A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices
Abstract
:1. Introduction
2. Materials and Methods
2.1. Preparation of rGO and rGO-MoO2 Aerogels
2.2. Materials Characterizations
2.3. Electrodes Preparation
2.4. Electrochemical Characterization
3. Results and Discussion
3.1. Chemical-Physical Characterization
3.1.1. rGO and rGO-vitC
3.1.2. rGO-MoO2-vitC
3.2. Electrochemical Characterization
3.2.1. Comparison between rGO obtained without and with l-AA
3.2.2. Effect of l-Ascorbic Acid on rGO-vitC and rGO-MoO2-vitC: Three electrode and device performances
4. Conclusions
Supplementary Materials
Author Contributions
Funding
Conflicts of Interest
References
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Sample | C (at%) | O (at%) | C/O |
---|---|---|---|
commercial GO | 65.3 ± 0.4 * | 33.4 ± 0.3 * | 1.95 ± 0.02 |
rGO | 84.3 ± 0.3 | 15.7 ± 0.3 | 5.4 ± 0.1 |
rGO-vitC (1 mg/mL) | 86.3 ± 0.3 | 13.7 ± 0.3 | 6.3± 0.1 |
rGO-vitC (2 mg/mL) | 88.3 ± 0.3 | 11.7 ± 0.3 | 7.5 ± 0.2 |
rGO-vitC | rGO-MoO2-vitC | ||||
---|---|---|---|---|---|
Scan Rate | Anodic Scan | Cathodic Scan | Scan Rate | Anodic Scan | Cathodic Scan |
(V/s) | (F g−1) | (F g−1) | (V/s) | (F g−1) | (F g−1) |
1 | 10 | 11 | 1 | 27 | 27 |
0.75 | 12 | 12 | 0.75 | 33 | 32 |
0.5 | 15 | 15 | 0.5 | 43 | 41 |
0.4 | 17 | 18 | 0.4 | 49 | 46 |
0.3 | 20 | 21 | 0.3 | 58 | 57 |
0.2 | 24 | 25 | 0.2 | 71 | 71 |
0.1 | 33 | 33 | 0.1 | 104 | 96 |
0.075 | 35 | 36 | 0.075 | 117 | 111 |
0.05 | 39 | 40 | 0.05 | 132 | 134 |
0.03 | 44 | 42 | 0.03 | 155 | 154 |
0.01 | 44 | 44 | 0.01 | 190 | 197 |
0.0075 | 44 | 43 | 0.0075 | 196 | 200 |
0.005 | 42 | 43 | 0.005 | 199 | 210 |
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Serrapede, M.; Fontana, M.; Gigot, A.; Armandi, M.; Biasotto, G.; Tresso, E.; Rivolo, P. A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices. Materials 2020, 13, 594. https://doi.org/10.3390/ma13030594
Serrapede M, Fontana M, Gigot A, Armandi M, Biasotto G, Tresso E, Rivolo P. A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices. Materials. 2020; 13(3):594. https://doi.org/10.3390/ma13030594
Chicago/Turabian StyleSerrapede, Mara, Marco Fontana, Arnaud Gigot, Marco Armandi, Glenda Biasotto, Elena Tresso, and Paola Rivolo. 2020. "A Facile and Green Synthesis of a MoO2-Reduced Graphene Oxide Aerogel for Energy Storage Devices" Materials 13, no. 3: 594. https://doi.org/10.3390/ma13030594