Engineering onion-like nanoporous CuCo2O4 hollow spheres derived from bimetal–organic frameworks for high-performance asymmetric supercapacitors

2018 ◽  
Vol 6 (22) ◽  
pp. 10497-10506 ◽  
Author(s):  
Ali A. Ensafi ◽  
Seyyed Ebrahim Moosavifard ◽  
B. Rezaei ◽  
Saeid Kamari Kaverlavani
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Hollow Spheres ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

An asymmetric supercapacitor fabricated using onion-like nanoporous CuCo2O4 hollow spheres exhibits an energy density of 48.75 W h kg−1 and a power density of 37.5 kW kg−1, which can compete with Ni–MH batteries.

Facile fabrication of Co2CuS4 nanoparticle anchored N-doped graphene for high-performance asymmetric supercapacitors

2016 ◽  
Vol 4 (44) ◽  
pp. 17560-17571 ◽  
Author(s):  
Meng Guo ◽  
Jayaraman Balamurugan ◽  
Tran Duy Thanh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
Cycling Stability ◽  
Asymmetric Supercapacitor ◽  
High Power Density ◽  
Asymmetric Supercapacitors ◽  
Doped Graphene ◽  
Facile Fabrication

A novel Co2CuS4/NG composite based asymmetric supercapacitor delivers superb energy density (~53.3 W h kg−1), high power density (~10936 W kg−1 at 38.4 W h kg−1) and outstanding cycling stability (~4000 cycles).

Flexible high-energy asymmetric supercapacitors based on MnO@C composite nanosheet electrodes

2017 ◽  
Vol 5 (2) ◽  
pp. 804-813 ◽  
Author(s):  
Neng Yu ◽  
Kai Guo ◽  
Wei Zhang ◽  
Xianfu Wang ◽  
Ming-Qiang Zhu
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Positive Electrodes

A flexible asymmetric supercapacitor assembled with novel MnO@C composite nanosheets and Co3O4 nanosheets as negative and positive electrodes achieves an exceptional energy density of 59.6 W h kg−1 at a power density of 1529.8 W kg−1.

Tailoring the morphology followed by the electrochemical performance of NiMn-LDH nanosheet arrays through controlled Co-doping for high-energy and power asymmetric supercapacitors

2017 ◽  
Vol 46 (38) ◽  
pp. 12876-12883 ◽  
Author(s):  
Saurabh Singh ◽  
Nanasaheb M. Shinde ◽  
Qi Xun Xia ◽  
Chandu V. V. M. Gopi ◽  
Je Moon Yun ◽  
...  
Keyword(s):  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Energy ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Co Doping ◽  
Nanosheet Arrays

A NiCoMn-LDH (10%)//rGO asymmetric supercapacitor device with 574 Wh kg−1 energy density at 749.9 W kg−1 power density and 89.4% retention even after 2500 cycles has been explored.

A high performance solid state asymmetric supercapacitor device based upon NiCo2O4nanosheets//MnO2microspheres

RSC Advances ◽  
2016 ◽  
Vol 6 (74) ◽  
pp. 70292-70302 ◽  
Author(s):  
Syed Khalid ◽  
Chuanbao Cao ◽  
Lin Wang ◽  
Youqi Zhu ◽  
Yu Wu
Keyword(s):  
Solid State ◽  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
Asymmetric Supercapacitor ◽  
State Device ◽  
Solid State Device

The volumetric energy density and power density of a novel solid state device (NiCo2O4//MnO2) are much higher than most reported devices.

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.

scholarly journals In situ construction of yolk–shell zinc cobaltite with uniform carbon doping for high performance asymmetric supercapacitors

2018 ◽  
Vol 6 (19) ◽  
pp. 9109-9115 ◽  
Author(s):  
Xiaoya Chang ◽  
Lei Zang ◽  
Song Liu ◽  
Mengying Wang ◽  
Huinan Guo ◽  
...  
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Carbon Doping ◽  
High Energy Density ◽  
Asymmetric Supercapacitors

Yolk–shell ZnCo2O4 with in situ formed carbon shows great potential for supercapacitors, which delivers high energy density and power density.

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.

A facile method for synthesizing CuS decorated Ti3C2 MXene with enhanced performance for asymmetric supercapacitors

2019 ◽  
Vol 7 (15) ◽  
pp. 8984-8992 ◽  
Author(s):  
Zhihu Pan ◽  
Fa Cao ◽  
Xing Hu ◽  
Xionghong Ji
Keyword(s):  
Energy Density ◽  
Power Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors

A Ti3C2–CuS//Ti3C2 asymmetric supercapacitor device exhibited an energy density of 15.4 W h kg−1 at a power density of 750.2 W kg−1.

Hollow NiCo2S4 nanotube arrays grown on carbon textile as a self-supported electrode for asymmetric supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 9950-9957 ◽  
Author(s):  
Liang Hao ◽  
Laifa Shen ◽  
Jie Wang ◽  
Yunling Xu ◽  
Xiaogang Zhang
Keyword(s):  
Energy Density ◽  
Power Density ◽  
High Power ◽  
High Energy ◽  
High Energy Density ◽  
Nanotube Arrays ◽  
Asymmetric Supercapacitor ◽  
High Power Density ◽  
Asymmetric Supercapacitors

We developed an asymmetric supercapacitor using NiCo2S4 nanotube arrays grown on carbon textile, achieving a high energy density (∼40.1 W h kg−1 at 451 W kg−1), a high power density (∼4725 W kg−1 at 21 W h kg−1) and excellent cyclability.

Hydrothermal synthesis of CuCo2O4/CuO nanowire arrays and RGO/Fe2O3 composites for high-performance aqueous asymmetric supercapacitors

2016 ◽  
Vol 4 (25) ◽  
pp. 9977-9985 ◽  
Author(s):  
Yidan Wang ◽  
Cheng Shen ◽  
Lengyuan Niu ◽  
Rongzhen Li ◽  
Huatong Guo ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Energy Density ◽  
High Performance ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Asymmetric Supercapacitor ◽  
Asymmetric Supercapacitors ◽  
Cuo Nanowire

A CuCo2O4/CuO//RGO/Fe2O3 asymmetric supercapacitor was fabricated and it delivered a high energy density of 33.0 W h kg−1.

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