| Title |
Efficient Extraction of Mn2+ Ions From the Waste Produced in the Hummers Method for Application in Li-Ion Batteries |
| ID_Doc |
27323 |
| Authors |
Hou, HY; Li, JK; Lan, J; Meng, K; Huang, BX; Li, H |
| Title |
Efficient Extraction of Mn2+ Ions From the Waste Produced in the Hummers Method for Application in Li-Ion Batteries |
| Year |
2023 |
| Published |
Journal Of Electrochemical Energy Conversion And Storage, 20.0, 1 |
| Abstract |
Graphene nanosheets are produced in mass by Hummers method, accompanied with the emission of waste acid effluent with Mn2+, which should be reasonably recycled. Herein, Mn2+ was extracted into Mn3O4 nanoparticles by oxidation precipitation. Desirably, Mn3O4 powders were the spinel crystal phase and the particle size was 100-150 nm. The reversible discharge capacities of Mn3O4 anode maintained 528 mA h/g at 0.5 A/g for 100 cycles and 423 mA h/g at 1.0 A/g for 300 cycles, with high capacity retention ratios of 93.4% and 91.1%, respectively. Obviously, this work may promote the development of the circular economy. |
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