Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6608899 | Electrochimica Acta | 2016 | 28 Pages |
Abstract
Nitrogen doped three-dimensional graphene (N-3DG) with improved catalytic activities and optimized pore structure is prepared through facile hydrothermal and subsequent annealing processes. When employed as a novel free-standing cathode for Li-O2 batteries, its special three-dimensional structure with increased active sites, large pore volume and numerous available macropores and mesopores effectively facilitates the discharge products deposition, oxygen diffusion and electrolyte infiltration. Compared with pristine three-dimensional graphene (3DG), N-3DG delivers a higher specific capacity of 7300 mAh gâ1 at the current density of 50 mA gâ1 and better cycling stability.
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Mu He, Peng Zhang, Li Liu, Bao Liu, Shan Xu,