Synthesis of rGO/g-C3N4 Composite Cathodes for Li – Ion – Oxygen Battery
Abstract
The low-cost electro-catalysts are very crucial for the lithium-ion oxygen battery electrodes. In this work porous reduced graphene oxide (rGO) was synthesized by the chemical methods and mixed with melamine to obtain rGO/graphitic-C3N4 (g-C3N4) composite which compose of 50% rGO and 50% g-C3N4. SEM, XRD and FTIR characterizations showed that the synthesized composite structure reflected most of the features of the rGO structure. The synthesized rGO/g-C3N4 composite was prepared as the cathode for the Li-ion-oxygen battery and its discharge/charge performance was determined. The composite cathode demonstrated a distinctive performance since g-C3N4 catalyzed both the oxygen reduction and oxygen evolution reactions during the discharging and charging. This work showed that rGO/g-C3N4 composite electrode was quite promising as the cost-effective cathode for the Li-ion-oxygen batteries.
References
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Abstract
References
- Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J. M. (2012). Li–O 2 and Li–S batteries with high energy storage. Nature materials, 11(1), 19-29.
- Han, X., Cheng, F., Chen, C., Hu, Y., & Chen, J. (2015). Uniform MnO 2 nanostructures supported on hierarchically porous carbon as efficient electrocatalysts for rechargeable Li-O 2 batteries. Nano Research, 8(1), 156-164.
- Jung, H. G., Jeong, Y. S., Park, J. B., Sun, Y. K., Scrosati, B., & Lee, Y. J. (2013). Ruthenium-based electrocatalysts supported on reduced graphene oxide for lithium-air batteries. Acs Nano, 7(4), 3532-3539.
- Niu, P., Zhang, L., Liu, G., & Cheng, H. M. (2012). Graphene‐like carbon nitride nanosheets for improved photocatalytic activities. Advanced Functional Materials, 22(22), 4763-4770.
- Zhang, T., & Zhou, H. (2013). A reversible long-life lithium–air battery in ambient air. Nature communications, 4(1), 1-7.
Details
| Primary Language | English |
|---|---|
| Subjects | Engineering |
| Journal Section | Articles |
| Authors | |
| Publication Date | December 31, 2021 |
| Published in Issue | Year 2021 Volume: 16 |
