NiCo2S4 Nanosheet Arrays on Carbon Cloth for Asymmetric Supercapacitors

2020 ◽  
Vol 15 (2) ◽  
pp. 301-305
Author(s):  
Xiaojuan Li ◽  
Guangmeng Qu ◽  
Hongxia Bu ◽  
Xijin Xu
Keyword(s):  
Energy Density ◽  
Electrochemical Properties ◽  
Crystal Structures ◽  
Specific Capacitance ◽  
Positive Electrode ◽  
Carbon Cloth ◽  
Cycle Stability ◽  
Asymmetric Supercapacitors ◽  
Nanosheet Arrays

NiCo2S4 nanosheet arrays have been successfully grown on carbon cloth via an easy hydrothermal way, which were then used to assemble asymmetric supercapacitors. The microstructures, the crystal structures and the electrochemical properties were carefully studied, and the NiCo2S4 nanosheet arrays exhibited impressive specific capacitance (SC) of 184.2 mAh/g at 1 A/g. The asymmetric supercapacitors (ASCs) with NiCo2S4 nanosheets as positive electrode demonstrated the energy density of 55.6 Wh/kg at 1.6 kW/kg. Furthermore, good cycle stability (93.72% after 5000 cycles) can be also possessed.

Construction of hierarchical layered hydroxide grown in situ on carbon tubes derived from a metal–organic framework for asymmetric supercapacitors

2021 ◽  
Author(s):  
Chunyan Li ◽  
Gaomin Zhang ◽  
Xin Li ◽  
Huiqin Wang ◽  
Pengwei Huo ◽  
...  
Keyword(s):  
Specific Surface ◽  
Specific Capacitance ◽  
Metal Organic Framework ◽  
Carbon Cloth ◽  
Large Specific Surface Area ◽  
Carbon Nanomaterial ◽  
Cycle Stability ◽  
Asymmetric Supercapacitors ◽  
Metal Organic

The NiGa-LDH@CNT-500@CC electrode prepared on carbon cloth has good specific capacitance and cycle stability. This is mainly due to the high conductivity and large specific surface area of carbon nanomaterial prepared by MOF.

scholarly journals Hierarchical Ni2P@Ni(OH)2 Architectures Supported On Carbon Cloth As Battery-Type Electrodes For Hybrid Supercapacitors With Boosting Specific Capacitance and Cycle Stability

2021 ◽  
Author(s):  
Yingying Lan ◽  
Hongna Xing ◽  
Yan Zong ◽  
Yong Sun ◽  
Linxue Zhang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
High Energy ◽  
High Energy Density ◽  
Hierarchical Architecture ◽  
Carbon Cloth ◽  
Electrochemical Characteristics ◽  
Cycle Stability ◽  
Hybrid Supercapacitors ◽  
Nanosheet Arrays ◽  
High Electronic Conductivity

Abstract In this work, a novel binder-free electrode, in which three-dimensional porous Ni2P@Ni(OH)2 nanosheet arrays were in-situ grown on carbon cloth (CC), is rationally designed for supercapacitor applications. In comparison with Ni2P@CC, the Ni2P@Ni(OH)2@CC electrode represents superior electrochemical characteristics: the gravimetric capacitance and areal capacitance are boosted to be 632 C g-1 and 0.73 C cm-2 at 1 mA cm-2, about 2 and 2.7 times larger than those of Ni2P@CC (321 C g-1 and 0.27 C cm-2), respectively; the rate capability is improved to be 63.3% from 1 to 10 mA cm-2, about 1.5 times larger than Ni2P@CC (42.9%); the cycle stability is enhanced to be 81.4% after 1000 cycles, about 1.6 times larger than Ni2P/CC (51.8%). The assembly Ni2P@Ni(OH)2@CC//AC hybrid supercapacitor device shows high energy density of 23.5 Wh kg-1 at a power density of 1158.0 W kg-1 and good cycling stability of 75.2% maintenance after 5000 cycles. Benefiting from the combined advantages of high electronic conductivity and large specific capacitance of Ni2P, superior anion exchanging/intercalating capacity of Ni(OH)2, excellent flexibility of carbon cloth and special hierarchical architecture with large surface area, the Ni2P@Ni(OH)2@CC electrode is promised to be a good candidate for supercapacitors.

