Rational Construction of Nitrogen‐Doped Hierarchical Dual‐Carbon for Advanced Potassium‐Ion Hybrid Capacitors

2020 ◽  
Vol 10 (15) ◽  
pp. 1904045 ◽  
Author(s):  
Jiafeng Ruan ◽  
Fangjie Mo ◽  
Ziliang Chen ◽  
Miao Liu ◽  
Shiyou Zheng ◽  
...  
Keyword(s):  
Potassium Ion ◽  
Nitrogen Doped ◽  
Rational Construction ◽  
Hybrid Capacitors

scholarly journals Cucurbit[6]uril‐Derived Nitrogen‐Doped Hierarchical Porous Carbon Confined in Graphene Network for Potassium‐Ion Hybrid Capacitors

2020 ◽  
Vol 7 (20) ◽  
pp. 2001681
Author(s):  
Daping Qiu ◽  
Jingyu Guan ◽  
Min Li ◽  
Cuihua Kang ◽  
Jinying Wei ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Potassium Ion ◽  
Hierarchical Porous Carbon ◽  
Nitrogen Doped ◽  
Hierarchical Porous ◽  
Hybrid Capacitors

Phosphorus-doping-induced kinetics modulation for nitrogen-doped carbon mesoporous nanotubes as superior alkali metal anode beyond lithium for high-energy potassium-ion hybrid capacitors

Nanoscale ◽  
2021 ◽  
Author(s):  
Jie Li ◽  
Lai Yu ◽  
Yapeng Li ◽  
Gongrui Wang ◽  
Liping Zhao ◽  
...  
Keyword(s):  
Alkali Metal ◽  
Electrochemical Performance ◽  
High Energy ◽  
Potassium Ion ◽  
Phosphorus Doping ◽  
Metal Anode ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Hybrid Capacitors

PNC-MeNTs have been fabricated by a template-assisted method and carbonization treatment, and they exhibit outstanding electrochemical performance for Na+/K+ storage.

Nitrogen-doped carbon nanotubes as an anode for a highly robust potassium-ion hybrid capacitor

2020 ◽  
Vol 5 (12) ◽  
pp. 1586-1595
Author(s):  
Xiuqi Li ◽  
Maoxin Chen ◽  
Lei Wang ◽  
Hanjiao Xu ◽  
Jiang Zhong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
Potassium Ion ◽  
High Energy Density ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon ◽  
Hybrid Capacitors

Novel N-doped carbon nanotubes (NCNTs) were synthesized as an anode for high energy density and power density potassium-ion hybrid capacitors.

scholarly journals High Capacity and Fast Kinetics of Potassium-Ion Batteries Boosted by Nitrogen-Doped Mesoporous Carbon Spheres

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Jiefeng Zheng ◽  
Yuanji Wu ◽  
Yong Tong ◽  
Xi Liu ◽  
Yingjuan Sun ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Active Sites ◽  
Carbon Materials ◽  
Potassium Ion ◽  
High Rate ◽  
Electrochemical Performances ◽  
Carbon Spheres ◽  
Fast Kinetics ◽  
Nitrogen Doped ◽  
Economic Price

AbstractIn view of rich potassium resources and their working potential, potassium-ion batteries (PIBs) are deemed as next generation rechargeable batteries. Owing to carbon materials with the preponderance of durability and economic price, they are widely employed in PIBs anode materials. Currently, porosity design and heteroatom doping as efficacious improvement strategies have been applied to the structural design of carbon materials to improve their electrochemical performances. Herein, nitrogen-doped mesoporous carbon spheres (MCS) are synthesized by a facile hard template method. The MCS demonstrate larger interlayer spacing in a short range, high specific surface area, abundant mesoporous structures and active sites, enhancing K-ion migration and diffusion. Furthermore, we screen out the pyrolysis temperature of 900 °C and the pore diameter of 7 nm as optimized conditions for MCS to improve performances. In detail, the optimized MCS-7-900 electrode achieves high rate capacity (107.9 mAh g−1 at 5000 mA g−1) and stably brings about 3600 cycles at 1000 mA g−1. According to electrochemical kinetic analysis, the capacitive-controlled effects play dominant roles in total storage mechanism. Additionally, the full-cell equipped MCS-7-900 as anode is successfully constructed to evaluate the practicality of MCS.

The creation of extra storage capacity in nitrogen-doped porous carbon as high-stable potassium-ion battery anodes

Carbon ◽  
2021 ◽  
Author(s):  
Shikai Xu ◽  
Le Cai ◽  
Ping Niu ◽  
Zhiqiang Li ◽  
Lingzhi Wei ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Storage Capacity ◽  
Potassium Ion ◽  
Nitrogen Doped ◽  
The Creation
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