title: Yolk-Shell MnO@ZnMn2O4/N-C Nanorods Derived from α-MnO2/ZIF-8 as Anode Materials for Lithium Ion Batteries.
abstract: Manganese oxides (MnOx) are promising anode materials for lithium ion batteries, but they generally exhibit mediocre performances due to intrinsic low ionic conductivity, high polarization, and poor stability. Herein, yolk-shell nanorods comprising of nitrogen-doped carbon (N-C) coating on manganese monoxide (MnO) coupled with zinc manganate (ZnMn2O4) nanoparticles are manufactured via one-step carbonization of α-MnO2/ZIF-8 precursors. When evaluated as anodes for lithium ion batteries, MnO@ZnMn2O4/N-C exhibits an reversible capacity of 803 mAh g-1at 50 mA g-1after 100 cycles, excellent cyclability with a capacity of 595 mAh g-1at 1000 mAg-1after 200 cycles, as well as better rate capability compared with those non-N-C shelled manganese oxides (MnOx). The outstanding electrochemical performance is attributed to the unique yolk-shell nanorod structure, the coating effect of N-C and nanoscale size.
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China.
authors: Ming
authors: M
authors: Zhong
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China.
authors: Donghui
authors: D
authors: Yang
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China.
authors: Chenchao
authors: C
authors: Xie
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China.
authors: Zhang
authors: Z
authors: Zhang
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China. zhouzhen@nankai.edu.cn.
authors: Zhen
authors: Z
authors: Zhou
authors: School of Materials Science and Engineering, National Institute for Advanced Materials, Tianjin Key Laboratory of Metal and Molecule Based Material Chemistry, Institute of New Energy Material Chemistry, Nankai University, Tianjin, 300350, China. buxh@nankai.edu.cn.|State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China. buxh@nankai.edu.cn.
authors: Xian-He
authors: XH
authors: Bu
keywords: alfa-manganese oxide; anode materials; lithium ion batteries; metal-organic framework; yolk-shell nanorods