Journal
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume 164, Issue 13, Pages F1483-F1488Publisher
ELECTROCHEMICAL SOC INC
DOI: 10.1149/2.1781713jes
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Funding
- National Natural Science Foundation of China [51373086]
- Postdoctoral Innovation Project of Shandong province [201402016]
- Foundation of State Key Laboratory of Coal Conversion [J14-15-903]
- Qingdao Postdoctoral Fellowship
- Malmstrom Endowment Fund at Hamline University
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Ag-MFe2O4 (M = Co, Mn) nanocomposites were synthesized and loaded onto carbon supports. As-prepared Ag-MFe2O4/C demonstrated higher catalytic activity for oxygen reduction reaction (ORR) than Ag+MFe2O4/C. The direct coupling and electron transfer between Ag and MFe2O4 in nanocomposites were proposed to enhance their catalytic activities. The Koutecky-Levich plots confirmed a direct four-electron reaction pathway for the ORR on Ag-MFe2O4/C. Furthermore, Ag-MFe2O4/C showed superior catalytic activities and excellent stability for oxygen evolution reaction (OER). Thus, Ag-MFe2O4/C nanoparticle are potential non-Pt candidates with bi-functional catalytic activity for ORR and OER. (c) 2017 The Electrochemical Society. All rights reserved.
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