Tsinghua University Press;Heidelberg: Tsinghua University Press
摘要:
摘要： Through in situ redox deposition and growth of MnO 2 nanostructures on hierarchically porous carbon (HPC), a MnO 2 /HPC hybrid has been synthesized and employed as cathode catalyst for non-aqueous Li-O 2 batteries. Owing to the mild synthetic conditions, MnO 2 was uniformly distributed on the surface of the carbon support, without destroying the hierarchical porous nanostructure. As a result, the as-prepared MnO 2 /HPC nanocomposite exhibits excellent Li-O 2 battery performance, including low charge overpotential, good rate capacity and long cycle stability up to 300 cycles with controlling capacity of 1,000 mAh·g −1 . A combination of the multi-scale porous network of the shell-connected carbon support and the highly dispersed MnO 2 nanostructure benefits the transportation of ions, oxygen and electrons and contributes to the excellent electrode performance. 其他題名： Nano Res 出版者： Heidelberg: Tsinghua University Press 出版日期： 2015-01-01 出處： Nano Research, 2015-01, Vol.8 (1), p.156-164 版權： Tsinghua University Press and Springer-Verlag Berlin Heidelberg 2015 識別號： ISSN: 1998-0124 識別號： EISSN: 1998-0000 識別號： DOI: 10.1007/s12274-014-0604-y
