Co-Doped LaMnO3 Perovskite Structure Nanoparticles as a Bifunctional Electrocatalysts for Oxygen Reduction/Evolution Reactions
Shaik Mahammad Rafi1, Yong Min Kwon2, An Seop Lim3
1Shaik Mahammad Rafi, Department of Advanced Materials Engineering, Kongju National University, Cheonan-si, Chungnam, Republic of Korea.
2Yong Min Kwon, Department of Advanced Materials Engineering, Kongju National University, Cheonan-si, Chungnam, Republic of Korea.
3An Seop Lim, Department of Advanced Materials Engineering, Kongju National University, Cheonan-si, Chungnam, Republic of Korea.
Manuscript received on April 20, 2020. | Revised Manuscript received on May 02, 2020. | Manuscript published on May 10, 2020. | PP: 1060-1064 | Volume-9 Issue-7, May 2020. | Retrieval Number: G5462059720/2020©BEIESP | DOI: 10.35940/ijitee.G5462.059720
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Abstract: Current paper, we have examined lanthanum manganese cobalt (LaMn1-xCoxO3 ) perovskite nanoparticles synthesized by utilizing the sol-gel process and following calcinated at 450 °C for 1h and 900 °C for 7h, respectively. The fabricated alloys show single-phase perovskite structure is an order of LaMn1-xCoxO3 (x = 0, 0.2, 0.4, 0.6, 0.8, 1). The synthesized LaMn1-xCoxO3 perovskite oxide nanoparticles have the crystal structure, and powder morphology properties were investigated by X-ray diffraction (XRD), and field emission scanning electron microscopy (FESEM), respectively. The perovskite structure has been shown to be particularly effective for the catalytic reactions of ORR and OER in alkaline medium. The merged valance transition metal oxides are bifunctional electrocatalysts which give rise to potential candidates, the electrochemical functioning of the LaMn1-xCoxO3 catalyst was entirely investigated. All compounds of ORR polarization curves show that the four-electron pathway, which results in KouteckyLevich is compatible with these perovskite structures. Current work, we describe B-site extend adding of Co ratio into perovskite structure is an appropriate strategy to increase ORR and OER electrocatalytic performance for application in metal-air batteries.
Keywords: Perovskite Structure, Electrochemical Functioning, Bifunctional Electrocatalysts, Metal-air Batteries.
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