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Exceptional catalytic effects of black phosphorus quantum dots in shuttling-free lithium sulfur batteries
Open accessAbstract
Lithium sulfur batteries with high energy densities are promising next-generation energy storage systems. However, shuttling and sluggish conversion of polysulfides to solid lithium sulfides limit the full utilization of active materials. Physical/chemical confinement is useful for anchoring polysulfides, but not effective for utilizing the blocked intermediates. Here, we employ black phosphorus quantum dots as electrocatalysts to overcome these issues. Both the experimental and theoretical results reveal that black phosphorus quantum dots effectively adsorb and catalyze polysulfide conversion. The activity is attributed to the numerous catalytically active sites on the edges of the quantum dots. In the presence of a small amount of black phosphorus quantum dots, the porous carbon/sulfur cathodes exhibit rapid reaction kinetics and no shuttling of polysulfides, enabling a low capacity fading rate (0.027% per cycle over 1000 cycles) and high areal capacities. Our findings demonstrate application of a metal-free quantum dot catalyst for high energy rechargeable batteries.
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Cited by
Emerging Catalysts to Promote Kinetics of Lithium–Sulfur Batteries
Wang, P., Xi, B., Huang, M., Chen, W., Feng, J., & Xiong, S. (2021) · Advanced Energy Materials · doi:10.1002/aenm.202002893 · Cited by 451
Ye, Z., Jiang, Y., Li, L., Wu, F., & Chen, R. (2020) · Advanced Materials · doi:10.1002/adma.202002168 · Cited by 394
Metadata
- Authors
- Xu, Z.-L., Lin, S., Onofrio, N., Zhou, L., Shi, F., Lu, W., Kang, K., Zhang, Q., & Lau, S. P.
- Venue
- Nature Communications
- Published
- 2018-10-09
- Volume
- 9
- Issue
- 1
- Pages
- 4164-4164
- ISSN
- 2041-1723 (ISSN-L)
- OpenAlex
- W2894627180
- Cited by
- 391
- References
- 62
- FWCI
- 18.82
- Type
- journal article
- Language
- en
- Open access
- gold
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- Xu, Z.-L., Lin, S., Onofrio, N., Zhou, L., Shi, F., Lu, W., Kang, K., Zhang, Q., & Lau, S. P. (2018). Exceptional catalytic effects of black phosphorus quantum dots in shuttling-free lithium sulfur batteries. Nature Communications. https://doi.org/10.1038/s41467-018-06629-9
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