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Cited by 439

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Selenium@Mesoporous Carbon Composite with Superior Lithium and Sodium Storage Capacity

Luo, Chao, Xu, Yunhua, Zhu, Yujie, Liu, Yihang, Zheng, Shiyou, Liu, Ying, Langrock, Alex, Wang, Chunsheng·2013·ACS Nano

Abstract

Selenium-impregnated carbon composites were synthesized by infusing Se into mesoporous carbon at a temperature of 600 °C under vacuum. Ring-structured Se8 was produced and confined in the mesoporous carbon, which acts as an electronic conductive matrix. During the electrochemical process in low-cost LiPF6/EC/DEC electrolyte, low-order polyselenide intermediates formed and were stabilized by mesoporous carbon, which avoided the shuttle reaction of polyselenides. Exceptional electrochemical performance of Se/mesoporous carbon composites was demonstrated in both Li-ion and Na-ion batteries. In lithium-ion batteries, Se8/mesoporous carbon composite cathodes delivered a reversible capacity of 480 mAh g(-1) for 1000 charge/discharge cycles without any capacity loss, while in Na-ion batteries, it provided initial capacity of 485 mAh g(-1) and retained 340 mAh g(-1) after 380 cycles. The Se8/mesoporous carbon composites also showed excellent rate capability. As the current density increased from 0.1 to 5 C, the capacity retained about 46% in Li-ion batteries and 34% in Na-ion batteries.

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Metadata

Authors
Luo, C., Xu, Y., Zhu, Y., Liu, Y., Zheng, S., Liu, Y., Langrock, A., & Wang, C.
Venue
ACS Nano
Published
2013-08-19
Volume
7
Issue
9
Pages
8003-8010
ISSN
  • 1936-0851 (ISSN-L)
  • 1936-086X
OpenAlex
W2080891030
Cited by
439
References
1
FWCI
23.17
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Selenium@Mesoporous Carbon Composite with Superior Lithium and Sodium Storage Capacity. https://app.cochat.ai/papers/10.1021/nn403108w
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Luo, C., Xu, Y., Zhu, Y., Liu, Y., Zheng, S., Liu, Y., Langrock, A., & Wang, C. (2013). Selenium@Mesoporous Carbon Composite with Superior Lithium and Sodium Storage Capacity. ACS Nano. https://doi.org/10.1021/nn403108w

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