Interfacial Engineering and a Low-Crystalline Strategy for High-Performance Supercapacitor Negative Electrodes: Fe2P2O7 Nanoplates Anchored on N/P Co-doped Graphene Nanotubes

Author(s):  
Huanyu Li ◽  
Ting Liu ◽  
Yinna He ◽  
Jiangnan Song ◽  
Alan Meng ◽  
...  
2021 ◽  
Vol 512 ◽  
pp. 230482
Author(s):  
Jie Xia ◽  
Yanxian Geng ◽  
Shuting Huang ◽  
Dongyun Chen ◽  
Najun Li ◽  
...  

2018 ◽  
Vol 435 ◽  
pp. 937-944 ◽  
Author(s):  
Zhuo Chen ◽  
Liqiang Hou ◽  
Yan Cao ◽  
Yushu Tang ◽  
Yongfeng Li

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Mengjiao Shi ◽  
Su Zhang ◽  
Yuting Jiang ◽  
Zimu Jiang ◽  
Longhai Zhang ◽  
...  

AbstractThe development of lithium–sulfur batteries (LSBs) is restricted by their poor cycle stability and rate performance due to the low conductivity of sulfur and severe shuttle effect. Herein, an N, O co-doped graphene layered block (NOGB) with many dents on the graphene sheets is designed as effective sulfur host for high-performance LSBs. The sulfur platelets are physically confined into the dents and closely contacted with the graphene scaffold, ensuring structural stability and high conductivity. The highly doped N and O atoms can prevent the shuttle effect of sulfur species by strong chemical adsorption. Moreover, the micropores on the graphene sheets enable fast Li+ transport through the blocks. As a result, the obtained NOGB/S composite with 76 wt% sulfur content shows a high capacity of 1413 mAh g−1 at 0.1 C, good rate performance of 433 mAh g−1 at 10 C, and remarkable stability with 526 mAh g−1 at after 1000 cycles at 1 C (average decay rate: 0.038% per cycle). Our design provides a comprehensive route for simultaneously improving the conductivity, ion transport kinetics, and preventing the shuttle effect in LSBs.


Carbon ◽  
2018 ◽  
Vol 126 ◽  
pp. 328-337 ◽  
Author(s):  
Ruizhong Zhang ◽  
Chunmei Zhang ◽  
Fuqin Zheng ◽  
Xiaokun Li ◽  
Chia-Liang Sun ◽  
...  

Carbon ◽  
2017 ◽  
Vol 116 ◽  
pp. 338-346 ◽  
Author(s):  
Haoran An ◽  
Yu Li ◽  
Yi Gao ◽  
Chen Cao ◽  
Junkai Han ◽  
...  

2012 ◽  
Vol 24 (37) ◽  
pp. 5130-5135 ◽  
Author(s):  
Zhong-Shuai Wu ◽  
Andreas Winter ◽  
Long Chen ◽  
Yi Sun ◽  
Andrey Turchanin ◽  
...  

2019 ◽  
Vol 7 (13) ◽  
pp. 7591-7603 ◽  
Author(s):  
Liya Ma ◽  
Jin Liu ◽  
Song Lv ◽  
Qin Zhou ◽  
Xinyu Shen ◽  
...  

N,S co-doped graphene-enhanced HPC is prepared by a facile one-step method, and exhibits superior electrochemical performances as a solid-state supercapacitor electrode.


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