Synthesis of Tungsten Disulfide on B-N-Doped Carbon Nanotubes to Enhance the Electrochemical Performance of Supercapacitors

Year 2024, , 563 - 572, 31.08.2024

Yaşar Özkan Yeşilbağ , Fatma Nur Tuzluca , Ahmad Hüseyin , Ahmed Jalal Salıh

https://doi.org/10.18185/erzifbed.1517346

Abstract

In this research, boron and nitrogen-doped carbon nanotubes (B-N-CNTs) were synthesized at 900°C using the FCCVD method. Carbon, nitrogen, and boron as source materials were simultaneously introduced using a batch- mode droplet reactor and ferrocene as a catalyst. B-N-CNTs were obtained with diameters ranging from 10 - 50 nm and lengths around 30 – 80 μm. These B-N-CNTs were thoroughly characterized and structurally analyzed. Subsequently, tungsten disulfide (WS2) nanosheets on B-N-CNTs were synthesized using the hydrothermal method to design a composite material and were investigated as electrodes for supercapacitors. The morphological properties of B-N-CNT@WS2 were determined by various analytical techniques such as XRD, FESEM, XPS, and EDS. B-N-CNT@WS2 was investigated as an electrode for supercapacitors in two- and three-electrode cells. In the three-electrode cell, B-N-CNT@WS2 exhibited a specific capacitance of 320 F g−1 at a current density of 0.5 A g−1, while the two-electrode cell showed a capacitance of 41 F g−1. The symmetric supercapacitor at a current density of 5 A g−1 exhibited excellent structural stability by preserving 90% of its specific capacitance after 9000 cycles in the 1 V potential range.

Keywords

B-N-CNTs, WS2, composite electrode, supercapacitor

Supporting Institution

TÜBİTAK

Project Number

217M323

Thanks

Desteklerinden dolayı TÜBİTAK'a teşekkür ediyoruz

References

• Béguin, F., Presser, V., Balducci, A., & Frackowiak, E. (2014). Carbons and electrolytes for advanced supercapacitors. Advanced materials, 26(14), 2219-2251.
• ‏Chen, Z., Hou, L., Cao, Y., Tang, Y., & Li, Y. (2018). Gram-scale production of B, N co-doped graphene-like carbon for high performance supercapacitor electrodes. Applied Surface Science, 435, 937-944.
• Choudhary, N., Li, C., Chung, H. S., Moore, J., Thomas, J., & Jung, Y. (2016). High-performance one-body core/shell nanowire supercapacitor enabled by conformal growth of capacitive 2D WS2 layers. ACS nano, 10(12), 10726-10735. ‏ Dai, Y., Wu, X., Sha, D., Chen, M., Zou, H., Ren, J., ... & Yan, X. (2016). Facile self-assembly of Fe3O4 nanoparticles@WS2 nanosheets: a promising candidate for supercapacitor electrode. Electronic Materials Letters, 12, 789-794. ‏ Kim, Y. S., Kumar, K., Fisher, F. T., & Yang, E. H. (2011). Out-of-plane growth of CNTs on graphene 2- for supercapacitor applications. Nanotechnology, 23(1), 015301. ‏‏ Kinoshita, T., Karita, M., Nakano, T., & Inoue, Y. 2019. “Two step floating catalyst chemical vapor deposition including in situ fabrication of catalyst nanoparticles and carbon nanotube forest growth with low impurity level”. Carbon, 144, 152-160. ‏