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- Title
An Aqueous Dual‐Ion Battery Cathode of Mn<sub>3</sub>O<sub>4</sub> via Reversible Insertion of Nitrate.
- Authors
Jiang, Heng; Wei, Zhixuan; Ma, Lu; Yuan, Yifei; Hong, Jessica J.; Wu, Xianyong; Leonard, Daniel P.; Holoubek, John; Razink, Joshua James; Stickle, William F.; Du, Fei; Wu, Tianpin; Lu, Jun; Ji, Xiulei
- Abstract
We report reversible electrochemical insertion of NO3− into manganese(II, III) oxide (Mn3O4) as a cathode for aqueous dual‐ion batteries. Characterization by TGA, FTIR, EDX, XANES, EXAFS, and EQCM collectively provides unequivocal evidence that reversible oxidative NO3− insertion takes place inside Mn3O4. Ex situ HRTEM and corresponding EDX mapping results suggest that NO3− insertion de‐crystallizes the structure of Mn3O4. Kinetic studies reveal fast migration of NO3− in the Mn3O4 structure. This finding may open a new direction for novel low‐cost aqueous dual‐ion batteries.
- Subjects
CATHODES; MANGANESE oxides; ELECTROCHEMICAL analysis; NITRATES; FOURIER transform infrared spectroscopy; EMIGRATION &; immigration
- Publication
Angewandte Chemie, 2019, Vol 131, Issue 16, p5340
- ISSN
0044-8249
- Publication type
Article
- DOI
10.1002/ange.201814646