Engineering thermally activated NiMoO4 nanoflowers and biowaste derived activated carbon-based electrodes for high-performance supercapatteries

2020 ◽  
Vol 7 (2) ◽  
pp. 369-384 ◽  
Author(s):  
C. Justin Raj ◽  
Ramu Manikandan ◽  
Kook Hyun Yu ◽  
Goli Nagaraju ◽  
Myung-Soo Park ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
High Performance ◽  
Crystalline Phases ◽  
Positive Electrodes ◽  
Thermally Activated ◽  
Amorphous Surface ◽  
Carbon Based

NiMoO4 nanoflowers having pure crystalline phases with slight amorphous surface exhibited excellent battery-like electrochemical performance and potential for supercapattery positive electrodes.

High performance N-doped porous activated carbon based on chicken feather for supercapacitors and CO2 capture

RSC Advances ◽  
2015 ◽  
Vol 5 (44) ◽  
pp. 34803-34811 ◽  
Author(s):  
Zijian Zhao ◽  
Yong Wang ◽  
Min Li ◽  
Ru Yang
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Co2 Capture ◽  
High Performance ◽  
Chicken Feather ◽  
Porous Carbons ◽  
Excellent Electrochemical Performance ◽  
Porous Activated Carbon ◽  
Carbon Based

The chicken feather-derived N-doped porous carbons exhibit excellent electrochemical performance and high CO2 uptake.

A conductive thin layer on prepared positive electrodes by vapour reaction printing for high-performance lithium-ion batteries

2017 ◽  
Vol 5 (40) ◽  
pp. 21214-21222 ◽  
Author(s):  
Jinhyeok Ahn ◽  
Sukeun Yoon ◽  
Seul Gi Jung ◽  
Jin-Heong Yim ◽  
Kuk Young Cho
Keyword(s):  
Electrochemical Performance ◽  
Thin Layer ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Positive Electrodes ◽  
Pedot Layer

By covering prepared electrodes with a PEDOT layer via VRP, the electrodes exhibited improved electrochemical performance compared to bare electrodes.

Synergistically boosting electrochemical performance of polypyrrole coated-activated carbon derived from carbon dots for high-performance supercapacitor

2021 ◽  
Author(s):  
Lanxin Wang ◽  
QingXin Zeng ◽  
Qiuhong Chen ◽  
Chang Ming Li ◽  
Jiucun Chen
Keyword(s):  
Activated Carbon ◽  
Electrochemical Performance ◽  
Hybrid Materials ◽  
Carbon Dots ◽  
High Performance ◽  
Carbon Materials ◽  
The Stability

The hybrid materials prepared by the controlled fumigation polymerization of pyrrole on the surface of activated carbon derived from carbon dots combined the stability of carbon materials, the wettability of...

Design of an intermediate carbon layer between bimetallic sulfide and a carbon-based substrate for high-performance asymmetric supercapacitors

2018 ◽  
Vol 42 (15) ◽  
pp. 12511-12519 ◽  
Author(s):  
Mengnan Hua ◽  
Ting Chen ◽  
Houyi Ma
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Carbon Layer ◽  
Asymmetric Supercapacitors ◽  
Bimetallic Sulfide ◽  
Carbon Based

A strategy for enhancing the electrochemical performance of ASCs via constructing an intermediate carbon layer onto a carbon-based substrate.

NiS nanosheets synthesized by one-step microwave for high-performance supercapacitor

2021 ◽  
Author(s):  
Jun Song ◽  
Lijun Du ◽  
Jingyi Wang ◽  
Huaiping Zhang ◽  
Yaodong Zhang ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
Microwave Radiation ◽  
High Performance ◽  
Negative Electrode ◽  
Asymmetric Supercapacitor ◽  
Capacity Retention ◽  
One Step

The NiS nanosheets were fabricated using one-step microwave approach with the microwave radiation of 800 W for 1.5 min. Impressively, the NiS nanosheets revealed praiseworthy electrochemical performance, with a capacitance value of 1082.8 F ⋅ g[Formula: see text] at 1 A ⋅ g[Formula: see text] and 77.8% retention over 5000 cycles at 5 A ⋅ g[Formula: see text]. Moreover, an asymmetric supercapacitor was assembled with NiS as the positive electrode and activated carbon (AC) as the negative electrode. It shows 80.42% capacity retention after 8000 cycles and an energy density of 19.45 W ⋅ h ⋅ kg[Formula: see text] at a power density of 801.05 W ⋅ kg[Formula: see text].

scholarly journals Hydrothermal synthesis of cobalt telluride nanorods for a high performance hybrid asymmetric supercapacitor

RSC Advances ◽  
2020 ◽  
Vol 10 (23) ◽  
pp. 13632-13641 ◽  
Author(s):  
M. Manikandan ◽  
K. Subramani ◽  
M. Sathish ◽  
S. Dhanuskodi
Keyword(s):  
Activated Carbon ◽  
Hydrothermal Synthesis ◽  
Power Density ◽  
High Performance ◽  
High Energy ◽  
Electrochemical Stability ◽  
Asymmetric Supercapacitor ◽  
One Step ◽  
Carbon Based

A one-step hydrothermal derived cobalt telluride nanorods and activated carbon-based hybrid asymmetric supercapacitor delivered a high energy (40.7 W h kg−1) and power density (22.5 kW kg−1) with an electrochemical stability of 85% for 10000 cycles.

Activated Carbon/MnO2 Composites as Electrode for High Performance Supercapacitors

Catalysts ◽  
2020 ◽  
Vol 10 (2) ◽  
pp. 256 ◽  
Author(s):  
Jang Rak Choi ◽  
Ji Won Lee ◽  
Guijun Yang ◽  
Young-Jung Heo ◽  
Soo-Jin Park
Keyword(s):  
Composite Material ◽  
Activated Carbon ◽  
Electrochemical Performance ◽  
Electrochemical Properties ◽  
Specific Capacitance ◽  
Carbon Material ◽  
High Performance ◽  
Cycle Performance ◽  
Stable Cycle ◽  
Hydrothermal Approach

Activated carbon (AC) was synthesized with various weight ratios of manganese dioxide (MO) through a simple hydrothermal approach. The electrochemical performance of the synthesized activated carbon/MnO2 composites was investigated. The effect of the activated carbon/MnO2 (AM) ratio on the electrochemical properties of the activated carbon/MnO2 composites and the pore structure was also examined. The results show that the specific capacitance of the activated carbon material has been improved after the addition of MO. The as-synthesized composite material exhibits specific capacitance of 60.3 F g−1 at 1 A g−1, as well as stable cycle performance and 99.6% capacitance retention over 5000 cycles.

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