Polypyrrole layer coated MnOx/Fe2O3 nanotubes with enhanced electrochemical performance for lithium ion batteries

MnOX/Fe2O3/polypyrrole nanotubes have been fabricated by a facile method, which involves a hydrothermal method, chemical solution route, annealing process and a subsequent chemical polymerization method. Electrochemical measurement shows that MnOx/Fe2O3/Polypyrrole nanotubes display excellent electrochemical properties. A reversible specific capacity of 1060 mAh g(-1) is achieved after 100 cycles at the current density of 200 mAg(-1). Even at higher current density of 5000 mAg(-1), the specific capacity of the electrode can be kept at 630 mA h g(-1). The excellent electrochemical performances are ascribed to the synergetic effect of different components and the conductive polypyrrole layer. (C) 2017 Elsevier B.V. All rights reserved.