Covalently Tethered Polyoxometalate–Pyrene Hybrids for Noncovalent Sidewall Functionalization of Single‐Walled Carbon Nanotubes as High‐Performance Anode Material. (8th July 2013)

• Record Type: Journal Article
• Authors: Ma, Dui; Liang, Liying; Chen, Wei; Liu, Haimei; Song, Yu‐Fei
• Is Part Of: Advanced functional materials. Volume 23:Number 48(2013)
• Page Start: 6100
• Page End: 6105
• Publication Date: 2013-07-08
• Subjects: Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adfm.201301624
• Languages: English
• ISSNs: 1616-301X

Abstract

<abstract abstract-type="main" xml:lang="en"> <title>Abstract</title> <p>A covalently tethered polyoxometalate (POM)–pyrene hybrid (Py–SiW₁₁) is utilized for the noncovalent functionalization of single‐walled carbon nanotubes (SWNTs). The resulting SWNTs/Py–SiW₁₁ nanocomposite shows that both SiW₁₁ and pyrene moieties could interact with SWNTs without causing any chemical decomposition. When used as anode material in lithium‐ion batteries, the SWNTs/Py–SiW₁₁ nanocomposite exhibits higher discharge capacities, and better rate capacity and cycling stability than the individual components. When the current density is 0.5 mA cm⁻², the nanocomposite exhibits the initial discharge capacity of 1569.8 mAh g⁻¹, and a high discharge capacity of 580 mAh g⁻¹ for up to 100 cycles.</p> </abstract>