Polypyrrole-coated manganese dioxide with multiscale architectures for ultrahigh capacity energy storage

2015 ◽  
Vol 8 (10) ◽  
pp. 3030-3039 ◽  
Author(s):  
Jun Seop Lee ◽  
Dong Hoon Shin ◽  
Jyongsik Jang
Keyword(s):  
Energy Storage ◽  
Manganese Dioxide ◽  
Coating Process ◽  
Asymmetric Supercapacitors ◽  
One Dimensional

One-dimensional MnO2-based multiscale micronodules were fabricated through a facile electrodeposition and coating process to produce ultrahigh performance flexible asymmetric supercapacitors.

Hybrid Co3O4/Co9S8 Nanowires for High-Performance Asymmetric Supercapacitors

2020 ◽  
Vol 15 (2) ◽  
pp. 237-242 ◽  
Author(s):  
Yongli Tong ◽  
Xinyu Cheng ◽  
Xiaoyun Liu ◽  
Dongli Qi ◽  
Baoqian Chi ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Nickel Foam ◽  
High Specific Capacitance ◽  
Energy Storage Materials ◽  
Step Method ◽  
Asymmetric Supercapacitors ◽  
One Dimensional ◽  
Prepared Material ◽  
Vulcanization Process

We successfully synthesize hierarchical Co3O4@Co9S8 nanowires on nickel foam by a facile two-step method. The as-prepared samples show one-dimensional nanowires decorated with uneven surface after vulcanization process with pure Co3O4 nanowires to form Co3O4 @Co9S8 composite, which exhibit high specific capacitance of 2667 F g–1 at 12 A g–1, maintaining 76.78% capacitance retention of initial capacitance. The assembled asymmetric supercapacitor (ASC) device shows excellent capability of energy storage and power output with an energy density of 267.9 mW h cm–3 at power density of 7.5 W cm–3 and 187.5 mW h cm–3 at 15 W cm–3. In addition, it exhibits excellent cycling capability with 84.2% retention after 6000 cycles. Therefore, the as-prepared material can be used as promising energy storage materials.

scholarly journals High valence state metal-ion doped Fe-Ni layered double hydroxide for oxygen evolution electrocatalyst and asymmetric supercapacitors

2022 ◽  
Author(s):  
Wenke Shao ◽  
Qiufan Wang ◽  
Can Huang ◽  
Daohong Zhang
Keyword(s):  
Energy Storage ◽  
Layered Double Hydroxide ◽  
Metal Ion ◽  
Energy Storage Materials ◽  
Asymmetric Supercapacitors ◽  
One Dimensional ◽  
Nickel Iron ◽  
Multiple Components ◽  
High Valence State ◽  
Double Hydroxide

Delicate design of nanostructures consisting of multiple components is an important strategy for energy storage materials. In this work, cobalt-doped nickel-iron layered double hydroxide (Fe-Ni3Co2 LDH) assembling from one-dimensional (1D)...

The growth and assembly of the multidimensional hierarchical Ni3S2 for aqueous asymmetric supercapacitors

CrystEngComm ◽  
2015 ◽  
Vol 17 (24) ◽  
pp. 4495-4501 ◽  
Author(s):  
Bin Yang ◽  
Lei Yu ◽  
Qi Liu ◽  
Jingyuan Liu ◽  
Wanlu Yang ◽  
...  
Keyword(s):  
Thin Film ◽  
Energy Storage ◽  
High Performance ◽  
Electrode Materials ◽  
Hydrothermal Process ◽  
Nanorod Arrays ◽  
Asymmetric Supercapacitors ◽  
One Step ◽  
Step Growth

We synthesized the mushroom-like Ni3S2 with step by step growth that is the thin film growing on the nanorod arrays with one-step hydrothermal process, which is a novel ways to fabricate the multidimensional hierarchical electrode materials for high performance energy storage.

High energy density asymmetric supercapacitors based on MOF-derived nanoporous carbon/manganese dioxide hybrids

2017 ◽  
Vol 322 ◽  
pp. 582-589 ◽  
Author(s):  
Mengyao Yao ◽  
Xin Zhao ◽  
Lei Jin ◽  
Fangyuan Zhao ◽  
Junxian Zhang ◽  
...  
Keyword(s):  
Energy Density ◽  
Manganese Dioxide ◽  
High Energy ◽  
Nanoporous Carbon ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Designing graphene-wrapped nanoporous CuCo2O4 hollow spheres electrodes for high-performance asymmetric supercapacitors

2017 ◽  
Vol 5 (27) ◽  
pp. 14301-14309 ◽  
Author(s):  
S. Kamari Kaverlavani ◽  
S. E. Moosavifard ◽  
A. Bakouei
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Storage Systems ◽  
Rapid Development ◽  
Hollow Spheres ◽  
Green Energy ◽  
Energy Storage Systems ◽  
Asymmetric Supercapacitors ◽  
Portable Electronics ◽  
Increasing Demand

Increasing demand for green energy storage systems, arising from the rapid development of portable electronics, has triggered tremendous research efforts for designing new or high-performance electrodes.

Metal–organic framework-templated synthesis of sulfur-doped core–sheath nanoarrays and nanoporous carbon for flexible all-solid-state asymmetric supercapacitors

Nanoscale ◽  
2018 ◽  
Vol 10 (33) ◽  
pp. 15454-15461 ◽  
Author(s):  
Simeng Dai ◽  
Yan Yuan ◽  
Jiangsheng Yu ◽  
Jian Tang ◽  
Jie Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
Solid State ◽  
Metal Organic Framework ◽  
Nanoporous Carbon ◽  
Asymmetric Supercapacitors ◽  
Templated Synthesis ◽  
Metal Organic ◽  
Organic Framework

MOFs are adopted for facile synthesizing hierarchical hollow architectures for energy storage.

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