Electrochemical performance of γMnO2 prepared from the active mass of used batteries
| Autor: | N. Chelali, L. Zerroual, A. Bouzid, K. Noufel |
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| Rok vydání: | 2015 |
| Předmět: |
Electrolysis
Proton Chemistry General Chemical Engineering Diffusion Inorganic chemistry Analytical chemistry chemistry.chemical_element 02 engineering and technology General Chemistry Manganese 010402 general chemistry 021001 nanoscience & nanotechnology Electrochemistry 01 natural sciences 0104 chemical sciences law.invention Calculated data law Orthorhombic crystal system Titration 0210 nano-technology |
| Zdroj: | Russian Journal of Applied Chemistry. 88:1711-1717 |
| ISSN: | 1608-3296 1070-4272 |
| DOI: | 10.1134/s1070427215100249 |
| Popis: | We prepared MnO2 by electrolysis of manganese sulfate solution recovered from used batteries and commercial manganese sulfate solution. The comparative study of the two samples using electrochemical techniques in alkaline solution shows that the two samples exhibit the same behavior. From XRD, we identified and indexed both samples by γMnO2 orthorhombic structure. We estimated the proton diffusion coefficient using galvanostatic intermittent titration technique (GITT). Our calculated data are in good agreement with theoretical values for both samples. In addition TG analysis shows the same thermal profile for both samples. |
| Databáze: | OpenAIRE |
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