One-pot formation of ultra-thin Ni/Co hydroxides with a sheet-like structure for enhanced asymmetric supercapacitors

2016 ◽  
Vol 4 (23) ◽  
pp. 9160-9168 ◽  
Author(s):  
Lin Ye ◽  
Lijun Zhao ◽  
Hang Zhang ◽  
Bo Zhang ◽  
Huiyuan Wang
Keyword(s):  
Asymmetric Supercapacitors ◽  
One Pot ◽  
Ragone Plot

Ragone plot of the Ni/Co hydroxides (Ni1Co2)//AC device.

scholarly journals Ionic-liquid-assisted one-pot synthesis of Cu2O nanoparticles/multi-walled carbon nanotube nanocomposite for high-performance asymmetric supercapacitors

RSC Advances ◽  
2018 ◽  
Vol 8 (36) ◽  
pp. 20182-20189 ◽  
Author(s):  
Ying Lu ◽  
Jian-Long Xu ◽  
Shan Ren ◽  
Ya-Nan Zhong ◽  
Xu Gao ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Carbon Nanotube ◽  
High Performance ◽  
Room Temperature ◽  
Synergistic Effects ◽  
Asymmetric Supercapacitors ◽  
One Pot ◽  
Multi Walled Carbon Nanotube ◽  
Cu2o Nanoparticles ◽  
Cycling Life

A one-pot room-temperature-ionic-liquid-assisted sputtering approach is designed to synthesize Cu2O/MWCNTs nanocomposite with high capacitance and long cycling life due to synergistic effects of oxygen-deficient Cu2O and conductive MWCNTs.

One-pot synthesis of MnOOH nanorods on graphene for asymmetric supercapacitors

2014 ◽  
Vol 127 ◽  
pp. 200-207 ◽  
Author(s):  
Yongbo Cao ◽  
Yuanhua Xiao ◽  
Yuyin Gong ◽  
Chaofei Wang ◽  
Feng Li
Keyword(s):  
Asymmetric Supercapacitors ◽  
One Pot ◽  
One Pot Synthesis

scholarly journals Integration of 3D interconnected sodium hydroxide modified biochar with the tile-like architecture of cobalt oxides for asymmetric supercapacitors

2020 ◽  
Author(s):  
Omid Norouzi ◽  
Seyed Esmaeil Mohammadi Pourhoseini ◽  
Hamid Reza Naderi ◽  
Francesco Di Maria ◽  
Animesh Dutta
Keyword(s):  
State Of The Art ◽  
Cycling Performance ◽  
Cobalt Oxides ◽  
Asymmetric Supercapacitors ◽  
One Pot ◽  
Green Macroalgae ◽  
Mild Conditions ◽  
Modified Biochar ◽  
Algal Biochar ◽  
Maximum Specific Capacitance

Abstract Two state-of-the-art electrodes were successfully synthesized and used to assemble both symmetric and asymmetric type supercapacitors. 3DFAB was fabricated by direct pyrolysis of green macroalgae in the presence of NaOH. Possible mechanisms of NaOH activation is proposed, which explains the formation of oxygen functional groups through quick penetration of OH- and NaOH into the vacancies. To obtain CoTLM, the tile-like architecture of cobalt oxides was introduced to the 3D interconnected functional algal biochar (3DFAB) by a simple one-pot hydrothermal method under mild conditions. For the symmetric supercapacitors, the maximum specific capacitance of RAB, 3DFAB, and CoTLM were 177 F g− 1, 322 F g− 1, and 529 F g− 1 at a scan rate of 5mVs− 1. Regarding cobalt-based asymmetric systems, the maximum capacitance for the RAB//CoTLM and 3DFAB//CoTLM were ∼300 F g− 1 and 400 F g− 1, respectively. The 3DFAB//CoTLM showed a higher energy density compared with RAB//CoTLM, while the RAB//CoTLM exhibited better cycling performance (99.1% of its initial capacitance after 4 k cycles at the current density of 4 A g 1).

One-Pot Synthesis of CuS Nanoflower-Decorated Active Carbon Layer for High-Performance Asymmetric Supercapacitors

ChemNanoMat ◽  
2018 ◽  
Vol 4 (9) ◽  
pp. 964-971 ◽  
Author(s):  
Guoxiang Wang ◽  
Mingyuan Zhang ◽  
Lu Lu ◽  
Hongfeng Xu ◽  
Zuoyi Xiao ◽  
...  
Keyword(s):  
Active Carbon ◽  
High Performance ◽  
Carbon Layer ◽  
Asymmetric Supercapacitors ◽  
One Pot ◽  
One Pot Synthesis

One-pot Synthesis and Application in Asymmetric Supercapacitors of Mn$lt;inf$gt;3$lt;/inf$gt;O$lt;inf$gt;4$lt;/inf$gt;@RGO Nanocomposites

2016 ◽  
Vol 31 (6) ◽  
pp. 581 ◽  
Author(s):  
WANG Chao-Fei ◽  
LU Shuang ◽  
CHEN Hui-Long ◽  
GONG Fei-Long ◽  
GONG Yu-Yin ◽  
...  
Keyword(s):  
Asymmetric Supercapacitors ◽  
One Pot ◽  
One Pot Synthesis
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