Biomass-derived three-dimensional honeycomb-like hierarchical structured carbon for ultrahigh energy density asymmetric supercapacitors

2016 ◽  
Vol 4 (35) ◽  
pp. 13589-13602 ◽  
Author(s):  
Dandan Shan ◽  
Jiao Yang ◽  
Wei Liu ◽  
Jun Yan ◽  
Zhuangjun Fan
Keyword(s):  
Energy Density ◽  
Bacterial Cellulose ◽  
Low Cost ◽  
Three Dimensional ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
One Step

3D honeycomb-like hierarchical structured carbon (HSC) has been fabricated by one-step carbonization/activation of abundant and low cost bacterial cellulose for ultrahigh energy density supercapacitors.

A three-dimensional graphene framework-enabled high-performance stretchable asymmetric supercapacitor

2018 ◽  
Vol 6 (4) ◽  
pp. 1802-1808 ◽  
Author(s):  
Ke Li ◽  
Yanshan Huang ◽  
Jingjing Liu ◽  
Mansoor Sarfraz ◽  
Phillips O. Agboola ◽  
...  
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
Cycling Stability ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Superior Cycling Stability

Three-dimensional graphene frameworks enable the development of stretchable asymmetric supercapacitors with a record high energy density of 77.8 W h kg−1, and also excellent stretchability and superior cycling stability.

Ultrahigh energy density battery-type asymmetric supercapacitors: NiMoO4 nanorod-decorated graphene and graphene/Fe2O3 quantum dots

Nano Research ◽  
2018 ◽  
Vol 11 (9) ◽  
pp. 4744-4758 ◽  
Author(s):  
Jiao Yang ◽  
Wei Liu ◽  
Hao Niu ◽  
Kui Cheng ◽  
Ke Ye ◽  
...  
Keyword(s):  
Quantum Dots ◽  
Energy Density ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors

Construction of a hierarchical carbon coated Fe3O4 nanorod anode for 2.6 V aqueous asymmetric supercapacitors with ultrahigh energy density

2019 ◽  
Vol 7 (48) ◽  
pp. 27313-27322 ◽  
Author(s):  
Zhongyou Peng ◽  
Jun Huang ◽  
Ying Wang ◽  
Kai Yuan ◽  
Licheng Tan ◽  
...  
Keyword(s):  
Energy Density ◽  
Cycle Performance ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Carbon Coated ◽  
Hierarchical Carbon

An assembled 2.6 V aqueous CC/CW/Fe3O4@C//CC/CW/MnO2 ASC exhibits ultrahigh energy density and remarkable cycle performance, surpassing most of the reported ASCs.

Crystal morphology evolution of Ni–Co layered double hydroxide nanostructure towards high-performance biotemplate asymmetric supercapacitors

CrystEngComm ◽  
2018 ◽  
Vol 20 (46) ◽  
pp. 7428-7434 ◽  
Author(s):  
Chuan Jing ◽  
Xiaoli Liu ◽  
Xiaoying Liu ◽  
Debin Jiang ◽  
Biqin Dong ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Crystal Morphology ◽  
Three Dimensional ◽  
Morphology Evolution ◽  
Porous Structures ◽  
Asymmetric Supercapacitors ◽  
Nickel Cobalt ◽  
One Step ◽  
Double Hydroxide

Hierarchical three-dimensional (3D) porous structures of nickel–cobalt layered double hydroxide (LDH) are grown on diatomite biotemplate via one-step hydrothermal method.

N-Doped carbon nanofibers derived from bacterial cellulose as an excellent metal-free catalyst for selective oxidation of arylalkanes

2019 ◽  
Vol 55 (13) ◽  
pp. 1935-1938 ◽  
Author(s):  
Runkun Huang ◽  
Changyan Cao ◽  
Jian Liu ◽  
Dongping Sun ◽  
Weiguo Song
Keyword(s):  
Bacterial Cellulose ◽  
Carbon Nanofibers ◽  
Selective Oxidation ◽  
Low Cost ◽  
Metal Free ◽  
One Step

N-Doped carbon nanofibers derived from one-step pyrolysis of low-cost bacterial cellulose with the assistance of urea were an excellent metal-free carbocatalyst for selective oxidation of arylalkanes.

