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Spinel-Type Metal Oxide Nanoparticles Supported on Platelet-Type Carbon Nanofibers as a Bifunctional Catalyst for Oxygen Evolution Reaction and Oxygen Reduction Reaction
- Source :
- Electrochemistry, Vol 88, Iss 6, Pp 566-573 (2020)
- Publication Year :
- 2020
- Publisher :
- The Electrochemical Society of Japan, 2020.
-
Abstract
- Development of highly active bifunctional electrocatalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is required for air electrodes of zinc-air secondary batteries (ZAB). In this study, we synthesize spinel-type MnCo2O4 (MCO) nanoparticles on highly graphitized platelet-type carbon nanofibers (pCNF) via a solvothermal method. The pCNF is selected as carbon support in this study because of the excellent stability against anodic degradation under the OER condition. The MCO nanoparticles of 2-5 nm in diameter are uniformly dispersed on pCNF and the catalyst exhibits high activities for ORR due to strong interaction pCNF and MCO, in addition to the improvement of OER activities. The MCO/carbon hybrids show comparable electrocatalytic performances to state-of-the-art bifunctional electrodes for OER and ORR. (C) The Author(s) 2020. Published by ECSJ.
- Subjects :
- Technology
Carbon nanofiber
Physical and theoretical chemistry
QD450-801
Spinel
Oxide
Oxygen evolution
Nanoparticle
engineering.material
Bifunctional catalyst
Platelet-type Carbon Nanofiber
chemistry.chemical_compound
chemistry
Zinc–air battery
Chemical engineering
Spinel-type MnCo2O4
Zinc Air Battery
Electrochemistry
engineering
Bifunctional
Subjects
Details
- ISSN :
- 21862451 and 13443542
- Volume :
- 88
- Database :
- OpenAIRE
- Journal :
- Electrochemistry
- Accession number :
- edsair.doi.dedup.....6c0150190b166b70f8b372117dbd7302