Optimization of Chemi‐adsorption, EDLC, and Redox Capacitance Through Electro‐precipitation Synthesis of Fe 3 O 4 /NiO@rGO/h‐BN for the Development of Hybrid Supercapacitor

2019 ◽  
Vol 4 (2) ◽  
pp. 589-599 ◽  
Author(s):  
Sanjit Saha ◽  
Wooree Jang ◽  
Naresh C Murmu ◽  
Hyeyoung Koo ◽  
Tapas Kuila
Keyword(s):  
Hybrid Supercapacitor ◽  
Precipitation Synthesis ◽  
Redox Capacitance

Potassium Pre-Inserted K1.04Mn8O16 Cathode Materials for Aqueous Li-Ion and Na-Ion Hybrid Capacitors

2019 ◽  
Author(s):  
Yamin Zhang ◽  
Lina Chen ◽  
Chongyang Hao ◽  
Xiaowen Zheng ◽  
Yixuan Guo ◽  
...  
Keyword(s):  
Cycling Performance ◽  
High Energy ◽  
High Energy Density ◽  
Potassium Ions ◽  
Tunnel Structure ◽  
Hybrid Supercapacitor ◽  
Hybrid Supercapacitors ◽  
Li Ion ◽  
Power Densities ◽  
Hybrid Capacitors

For the applications of aqueous Li-ion hybrid capacitors and Na-ion hybrid capacitors, potassium ions are pre-inserted into MnO<sub>2</sub> tunnel structure, the as-prepared K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16</sub> materials consist of <a>nanoparticles</a> and nanorods were prepared by facile high-temperature solid-state reaction. <a></a>The as-prepared materials were well studied andthey show outstanding electrochemical behavior. We assembled hybrid supercapacitors with commercial activated carbon (YEC-8A) as anode and K<sub>1.04</sub>Mn<sub>8</sub>O<sub>16 </sub>as cathode. It has high energy densities and power densities. Li-ion capacitors reach a high energy density of 127.61 Wh kg<sup>-1 </sup>at the power density of 99.86 W kg<sup>-1</sup> and Na-ion capacitor obtains 170.96 Wh kg<sup>-1 </sup>at 133.79 W kg<sup>-1</sup>. In addition, the <a>hybrid supercapacitor</a>s demonstrate excellent cycling performance which maintain 97 % capacitance retention for Li-ion capacitor and 85 % for Na-ion capacitor after 10,000 cycles.

Solution-free Self-Assembled Growth of Ordered Tricopper Phosphide for Efficient and Stable Hybrid Supercapacitor

2021 ◽  
Author(s):  
Nilesh R. Chodankar ◽  
Pragati A. Shinde ◽  
Swati J. Patil ◽  
Seung-Kyu Hwang ◽  
Ganji Seeta Rama Raju ◽  
...  
Keyword(s):  
Hybrid Supercapacitor ◽  
Self Assembled ◽  
Stable Hybrid

Influence of surfactants on co-precipitation synthesis of Bi–YIG particles

2009 ◽  
Vol 470 (1-2) ◽  
pp. 497-501 ◽  
Author(s):  
Y.J. Wu ◽  
H.P. Fu ◽  
R.Y. Hong ◽  
Y. Zheng ◽  
D.G. Wei
Keyword(s):  
Precipitation Synthesis ◽  
Co Precipitation
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