Our website is currently undergoing maintenance. Article records and full texts remain available. Submissions can be made through the Editorial Manager.

PEG-Assisted Synthesis of Manganese Oxide Nanorods and Their Application as Electrode Material for Lithium-Ion Batteries

P. Ragupathy, J. Sundaramurthy, P. Suresh Kumar, V. Thavasi, S. Ramakrishna

Journal of Ceramic Science and Technology, Vol. 4, No. 3 (2013), pp. 157-162

DOI: 10.4416/JCST2013-00007

Download full article (PDF)

Abstract

In this work, we report on large-scale synthesis of α-MnO2 nanorods by the polyol route based on a simple redox reaction using an organic reducing agents potassium permanganate (KMnO4) and polyethylene glycol (PEG). The as-synthesized amorphous MnO2 is converted into crystalline form on annealing at temperature of 600 °C. The formation of MnO2 nanorod-like morphology is confirmed with scanning electron microscopy complemented with high-resolution transmission electron microscopy. The nanorods measure about 50 – 200 nm in length and 50 nm in diameter. The electrochemical lithium intercalation and de-intercalation of nanorods are performed by means of galvanostatic charge-discharge cycling. The initial discharge capacity of nanorod α-MnO2 is found to be about 214 mAh/g-1 with reasonably good rate capability.

Keywords

Manganese oxide, nanorods, lithium-ion batteries

View this issue · Article & DOI index