Ti3C2Tx nanosheet wrapped core–shell MnO2 nanorods @ hollow porous carbon as a multifunctional polysulfide mediator for improved Li–S batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (47) ◽  
pp. 24196-24205
Author(s):  
Heng Zhang ◽  
Peigen Zhang ◽  
Long Pan ◽  
Wei He ◽  
Qi Qi ◽  
...  
Keyword(s):  
Hierarchical Structure ◽  
Porous Carbon ◽  
High Performance ◽  
Core Shell ◽  
Shuttle Effect ◽  
Self Assembled

A 3D self-assembled, multifunctional MCT hierarchical structure was developed to alleviate the shuttle effect for high-performance Li–S batteries.

Core@shell β-FeOOH@polypyrolle derived N, S-codoped Fe3O4@N-doped porous carbon nanococoons for high performance supercapacitors

2019 ◽  
Vol 480 ◽  
pp. 582-592 ◽  
Author(s):  
Maiyong Zhu ◽  
Qi Chen ◽  
Jingjing Tang ◽  
Wenjing Wei ◽  
Songjun Li
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Core Shell

A three-dimensional interconnected nitrogen-doped graphene-like porous carbon-modified separator for high-performance Li–S batteries

2020 ◽  
Vol 4 (8) ◽  
pp. 4264-4272
Author(s):  
Wen Huang ◽  
Daqian Ruan ◽  
Hui Chen ◽  
Kai Hu ◽  
Juan Wen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Three Dimensional ◽  
Shuttle Effect ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Lithium Sulfur ◽  
Modified Separator ◽  
Capacity Decay

Suppressing rapid capacity decay caused by the shuttle effect of dissolved lithium polysulfides between two electrodes is crucial to the realization of a practical lithium–sulfur (Li–S) batteries.

scholarly journals Correction: Self-assembled Ti3C2 MXene and N-rich porous carbon hybrids as superior anodes for high-performance potassium-ion batteries

2021 ◽  
Author(s):  
Ruizheng Zhao ◽  
Haoxiang Di ◽  
Xiaobin Hui ◽  
Danyang Zhao ◽  
Rutao Wang ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Potassium Ion ◽  
Self Assembled ◽  
Energy Environ

Correction for ‘Self-assembled Ti3C2 MXene and N-rich porous carbon hybrids as superior anodes for high-performance potassium-ion batteries’ by Ruizheng Zhao et al., Energy Environ. Sci., 2020, 13, 246–257, DOI: 10.1039/C9EE03250A.

Self-assembled Ti3C2 MXene and N-rich porous carbon hybrids as superior anodes for high-performance potassium-ion batteries

2020 ◽  
Vol 13 (1) ◽  
pp. 246-257 ◽  
Author(s):  
Ruizheng Zhao ◽  
Haoxiang Di ◽  
Xiaobin Hui ◽  
Danyang Zhao ◽  
Rutao Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Reaction Kinetics ◽  
Porous Carbon ◽  
Self Assembly ◽  
High Performance ◽  
Potassium Ion ◽  
Electrostatic Attraction ◽  
The Novel ◽  
Self Assembled

The novel PDDA-NPCNs/Ti3C2 hybrids via an electrostatic attraction self-assembly approach effectively accelerate reaction kinetics and improve electrochemical performance as PIBs anodes.

scholarly journals MnO2-Coated Dual Core–Shell Spindle-Like Nanorods for Improved Capacity Retention of Lithium–Sulfur Batteries

2020 ◽  
Vol 4 (2) ◽  
pp. 42 ◽  
Author(s):  
Hamza Dunya ◽  
Maziar Ashuri ◽  
Dana Alramahi ◽  
Zheng Yue ◽  
Kamil Kucuk ◽  
...  
Keyword(s):  
High Performance ◽  
Synergistic Effects ◽  
Coulombic Efficiency ◽  
Rate Capability ◽  
Core Shell ◽  
Shuttle Effect ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Dual Core ◽  
Lithium Sulfur

The emerging need for high-performance lithium–sulfur batteries has motivated many researchers to investigate different designs. However, the polysulfide shuttle effect, which is the result of dissolution of many intermediate polysulfides in electrolyte, has still remained unsolved. In this study, we have designed a sulfur-filled dual core–shell spindle-like nanorod structure coated with manganese oxide (S@HCNR@MnO2) to achieve a high-performance cathode for lithium–sulfur batteries. The cathode showed an initial discharge capacity of 1661 mA h g−1 with 80% retention of capacity over 70 cycles at a 0.2C rate. Furthermore, compared with the nanorods without any coating (S@HCNR), the MnO2-coated material displayed superior rate capability, cycling stability, and Coulombic efficiency. The synergistic effects of the nitrogen-doped hollow carbon host and the MnO2 second shell are responsible for the improved electrochemical performance of this nanostructure.

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