Journal
JOURNAL OF MATERIALS CHEMISTRY A
Volume 2, Issue 26, Pages 10257-10262Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4ta00960f
Keywords
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Funding
- Natural Science Foundation of China [21203025, 91127020]
- Strategic Priority Research Program of the Chinese Academy of Sciences [XDA09010400]
- National Key Project on Basic Research [2011CB935904]
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Ternary spinel MFe2O4 (M = Co, Ni) nanoparticles coated on multi-walled carbon nanotubes (MFe2O4/CNTs) were prepared via a simple hydrothermal method. Owing to their favorable structures and desirable bi-functional oxygen reduction and evolution activities, the resulting MFe2O4/CNT (M = Co, Ni) composites as electrocatalysts for the cathodes deliver better electrochemical performance during the discharge and charge processes compared with that of the pure carbon of ketjen black (KB). The good performance can be attributed to the excellent catalytic activity of highly dispersed MFe2O4 (M = Co, Ni) nanoparticles and facile electron transport by supporting CNTs. This preliminary result manifests that the ternary spinel MFe2O4/CNT (M = Co, Ni) composites are promising cathode electrocatalysts for nonaqueous Li-O-2 batteries.
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