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.

Hierarchical NiCo2O4 nanosheets@hollow microrod arrays for high-performance asymmetric supercapacitors

2014 ◽  
Vol 2 (13) ◽  
pp. 4706-4713 ◽  
Author(s):  
Xue-Feng Lu ◽  
Dong-Jun Wu ◽  
Run-Zhi Li ◽  
Qi Li ◽  
Sheng-Hua Ye ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
Thermal Annealing ◽  
High Performance ◽  
Cycle Stability ◽  
Asymmetric Supercapacitors ◽  
Environmental Friendly ◽  
Nico2o4 Nanosheets

Novel NiCo2O4 NSs@HNRAs are fabricated via a simple and environmental friendly template-assisted electrodeposition followed by thermal annealing and they exhibit predominant electrochemical properties and long-term cycle stability.

scholarly journals Porous Fe2O3 Nanorods on Hierarchical Porous Biomass Carbon as Advanced Anode for High-Energy-Density Asymmetric Supercapacitors

2020 ◽  
Vol 8 ◽  
Author(s):  
Pingping Yu ◽  
Wei Duan ◽  
Yanfeng Jiang
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Negative Electrode ◽  
High Energy ◽  
High Energy Density ◽  
Electrochemical Performances ◽  
Energy Storage Devices ◽  
Hydrothermal Route ◽  
Asymmetric Supercapacitors ◽  
Hierarchical Porous

In this study, a novel negative electrode material was prepared by aligning α-Fe2O3 nanorods on a hierarchical porous carbon (HPC) skeleton. The skeleton was derived from wheat flour by a facile hydrothermal route to enhance conductivity, improve surface properties, and achieve substantially good electrochemical performances. The α-Fe2O3/HPC electrode exhibits enhanced specific capacitance of 706 F g−1, which is twice higher than that of α-Fe2O3. The advanced α-Fe2O3/HPC//PANI/HPC asymmetrical supercapacitor was built with an expanded voltage of 2.0 V in 1 M Li2SO4, possessing a specific capacitance of 212 F g−1 at 1 A g−1 and a maximum energy density of 117 Wh kg−1 at 1.0 kW kg−1, along with an excellent stability of 5.8% decay in capacitance after 5,000 cycles. This study affords a simple process to develop asymmetric supercapacitors, which exhibit high electrochemical performances and are applicable in next-generation energy storage devices, based on α-Fe2O3 hybrid materials.

β-NiMoO4 nanowire arrays grown on carbon cloth for 3D solid asymmetry supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (129) ◽  
pp. 107098-107104 ◽  
Author(s):  
Chuanshen Wang ◽  
Yi Xi ◽  
Chenguo Hu ◽  
Shuge Dai ◽  
Mingjun Wang ◽  
...  
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Power Density ◽  
High Energy ◽  
Nanowire Arrays ◽  
High Energy Density ◽  
Carbon Cloth ◽  
Maximum Power Density ◽  
Capacity Retention ◽  
3D Solid

A β-NiMoO4 NW supercapacitor lights one LED for 260 s and delivers a large specific capacitance (414.7 F g−1 at 0.25 A g−1), high energy density (36.86 W h kg−1), a maximum power density of 1100 W kg−1 and 65.96% capacity retention after 6000 cycles.

Flexible Asymmetric Supercapacitors Based upon Co9S8 Nanorod//Co3O4@RuO2 Nanosheet Arrays on Carbon Cloth

ACS Nano ◽  
2013 ◽  
Vol 7 (6) ◽  
pp. 5453-5462 ◽  
Author(s):  
Jing Xu ◽  
Qiufan Wang ◽  
Xiaowei Wang ◽  
Qingyi Xiang ◽  
Bo Liang ◽  
...  
Keyword(s):  
Carbon Cloth ◽  
Asymmetric Supercapacitors ◽  
Nanosheet Arrays
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