Mixed-Phase MnO2/N-Containing Graphene Composites Applied as Electrode Active Materials for Flexible Asymmetric Solid-State Supercapacitors
Abstract
:1. Introduction
2. Experimental
2.1. Preparation of G
2.2. Preparation of NG Composites
2.3. Preparation of NG/MnO2 (NGM) Composites
2.4. Fabrication of Electrodes
2.5. Characterization
2.6. Electrochemical Measurements
3. Results and Discussion
4. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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Electrode | RCT (Ω) | Electrode | RCT (Ω) | Electrode | RCT (Ω) |
---|---|---|---|---|---|
G1 | 3.27 | 1-NGM2 | 2.49 | 3-NGM3 | 1.70 |
G2 | 3.52 | 1-NGM3 | 8.42 | 4-NGM1 | 8.06 |
G3 | 12.83 | 2-NGM1 | 1.28 | 4-NGM2 | 8.43 |
NG1 | 2.22 | 2-NGM2 | 1.35 | 4-NGM3 | 9.46 |
NG2 | 2.98 | 2-NGM3 | 2.14 | 5-NGM1 | 9.29 |
NG3 | 9.21 | 3-NGM1 | 1.15 | 5-NGM2 | 9.40 |
1-NGM1 | 2.17 | 3-NGM2 | 1.23 | 5-NGM3 | 11.60 |
Electrode | Scan Rate (mV·s−1) | Specific Capacitance (F·g−1) | Energy Density (Wh·kg−1) | Power Density (W·kg−1) |
---|---|---|---|---|
G1 | 100 | 243 | 141.9 | 930.5 |
G2 | 100 | 99 | 57.5 | 889.0 |
G3 | 100 | 14 | 8.3 | 381.8 |
NG1 | 100 | 247 | 144.4 | 810.9 |
NG2 | 100 | 104 | 60.6 | 375.5 |
NG3 | 100 | 45 | 26.1 | 224.9 |
1-NGM1 | 100 | 416 | 243.2 | 959.9 |
1-NGM2 | 100 | 223 | 130.4 | 662.3 |
1-NGM3 | 100 | 154 | 90.1 | 572.9 |
2-NGM1 | 100 | 516 | 301.6 | 6556.8 |
2-NGM2 | 100 | 267 | 155.7 | 6370.1 |
2-NGM3 | 100 | 173 | 100.7 | 6407.3 |
3-NGM1 | 100 | 638 | 372.7 | 4731.1 |
3-NGM2 | 100 | 298 | 174.2 | 7208.0 |
3-NGM3 | 100 | 192 | 112.0 | 6001.7 |
4-NGM1 | 100 | 141 | 82.0 | 7959.5 |
4-NGM2 | 100 | 62 | 36.4 | 6689.0 |
4-NGM3 | 100 | 36 | 20.9 | 6105.0 |
5-NGM1 | 100 | 94 | 55.0 | 7799.2 |
5-NGM2 | 100 | 40 | 23.4 | 4918.4 |
5-NGM3 | 100 | 12 | 7.1 | 2227.0 |
Electrode | Current Density (A·g−1) | Specific Capacitance (F·g−1) | Energy Density (Wh·kg−1) | Power Density (W·kg−1) |
---|---|---|---|---|
G1 | 0.2 | 113 | 38.0 | 249.2 |
G2 | 0.1 | 24 | 8.1 | 124.6 |
G3 | 0.07 | 5 | 1.8 | 83.1 |
NG1 | 0.2 | 132 | 44.4 | 249.2 |
NG2 | 0.1 | 60 | 20.1 | 124.6 |
NG3 | 0.07 | 29 | 9.7 | 83.1 |
1-NGM1 | 0.2 | 188 | 63.1 | 249.2 |
1-NGM2 | 0.1 | 73 | 24.5 | 124.6 |
1-NGM3 | 0.07 | 39 | 13.1 | 83.1 |
2-NGM1 | 1 | 172 | 57.8 | 1100.0 |
2-NGM2 | 1 | 69 | 23.1 | 1100.0 |
2-NGM3 | 1 | 46 | 15.4 | 1100.0 |
3-NGM1 | 1 | 258 | 86.7 | 1100.0 |
3-NGM2 | 1 | 79 | 26.6 | 1100.0 |
3-NGM3 | 1 | 61 | 20.5 | 1100.0 |
2-NGM1 | 3 | 44 | 14.7 | 1100.0 |
2-NGM2 | 3 | 14 | 4.6 | 3300.0 |
2-NGM3 | 3 | 4 | 1.3 | 3300.0 |
3-NGM1 | 3 | 56 | 18.8 | 3300.0 |
3-NGM2 | 3 | 38 | 12.7 | 3300.0 |
3-NGM3 | 3 | 6 | 2.1 | 3300.0 |
2-NGM1 | 5 | 35 | 11.8 | 5500.0 |
2-NGM2 | 5 | 6 | 2.1 | 5500.0 |
3-NGM1 | 5 | 36 | 11.9 | 5500.0 |
3-NGM2 | 5 | 11 | 3.5 | 5500.0 |
2-NGM1 | 7 | 26 | 8.6 | 7700.0 |
3-NGM1 | 7 | 29 | 9.6 | 7700.0 |
3-NGM2 | 7 | 7 | 2.4 | 7700.0 |
2-NGM1 | 9 | 12 | 3.9 | 9900.0 |
3-NGM1 | 9 | 13 | 4.4 | 9900.0 |
4-NGM1 | 0.1 | 3 | 1.1 | 110.0 |
4-NGM2 | 0.1 | 2 | 0.6 | 110.0 |
4-NGM3 | 0.1 | 1 | 0.4 | 110.0 |
5-NGM1 | 0.1 | 2 | 0.8 | 110.0 |
5-NGM2 | 0.1 | 1.6 | 0.5 | 110.0 |
5-NGM3 | 0.1 | 1 | 0.3 | 110.0 |
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Chiu, H.-Y.; Cho, C.-P. Mixed-Phase MnO2/N-Containing Graphene Composites Applied as Electrode Active Materials for Flexible Asymmetric Solid-State Supercapacitors. Nanomaterials 2018, 8, 924. https://doi.org/10.3390/nano8110924
Chiu H-Y, Cho C-P. Mixed-Phase MnO2/N-Containing Graphene Composites Applied as Electrode Active Materials for Flexible Asymmetric Solid-State Supercapacitors. Nanomaterials. 2018; 8(11):924. https://doi.org/10.3390/nano8110924
Chicago/Turabian StyleChiu, Hsin-Ya, and Chun-Pei Cho. 2018. "Mixed-Phase MnO2/N-Containing Graphene Composites Applied as Electrode Active Materials for Flexible Asymmetric Solid-State Supercapacitors" Nanomaterials 8, no. 11: 924. https://doi.org/10.3390/nano8110924