Mesoporous MnCo₂O₄ with a Flake‐Like Structure as Advanced Electrode Materials for Lithium‐Ion Batteries and Supercapacitors

Abstract

A mesoporous flake-like manganese-cobalt composite oxide (MnCo2O4) is synthesized successfully through the hydrothermal method. The crystalline phase and morphology of the materials are characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, and Brunauer-Emmett-Teller methods. The flake-like MnCo2O4 is evaluated as the anode material for lithium-ion batteries. Owing to its mesoporous nature, it exhibits a high reversible capacity of 1066 mA h g(-1), good rate capability, and superior cycling stability. As an electrode material for supercapacitors, the flake-like MnCo2O4 also demonstrates a high supercapacitance of 1487 F g(-1) at a current density of 1 A g(-1), and an exceptional cycling performance over 2000 charge/discharge cycles.

Carbon-Coated Honeycomb Ni-Mn-Co-O Inverse Opal: A High Capacity Ternary Transition Metal Oxide Anode for Li-ion Batteries

“…The poor electrochemical performance of the Ni-Mn-Co-O IOs when cycled in a cathode potential window compared to the impressive capacities obtained when cycled in an anode potential window confirm that our Ni-Mn-Co-O IO samples are an anode material. Ni-Mn-Co-O IO samples are ternary analogs similar to other well-known binary TMO anode materials such as MnCo 2 O 4 and NiCo 2 O 4 7071.…”

Design and synthesis of hollow NiCo2O4 nanoboxes as anodes for lithium-ion and sodium-ion batteries

“…Ternary transition metal oxides such as MeCo 2 O 4 (Me= Ni, Cu, Zn, Fe, Mn) [13][14][15][16][17][18][19][20][21] have been long studied as promising electrode materials owing to their advantages of high theoretical specific capacity (500-1000 mA h g -1 ), high specific surface area and short path length for Li-ion diffusion in comparison with their bulk counterparts. Among them, NiCo 2 O 4 (NCO), an important member of the transition metal oxide family, is considered to be a promising candidate to replace conventional graphite anodes for next generation LIBs owing to its many advantages such as high theoretical capacitance (890 mA h g -1 ), low cost, environmental friendly and abundant resources.…”

Sandwich-like reduced graphene oxide wrapped MOF-derived ZnCo2O4–ZnO–C on nickel foam as anodes for high performance lithium ion batteries

“…In recent years, transitional metal oxides, especially cobalt-based oxides have drawn much attention for their potential application as anode materials duo to their much higher theoretical capacities [4][5][6] . Recently, tremendous efforts has been focused on spinel structured ternary cobalt-based oxides (ZnCo 2 O 4 [7][8] , NiCo 2 O 4 [9][10] , MnCo 2 O 4 [11][12] , etc. Recently, tremendous efforts has been focused on spinel structured ternary cobalt-based oxides (ZnCo 2 O 4 [7][8] , NiCo 2 O 4 [9][10] , MnCo 2 O 4 [11][12] , etc.…”