The Effect of Calcination Temperature on Electrochemical Performance of Porous LaMnO3 Catalyst in Al-Air Battery
| Autor: | Jie Yu, Yue Chun Wang, Fu Wei Xiang, Hui Wen Ma, Yu Dong Shang, Hui Zhang, Xiu Hua Chen |
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| Rok vydání: | 2017 |
| Předmět: |
Materials science
Scanning electron microscope Mechanical Engineering Analytical chemistry 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences Catalysis law.invention Mechanics of Materials law General Materials Science Calcination Cyclic voltammetry 0210 nano-technology Porosity Polarization (electrochemistry) Template method pattern |
| Zdroj: | Key Engineering Materials. 727:657-662 |
| ISSN: | 1662-9795 |
| DOI: | 10.4028/www.scientific.net/kem.727.657 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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