Controlled synthesis of N-doped carbon spheres with different morphologies for supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (106) ◽  
pp. 104642-104647 ◽  
Author(s):  
Zuosong Sun ◽  
Shaodian Shen ◽  
Limeng Ma ◽  
Dongsen Mao ◽  
Guanzhong Lu
Keyword(s):  
Mesoporous Carbon ◽  
Core Shell ◽  
Controlled Synthesis ◽  
General Strategy ◽  
Carbon Spheres ◽  
Carbon Nanospheres ◽  
Nitrogen Doped

A facile and general strategy has been developed to synthesize nitrogen doped mesoporous carbon nanospheres, newly nitrogen doped lychee exocarp-like mesoporous carbon spheres and nitrogen doped core–shell mesoporous carbon spheres.

Rational design of high nitrogen-doped and core–shell/mesoporous carbon nanospheres with high rate capability and cycling longevity for pseudocapacitive sodium storage

2020 ◽  
Vol 8 (19) ◽  
pp. 9768-9775
Author(s):  
Jiayi Mao ◽  
Dechao Niu ◽  
Nan Jiang ◽  
Guangyu Jiang ◽  
Meiwan Chen ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Rational Design ◽  
Rate Capability ◽  
High Rate ◽  
Soft Template ◽  
Core Shell ◽  
High Nitrogen ◽  
Carbon Nanospheres ◽  
Nitrogen Doped

A facile soft-template strategy is developed to construct high-nitrogen-doped and core–shell/mesoporous carbon nanospheres for high-rate and long-term stable sodium-ion batteries.

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.

Nitrogen-doped hollow carbon spheres with a wrinkled surface: their one-pot carbonization synthesis and supercapacitor properties

2016 ◽  
Vol 52 (78) ◽  
pp. 11693-11696 ◽  
Author(s):  
Lei Liu ◽  
Shi-Da Xu ◽  
Qing Yu ◽  
Feng-Yun Wang ◽  
Hui-Ling Zhu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Core Shell ◽  
Carbon Spheres ◽  
Melamine Formaldehyde ◽  
One Pot ◽  
Nitrogen Doped ◽  
Wrinkled Surface ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Nitrogen-doped hollow carbon spheres with a wrinkled surface were synthesized through direct pyrolysis of core–shell structured graphene oxide–resol@melamine formaldehyde composites.

One-pot synthesis of nitrogen-doped ordered mesoporous carbon spheres for high-rate and long-cycle life supercapacitors

Carbon ◽  
2018 ◽  
Vol 127 ◽  
pp. 85-92 ◽  
Author(s):  
Jian-Gan Wang ◽  
Hongzhen Liu ◽  
Huanhuan Sun ◽  
Wei Hua ◽  
Huwei Wang ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Ordered Mesoporous Carbon ◽  
Cycle Life ◽  
High Rate ◽  
Carbon Spheres ◽  
One Pot ◽  
Nitrogen Doped ◽  
Long Cycle Life ◽  
One Pot Synthesis ◽  
Ordered Mesoporous

Confined thermal transformation strategy to synthesize single atom catalysts supported on nitrogen-doped mesoporous carbon nanospheres for selective hydrogenation

2021 ◽  
Author(s):  
Zhengbin Tian ◽  
Wenquan Wang ◽  
Yan Zheng ◽  
Guang-Hui Wang
Keyword(s):  
Mass Transfer ◽  
Mesoporous Carbon ◽  
Thermal Transformation ◽  
Single Atom ◽  
Carbon Nanospheres ◽  
Mass Transfer Limitation ◽  
Templating Method ◽  
Nitrogen Doped ◽  
Soft Templating ◽  
Low Activity

Carbon-supported single-atom catalysts (SACs) have brought considerable attention in heterogeneous catalysis, which, however, often suffer from low activity due to the mass transfer limitation. Herein, we report a soft-templating method...

Silica-Assisted Assembly for Synthesis of Nitrogen-Doped Hollow Mesoporous Carbon Spheres as Supercapacitors

2017 ◽  
Vol 164 (9) ◽  
pp. A1918-A1923 ◽  
Author(s):  
Yuying Wang ◽  
Juan Du ◽  
Hongliang Zhang ◽  
Lei Liu ◽  
Yifeng Yu ◽  
...  
Keyword(s):  
Mesoporous Carbon ◽  
Carbon Spheres ◽  
Nitrogen Doped

Core/shell microcapsules consisting of Fe3O4 microparticles coated with nitrogen-doped mesoporous carbon for voltammetric sensing of hydrogen peroxide

2017 ◽  
Vol 184 (11) ◽  
pp. 4513-4520 ◽  
Author(s):  
Zuojia Qin ◽  
Yu Zhao ◽  
Li Lin ◽  
Ping Zou ◽  
Li Zhang ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Mesoporous Carbon ◽  
Core Shell ◽  
Nitrogen Doped ◽  
Voltammetric Sensing
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