Journal
ELECTROCHIMICA ACTA
Volume 418, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.electacta.2022.140339
Keywords
Defects; Doping; Manganese oxides; Ultrathin nanosheets; Asymmetric supercapacitors
Categories
Funding
- Nanjing University [202002B076]
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A one-pot and energy-saving method was developed to manufacture defective manganese oxide materials. The insertion of zinc ions improves manganese oxide conductivity, resulting in a significant increase in the number of defects in the lattice, providing abundant active sites for energy storage.
A one-pot and energy-saving method was developed to manufacture defective manganese oxide materials. The insertion of zinc ions improves manganese oxide conductivity results in a significant increase in number of defects in the lattice to provide abundant active sites for energy storage. The synthesized zinc doped manganese oxide achieved a maximum capacity of 392 F g-1 in the three-electrode system, the corresponding supercapacitor reached an outstanding energy density of 55.28 Wh kg-1 at a power density of 555.6 W kg-1, while maintaining 95.2% of the initial capacity after 10,000 cycles. This research sheds new insights to the preparation of defective materials by a simple one-step method for energy storage applications.
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