Hierarchical three-dimensional mesoporous MnO2 nanostructures for high performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (2) ◽  
pp. 587-595 ◽  
Author(s):  
Sourav Bag ◽  
C. Retna Raj
Keyword(s):  
Energy Density ◽  
High Performance ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

Nanocrystalline mesoporous α-MnO2 is synthesized for the fabrication of a high energy density aqueous asymmetric supercapacitor device.

MnO2 Nanoflowers and Reduced Graphene Oxide 3D Composites for Ultrahigh-Energy-Density Asymmetric Supercapacitors

2018 ◽  
Vol 6 (4) ◽  
pp. 737-743 ◽  
Author(s):  
Junying Zhang ◽  
Xiaoming Zhang ◽  
Zhi Liu ◽  
Jun Zheng ◽  
Yuhua Zuo ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Energy Density ◽  
Reduced Graphene Oxide ◽  
Ultrahigh Energy ◽  
Asymmetric Supercapacitors ◽  
Reduced Graphene

scholarly journals High energy density and extremely stable supercapacitors based on carbon aerogels with 100% capacitance retention up to 65,000 cycles

2021 ◽  
Vol 118 (21) ◽  
pp. e2105610118
Author(s):  
Yu Ma ◽  
Ding Chen ◽  
Zhi Fang ◽  
Yapeng Zheng ◽  
Weijun Li ◽  
...  
Keyword(s):  
Energy Storage ◽  
Energy Density ◽  
Bacterial Cellulose ◽  
Activated Carbons ◽  
Three Dimensional ◽  
High Energy ◽  
High Energy Density ◽  
Soft Template ◽  
Carbon Aerogels ◽  
Hierarchical Porous

In terms of ideal future energy storage systems, besides the always-pursued energy/power characteristics, long-term stability is crucial for their practical application. Here, we report a facile and sustainable strategy for the scalable fabrication of carbon aerogels with three-dimensional interconnected nanofiber networks and rationally designed hierarchical porous structures, which are based on the carbonization of bacterial cellulose assisted by the soft template of Zn-1,3,5-benzenetricarboxylic acid. As binder-free electrodes, they deliver a fundamentally enhanced specific capacitance of 352 F ⋅ g–1 at 1 A ⋅ g–1 in a wide potential window (1.2 V, 6 M KOH) in comparison with those of bacterial cellulose–derived carbons (178 F ⋅ g–1) and most activated carbons (usually lower than 250 F ⋅ g–1). The as-assembled supercapacitors exhibit an ultrahigh capacitance of 297 F ⋅ g−1 at 1 A ⋅ g−1, remarkable energy density (14.83 Wh ⋅ kg−1 at 0.60 kW ⋅ kg−1), and extremely high stability, with 100% capacitance retention for up to 65,000 cycles at 6 A ⋅ g−1, representing their superior energy storage performance when compared with that of state-of-the-art supercapacitors of commercial activated carbons and biomass-derived analogs.

Challenges and key parameters in exploring cyclability limitation of practical lithium-sulfur batteries

2021 ◽  
Author(s):  
Zhilong Han ◽  
Shuping Li ◽  
Yuanke Wu ◽  
Chuang Yu ◽  
Shijie Cheng ◽  
...  
Keyword(s):  
Energy Density ◽  
Low Cost ◽  
Ultrahigh Energy ◽  
Next Generation ◽  
Lithium Sulfur Batteries ◽  
Power Storage ◽  
Storage Technologies ◽  
Generation Power ◽  
Lithium Sulfur

Lithium−sulfur (Li–S) batteries have become the most promising candidates for next-generation power storage technologies owing to their ultrahigh energy density and low cost. However, the practical Li–S batteries, operated under...

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