writer：Xin Gu a, Jie Yue b, Liang Chen b, Shuo Liu b, Huayun Xu b, Jian Yang *b, Yitai Qian *bc and Xuebo Z
keywords：MnO/N-doped carbon nanorods
source：期刊
specific source：J. Mater. Chem. A, 2015, 3, 1037-1041
Issue time：2015年
MnO nanorods encapsulated by N-doped carbon are prepared, using polypyrrole-coated MnOOH nanorods as both a template and a precursor. The resulting coaxial nanorods have a one-dimensional shape, nanoscale size and an N-doped carbon coating within one particle, which substantially improves their electrochemical performance. As an anode material for lithium-ion batteries, the coaxial nanorods of MnO/N-doped carbon deliver a specific capacity of 982 mA h g?1 at a current density of 500 mA g?1 after 100 cycles, higher than the values for pure MnO nanostructures and MnO/C nanocomposites. At a current density of 5000 mA g?1, the reversible capacity of the coaxial nanorods could be as high as 372 mA h g?1.