Oleic acid-treated synthesis of MnO@C with superior electrochemical properties

Guo, Jing; Liang, Jie; Cui, Chunyu; Ma, Jianmin

doi:10.1016/j.jechem.2017.03.003

Cited by 8 publications

(3 citation statements)

References 44 publications

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“…S12c†), which showed that MnO is finally oxidized to Mn 2 O 3 at 800 °C. 24 Therefore, the mass proportion of MnO in t-MnO@C and 1D-MnO@C is calculated to be 80 wt% and 78 wt%, respectively. The N 2 sorption–desorption isotherms of the t-MnO@C and 1D-MnO@C samples were measured at 77 K (Fig.…”

Section: Resultsmentioning

confidence: 99%

Metal–organic framework derived tunnel structured MnO as the cathode material for high performance aqueous zinc-ion batteries

Li,

Liu,

et al. 2023

J. Mater. Chem. A

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Section: Resultsmentioning

confidence: 99%

Metal–organic framework derived tunnel structured MnO as the cathode material for high performance aqueous zinc-ion batteries

Li,

Liu,

et al. 2023

J. Mater. Chem. A

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“…The capacity retention rate can reach 100% after cycling 600 times, while the specific capacity of pure MnO decreases to ~25% after just 30 cycles. Guo and co-workers also synthesized MnO@C nanocomposites, which could deliver a discharge capacity of 421 mAh g −1 at a current density of 100 mA g −1 [ 15 ]. Compared to pure MnO, both the discharge capacity and cycling stability are greatly improved.…”

Section: Introductionmentioning

confidence: 99%

Effects of Carbon Content and Current Density on the Li+ Storage Performance for MnO@C Nanocomposite Derived from Mn-Based Complexes

Jiao

Zhou

et al. 2020

Nanomaterials

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In this study, a simple method was adopted for the synthesis of MnO@C nanocomposites by combining in-situ reduction and carbonization of the Mn3O4 precursor. The carbon content, which was controlled by altering the annealing time in the C2H2/Ar atmosphere, was proved to have great influences on the electrochemical performances of the samples. The relationships between the carbon contents and electrochemical performances of the samples were systematically investigated using the cyclic voltammetry (CV) as well as the electrochemical impedance spectroscopy (EIS) method. The results clearly indicated that the carbon content could influence the electrochemical performances of the samples by altering the Li+ diffusion rate, electrical conductivity, polarization, and the electrochemical mechanism. When being used as the anode materials in lithium-ion batteries, the capacity retention rate of the resulting MnO@C after 300 cycles could reach 94% (593 mAh g−1, the specific energy of 182 mWh g−1) under a current density of 1.0 A g−1 (1.32 C charge/discharge rate). Meanwhile, this method could be easily scaled up, making the rational design and large-scale application of MnO@C possible.

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“…Li-ion battery (LIBs) is one type of rechargeable batteries that can repeatedly convert chemical energy into electric energy via electrochemical reactions. It is currently the best performing battery for applications in portable devices, and possess the higher energy density, long service life and wide operating temperature [4][5][6] . Electrode materials play a key role in determining the performance of electrode and device.…”

Section: Introductionmentioning

confidence: 99%