Bacterial-Cellulose-Derived Carbon Nanofiber@MnO2and Nitrogen-Doped Carbon Nanofiber Electrode Materials: An Asymmetric Supercapacitor with High Energy and Power Density

2013 ◽  
Vol 25 (34) ◽  
pp. 4746-4752 ◽  
Author(s):  
Li-Feng Chen ◽  
Zhi-Hong Huang ◽  
Hai-Wei Liang ◽  
Qing-Fang Guan ◽  
Shu-Hong Yu
2018 ◽  
Vol 6 (42) ◽  
pp. 21225-21230 ◽  
Author(s):  
Hassina Tabassum ◽  
Chong Qu ◽  
Kunting Cai ◽  
Waseem Aftab ◽  
Zibin Liang ◽  
...  

The BCN nanotubes have been fabricated on melamine foam (MF) derived three dimensional (3D) nitrogen doped carbon skeleton, which exhibited high energy and power density for the SSC and ASC devices.


2014 ◽  
Vol 24 (25) ◽  
pp. 3953-3961 ◽  
Author(s):  
Conglai Long ◽  
Dongping Qi ◽  
Tong Wei ◽  
Jun Yan ◽  
Lili Jiang ◽  
...  

2019 ◽  
Vol 43 (30) ◽  
pp. 11959-11967 ◽  
Author(s):  
Nadeem Hussain ◽  
Fangfang Wu ◽  
Waqar Younas ◽  
Liqiang Xu

A stable hollow sphere NaNiF3//AC device with ultra-high energy and power density.


Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1130
Author(s):  
Liang Ma ◽  
Jinliang Li ◽  
Zhibin Li ◽  
Yingying Ji ◽  
Wenjie Mai ◽  
...  

As a promising energy storage system, potassium (K) ion batteries (KIBs) have received extensive attention due to the abundance of potassium resource in the Earth’s crust and the similar properties of K to Li. However, the electrode always presents poor stability for K-ion storage due to the large radius of K-ions. In our work, we develop a nitrogen-doped carbon nanofiber (N-CNF) derived from bacterial cellulose by a simple pyrolysis process, which allows ultra-stable K-ion storage. Even at a large current density of 1 A g−1, our electrode exhibits a reversible specific capacity of 81 mAh g−1 after 3000 cycles for KIBs, with a capacity retention ratio of 71%. To investigate the electrochemical enhancement performance of our N-CNF, we provide the calculation results according to density functional theory, demonstrating that nitrogen doping in carbon is in favor of the K-ion adsorption during the potassiation process. This behavior will contribute to the enhancement of electrochemical performance for KIBs. In addition, our electrode exhibits a low voltage plateau during the potassiation–depotassiation process. To further evaluate this performance, we calculate the “relative energy density” for comparison. The results illustrate that our electrode presents a high “relative energy density”, indicating that our N-CNF is a promising anode material for KIBs.


2015 ◽  
Vol 3 (26) ◽  
pp. 13874-13883 ◽  
Author(s):  
Ping Wen ◽  
Peiwei Gong ◽  
Jinfeng Sun ◽  
Jinqing Wang ◽  
Shengrong Yang

Novel composites of Ni-MOF/CNTs and rGO/C3N4 were synthesized to assemble an asymmetric supercapacitor with high energy and power density.


2017 ◽  
Vol 9 (21) ◽  
pp. 17890-17896 ◽  
Author(s):  
Bitao Dong ◽  
Mingyan Li ◽  
Sheng Chen ◽  
Dawei Ding ◽  
Wei Wei ◽  
...  

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