A novel hydrothermal route of preparing CuMnO₂ nanoflakes and their application in Li-ion batteries and supercapacitors

CuMnO2 nanoflakes have been prepared utilizing a hydrothermal technique with nitrilotriacetic acid as a precipitant. The structure, composition, and morphology are characterized by several techniques. Interestingly, the as-prepared sample delivers 993 mAh g(-1) after 300 cycles, excellent rate capabilities (523.2, 293.3, and 156.1 mAh g(-1) at 0.5, 1.0, and 2.0 A g(-1), respectively) as the anode of a Li-half battery, and a high specific capacitance of 403.3 F g(-1) even at 12 A g(-1), as well as stable cycling, excellent kinetics, and rate capabilities for supercapacitors applications, which are superior to the single Cu2O or Mn2O3, suggesting a great potential for advanced lithium-ion batteries. (c) 2023 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). https://doi.org/10.1063/5.0154705