An easily scalable electrochemical synthesis of the [Cu₂(C₈H₄O₄)₄]_n metal–organic frameworks is an attractive candidate for use with lithium‐ion batteries.</p> </abstract>