Nanocomposite composed of multiwall carbon nanotubes covered by hematite nanoparticles as anode material for Li-ion batteries. (20th February 2017)

• Record Type: Journal Article
• Authors: Krajewski, Marcin; Lee, Po-Han; Wu, She-Huang; Brzozka, Katarzyna; Malolepszy, Artur; Stobinski, Leszek; Tokarczyk, Mateusz; Kowalski, Grzegorz; Wasik, Dariusz
• Is Part Of: Electrochimica acta. Volume 228(2017)
• Page Start: 82
• Page End: 90
• Publication Date: 2017-02-20
• Subjects: anode material -- hematite -- Li-ion battery -- multiwall carbon nanotube -- nanocomposite; Electrochemistry -- Periodicals; Electrochemistry, Industrial -- Periodicals; 541.37
• DOI: 10.1016/j.electacta.2017.01.051
• Languages: English
• ISSNs: 0013-4686

Abstract

Abstract: This work describes the detailed studies performed on the nanocomposite composed of chemically-modified multiwall carbon nanotubes covered by hematite nanoparticles which diameters vary from 10 nm to 70 nm. This nanomaterial was fabricated in two-steps facile chemical synthesis and was characterized with the use of several experimental techniques, such as: thermogravimetric analysis, differential thermal analysis, Raman spectroscopy, X-ray diffraction, and transmission Mössbauer spectroscopy in order to determine its structure precisely. Moreover, the investigated nanocomposite was tested as an anode material of Li-ion batteries. Its cycling performance was stable during 40 cycles, while its capacity was retained at the level of 330 and 230 mAh/g at the discharge/charge rate of 25 and 200 mA/g, respectively.