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Synthesis and Electrochemical Performance of Sulfur/Highly Porous Carbon Composites
Abstract
Sulfur/highly porous carbon (HPC) composites were synthesized by thermally treating a mixture of sublimed sulfur and HPC. The microstructure of the HPC and the composite was characterized by transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray diffraction (XRD), and Brunauer−Emmett−Teller (BET) surface area. The specific surface area of HPC reaches up to 1472.9 m 2 /g, which is sharply reduced to 24.4 m 2 /g in the sulfur/HPC composite with 57 wt % sulfur. The electrochemical performance of the composites as cathode materials in organic electrolytes was studied by the galvanostatic method and cyclic voltammetry. The sulfur/HPC composite with 57 wt % sulfur delivers the initial high specific capacity up to 1155 mAh/g and a stable capacity of 745 mAh/g after 84 cycles at the current density of 40 mA/g. In addition, it is demonstrated that the excellent cycling stability of the sulfur/HPC composite can be obtained at different current densities. On the basis of the analysis of the microstructure and electrochemical performance, it is confirmed that HPC can effectively prevent the shuttle behavior of the lithium/sulfur battery.
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Citations
Cited by
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Bruce, P. G., Freunberger, S. A., Hardwick, L. J., & Tarascon, J.-M. (2012) · Nature Materials · doi:10.1038/nmat3191 · Cited by 9,479
Porous electrode materials for lithium-ion batteries–how to prepare them and what makes them special
Vu, A., Qian, Y., & Stein, A. (2012) · Advanced Energy Materials · doi:10.1002/aenm.201200320 · Cited by 719
Multi-electron reaction materials for high energy density batteries
Gao, X.-P., & Yang, H.-X. (2010) · Energy Environ. Sci. · doi:10.1039/b916098a · Cited by 624
Self-citationIn Operando X-ray Diffraction and Transmission X-ray Microscopy of Lithium Sulfur Batteries
Nelson, J., Misra, S., Yang, Y., Jackson, A., Liu, Y., Wang, H., Dai, H., Andrews, J. C., Cui, Y., & Toney, M. F. (2012) · Journal of the American Chemical Society · doi:10.1021/ja2121926 · Cited by 538
Xu, J., Ma, J., Fan, Q., Guo, S., & Dou, S. (2017) · Advanced Materials · doi:10.1002/adma.201606454 · Cited by 319
Microporous carbon nanosheets derived from corncobs for lithium–sulfur batteries
Guo, J., Zhang, J., Jiang, F., Zhao, S., Su, Q., & Du, G. (2015) · Electrochimica Acta · doi:10.1016/j.electacta.2015.07.077 · Cited by 175
Mirzajani, R., Kardani, F., & Ramezani, Z. (2020) · Food Chemistry · doi:10.1016/j.foodchem.2020.126179 · Cited by 153
Metadata
- Authors
- Lai, C., Gao, X. P., Zhang, B., Yan, T. Y., & Zhou, Z.
- Venue
- The Journal of Physical Chemistry C
- Publisher
- American Chemical Society (ACS)
- Published
- 2009-02-20
- Volume
- 113
- Issue
- 11
- Pages
- 4712-4716
- ISSN
- 1932-7447 (ISSN-L)
- 1932-7455
- OpenAlex
- W2083059975
- Cited by
- 265
- References
- 0
- FWCI
- 18.74
- Type
- journal article
- Language
- en
- Open access
- closed
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