| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1499022 | Scripta Materialia | 2013 | 4 Pages |
Abstract
Graphene/MnO2 composite was obtained by hydrothermal oxidation of the Mn-precursor on a graphene surface. The composite showed a fine dispersion of MnO2 nanorods over graphene nanosheets (GNs). The addition of MnO2 to GNs accelerated the oxygen reduction in the cathodes of Li-O2 cells and promoted Li2O2 catalysis efficiently, compared with the pristine GNs. The power densities of the composite and the pristine GNs were 13.27 and 9.72Â mWÂ cmâ2, respectively. In addition, the cell containing GNs/MnO2 electrode exhibited stable cyclic performance.
Related Topics
Physical Sciences and Engineering
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Authors
Ramchandra S. Kalubarme, Chang-Ho Ahn, Chan-Jin Park,