Journal
MATERIALS TODAY ENERGY
Volume 10, Issue -, Pages 184-190Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.mtener.2018.09.011
Keywords
Electrocatalysis; Oxygen reduction reaction; Cobalt clusters; Nitrogen doped graphene
Funding
- Jiangsu Specially-Appointed Professor program
- National Natural Science Foundation of China [21705115, 21605110]
- Natural Science Foundation of Jiangsu Province of China [BK20170378]
- Singapore Ministry of Education Academic Research Fund (AcRF) [RG111/15, RG10/16, MOE2016-T2-2-004]
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Cobalt based catalysts are promising for oxygen reduction reaction (ORR) for unitized regenerative fuel cells and alkaline metal-air batteries. Herein, we report a novel non-precious ORR catalyst, in which cobalt clusters with a mean size of similar to 2 nm are inlaid into porous nitrogen and sulfur co-doped graphene matrix. Benefiting from the unique structural property of Co clusters and the three-dimensional (3D) hierarchical porous architecture of nitrogen and sulfur codoped graphene, the prepared catalyst exhibits excellent ORR catalytic activity with good methanol tolerance and long-term durability in alkaline environment. (C) 2018 Elsevier Ltd. All rights reserved.
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