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Zinc-Air Battery: Understanding the Structure and Morphology Changes of Graphene-Supported CoMn2O4 Bifunctional Catalysts Under Practical Rechargeable Conditions

Title
Zinc-Air Battery: Understanding the Structure and Morphology Changes of Graphene-Supported CoMn2O4 Bifunctional Catalysts Under Practical Rechargeable Conditions
Authors
Prabu, M[Prabu, Moni]Ramakrishnan, P[Ramakrishnan, Prakash]Nara, H[Nara, Hiroki]Momma, T[Momma, Toshiyuki]Osaka, T[Osaka, Tetsuya]Shanmugam, S[Shanmugam, Sangaraju]
DGIST Authors
Prabu, M[Prabu, Moni]; Shanmugam, S[Shanmugam, Sangaraju]
Issue Date
2014-10-08
Citation
ACS Applied Materials and Interfaces, 6(19), 16545-16555
Type
Article
Article Type
Article
Keywords
Ambient ConditionBi-Functional CatalystStructural StabilitySurface MorphologyZinc-Air Battery
ISSN
1944-8244
Abstract
Nitrogen-doped/undoped thermally reduced graphene oxide (N-rGO) decorated with CoMn2O4 (CMO) nanoparticles were synthesized using a simple one-step hydrothermal method. The activity and stability of this hybrid catalyst were evaluated by preparing air electrodes with both primary and rechargeable zinc-air batteries that consume ambient air. Further, we investigated the relationship between the physical properties and the electrochemical results for hybrid electrodes at various cycles using X-ray diffraction, scanning electron microscopy, galvanodynamic charge-discharging and electrochemical impedance spectroscopy. The structural, morphological and electrocatalytic performances confirm that CMO/N-rGO is a promising material for safe, reliable, and long-lasting air cathodes for both primary and rechargeable zinc-air batteries that consume air under ambient condition. © 2014 American Chemical Society.
URI
http://hdl.handle.net/20.500.11750/2376
DOI
10.1021/am5047476
Publisher
American Chemical Society
Related Researcher
Files:
There are no files associated with this item.
Collection:
Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles


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