Journal of Solid State Electrochemistry

, Volume 16, Issue 4, pp 1447–1452

Nano-sized La0.8Sr0.2MnO3 as oxygen reduction catalyst in nonaqueous Li/O2 batteries

Authors

  • Zhenghao Fu
    • Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New EnergyFudan University
  • Xiujing Lin
    • Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New EnergyFudan University
  • Tao Huang
    • Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New EnergyFudan University
    • Department of Chemistry, Shanghai Key Laboratory of Molecular Catalysis and Innovative Materials, Institute of New EnergyFudan University
Original Paper

DOI: 10.1007/s10008-011-1467-8

Cite this article as:
Fu, Z., Lin, X., Huang, T. et al. J Solid State Electrochem (2012) 16: 1447. doi:10.1007/s10008-011-1467-8

Abstract

Nano-sized La0.8Sr0.2MnO3 prepared by the polyethylene glycol assisting sol–gel method was applied as oxygen reduction catalyst in nonaqueous Li/O2 batteries. The as-synthesized La0.8Sr0.2MnO3 was characterized by X-ray diffraction (XRD), scanning electron microscopy, and Brunauer–Emmet–Teller measurements. The XRD results indicate that the sample possesses a pure perovskite-type crystal structure, even sintered at a temperature as low as 600 °C, whereas for solid-state reaction method it can only be synthesized above 1,200 °C. The as-prepared nano-sized La0.8Sr0.2MnO3 has a specific surface area of 32 m2 g−1, which is much larger than the solid-state one (1 m2 g−1), and smaller particle size of about 100 nm. Electrochemical results show that the nano-sized La0.8Sr0.2MnO3 has better catalytic activity for oxygen reduction, higher discharge plateau and specific capacity.

Keywords

Sol–gel Solid-state reaction Li/O2 Catalytic activity

Copyright information

© Springer-Verlag 2011