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Zinc-Air Battery: Understanding the Structure and Morphology Changes of Graphene-Supported CoMn2O4 Bifunctional Catalysts Under Practical Rechargeable Conditions
- Zinc-Air Battery: Understanding the Structure and Morphology Changes of Graphene-Supported CoMn2O4 Bifunctional Catalysts Under Practical Rechargeable Conditions
- 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
- ACS Applied Materials and Interfaces, 6(19), 16545-16555
- Article Type
- Ambient Condition; Bi-Functional Catalyst; Structural Stability; Surface Morphology; Zinc-Air Battery
- 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.
- American Chemical Society
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- Energy Science and EngineeringAdvanced Energy Materials Laboratory1. Journal Articles
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