The Effect of Calcination Temperature on Electrochemical Performance of Porous LaMnO₃ Catalyst in Al-Air Battery

Abstract:

This study focuses on the development of the pervoskite catalyst for aluminum-air battery. The catalyst powders of porous pervoskite LaMnO₃ were prepared by template method with different calcination temperatures. Material characteristics of prepared samples were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and thermalgravimetry (TG). The half-cell polarization curves and cyclic voltammetry curves were found to be strongly depended on the calcination temperature. The result showed the optimized calcination temperature was 650°C. The full-cell discharge test in NaCl solution (3.5 wt%) with a constant discharge current of 10 mA/cm² was performed at room temperature, and the discharge voltage of sample synthesized under optimized calcination temperature was 0.73 V.

• Periodical: Key Engineering Materials (Volume 727)
• Pages: 657-662
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.727.657
• Online since: January 2017
• Authors: Fu Wei Xiang, Xiu Hua Chen, Hui Wen Ma, Jie Yu, Hui Zhang, Yu Dong Shang, Yue Chun Wang
• Keywords: Air Electrode, Al-Air Battery, Calcination Temperature, Porous LaMnO₃ Catalyst

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