Facile Nanostructured Composite Synthesis of Selenium and Molybdenum Chalcogenides/Carbon Nanotubes for Li-Ion Batteries
- Authors
- Bose, Ranjith; Kim, Jaemin; Kim, Tae-Hyun; Koh, Beomsoo; Go, Nakgyu; Mun, Junyoung; Yi, Sung Chul
- Issue Date
- Nov-2017
- Publisher
- WILEY-V C H VERLAG GMBH
- Keywords
- Rechargeable lithium-ion batteries; Hydrothermal method; Se-doped MoS2; Carbon nanotube; Hybrid structure
- Citation
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY, v.38, no.11, pp.1347 - 1352
- Indexed
- SCIE
SCOPUS
KCI
- Journal Title
- BULLETIN OF THE KOREAN CHEMICAL SOCIETY
- Volume
- 38
- Number
- 11
- Start Page
- 1347
- End Page
- 1352
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/151263
- DOI
- 10.1002/bkcs.11300
- ISSN
- 0253-2964
- Abstract
- For lithium-ion batteries (LIBs), MoS2, which has conversion reaction pathways that can accommodate lithium ions during charge, is a very special inorganic material that has a two-dimensional planar structure similar to graphite. For reliable performance of high-energy LIBs, Se-molybdenum chalcogenides with sulfide and selenide (Se-MC) were prepared via the incorporation of a carbon nanotube (CNT) conducting matrix to solve the crucial limitations of MoS2, which include poor electronic conductivity and severe volume changes during cycling. For the preparation of Se-MC/CNT, a facile, one-pot synthetic method using molybdic acid, selenium dioxide, and thioacetamide, which are the precursors for molybdenum, selenide, and sulfide, respectively, and CNT was developed. A detailed investigation of the surfaces and crystal structures of the prepared samples was conducted using transmission electron microscopy and X-ray photoelectron spectroscopy analyses. Furthermore, LIBs containing the Se-MC/CNT exhibited a significantly extended cycle life and an improved rate capability that revealed the synergetic effect of the CNTs and selenide for controlling the morphology.
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