Facile preparation of N-doped MnO/rGO composite as an anode material for high-performance lithium-ion batteries

Pei, Xian-Yinan; Mo, Dong-Chuan; Lyu, Sung-Ki; Zhang, Jianhui; Fu, Yuan-Xiang

doi:10.1016/j.apsusc.2018.09.151

Cited by 32 publications

(9 citation statements)

References 66 publications

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“…Figure 2b shows the XRD patterns of graphite and rGO samples dried at different temperatures. As expected, the XRD profile of graphite shows an intense peak at 26.58 and that of rGO samples shows a broad peak around 248 [20]. Notably, the broad peaks of rGO samples are similar in shape, whereas the peak position is shifted to higher 2u value with increasing drying temperature and hence suggests a more extensive reduction in the rGO samples prepared at moderate drying temperatures [21].…”

Section: Resultssupporting

confidence: 72%

Facile synthesis of reduced graphene oxide by modified Hummer's method as anode material for Li-, Na- and K-ion secondary batteries

Lee

Gim

et al. 2019

R. Soc. open sci.

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Reduced graphene oxide (rGO) sheets were synthesized by a modified Hummer's method without additional reducing procedures, such as chemical and thermal treatment, by appropriate drying of graphite oxide under ambient atmosphere. The use of a moderate drying temperature (250°C) led to mesoporous characteristics with enhanced electrochemical activity, as confirmed by electron microscopy and N 2 adsorption studies. The dimensions of the sheets ranged from nanometres to micrometres and these sheets were entangled with each other. These morphological features of rGO tend to facilitate the movement of guest ions larger than Li + . Impressive electrochemical properties were achieved with the rGO electrodes using various charge-transfer ions, such as Li + , Na + and K + , along with high porosity. Notably, the feasibility of this system as the carbonaceous anode material for sodium battery systems is demonstrated. Furthermore, the results also suggest that the high-rate capability of the present rGO electrode can pave the way for improving the full cell characteristics, especially for preventing the potential drop in sodium-ion batteries and potassium-ion batteries, which are expected to replace the lithium-ion battery system

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Section: Resultssupporting

confidence: 72%

Facile synthesis of reduced graphene oxide by modified Hummer's method as anode material for Li-, Na- and K-ion secondary batteries

Lee

Gim

et al. 2019

R. Soc. open sci.

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“…The high-resolution Zn 2p 3/2 spectra (Figure a–c) reveal that the ZnO (1022.3 eV) and Zn(OH) 2 (1023.5 eV) are gradually transformed into Zn 0 (1021.7 eV) when the calcination temperature is increased from 400 to 800 °C. , The decreasing intensity of the Zn 0 peak with increasing calcination temperature from 600 to 800 °C can be associated with the evaporation of Zn 0 . , The specific surface area of Zn@C-600 is also measured to be 283.81 m 2 g –1 (Figure d). As shown in Figure g–i, the HAADF-STEM and EDS mapping results distinctly indicate the homogeneous distribution of C, N, O, and Zn elements in the Zn@C-600 composite.…”

Section: Resultsmentioning

confidence: 93%

“…25,26 The decreasing intensity of the Zn 0 peak with increasing calcination temperature from 600 to 800 °C can be associated with the evaporation of Zn 0 . 24,27 The specific surface area of Zn@C-600 is also measured to be 283.81 m 2 g −1 (Figure 2d). As shown in Figure 2g−i, the HAADF-STEM and EDS mapping results distinctly indicate the homogeneous distribution of C, N, O, and Zn elements in the Zn@C-600 composite.…”

Section: ■ Experimental Sectionmentioning

confidence: 93%

Dual Porous 3D Zinc Anodes toward Dendrite-Free and Long Cycle Life Zinc-Ion Batteries

Chen

Guo

et al. 2021

ACS Appl. Mater. Interfaces

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Rechargeable aqueous zinc-ion batteries (ZIBs) have been proven to be an alternative energy storage system because of their high safety, low cost, and eco-friendliness. However, the poor stability of metallic Zn anodes suffering from uncontrolled dendrite formation and electrochemical corrosion has brought troublesome hindrances for their practical application. In this work, we report a dual porous Zn-3D@600 anode prepared by coating a Zn@C protective layer on a 3D zinc skeleton. The Zn-3D@600 anode exhibits a highly stable and low polarization voltage during the Zn plating/stripping process and possesses a smooth and dendrite-free interface after long-term cycling. Moreover, the assembled Zn-3D@600 cell shows excellent cycle stability and superlative rate performance, delivering a discharge capacity of 198.8 mAh g −1 after 1000 cycles at 1 A g −1 . Such excellent electrochemical performance can be credited to the Zn@C protective layer regulating uniform Zn nucleation and the 3D zinc skeleton accommodating Zn deposition at a high current density.

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“…This method is already applied to the modification of nano-materials (including carbon materials, oxides and hydroxides) to control the flow of charge carriers and improve the transport properties. 213–215 Additionally, lots of excellent reports claimed that the doped heteroatoms (N, S, P, O, Al, Ni, etc. ) into TMOs (Transition Metal Oxides) could be advantageous to the electrochemical performance due to the following advantages: i) different oxygen or metal flaws can be introduced into the crystal by the heteroatom doping during crystallization, which can accelerate the transfer of ions or electrons in the interface of the electrode materials and electrolyte.…”

Section: Effect Of Chemical Doping On the Performance Of Copper Cobal...mentioning

confidence: 99%

Advances in copper cobaltate-based nanomaterial electrodes for supercapacitor applications

Guo,

He,

Wang

et al. 2023

CrystEngComm

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Facile preparation of N-doped MnO/rGO composite as an anode material for high-performance lithium-ion batteries

Cited by 32 publications

References 66 publications

Facile synthesis of reduced graphene oxide by modified Hummer's method as anode material for Li-, Na- and K-ion secondary batteries

Facile synthesis of reduced graphene oxide by modified Hummer's method as anode material for Li-, Na- and K-ion secondary batteries

Dual Porous 3D Zinc Anodes toward Dendrite-Free and Long Cycle Life Zinc-Ion Batteries

Advances in copper cobaltate-based nanomaterial electrodes for supercapacitor applications

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