Strongly Coupled Tin(IV) Sulfide-MultiWalled Carbon Nanotube Hybrid Composites and Their Enhanced Thermoelectric Properties
- Authors
- Park, Dabin; Kim, Minsu; Kim, Jooheon
- Issue Date
- Feb-2022
- Publisher
- American Chemical Society
- Citation
- Inorganic Chemistry, v.61, no.8, pp 3723 - 3729
- Pages
- 7
- Journal Title
- Inorganic Chemistry
- Volume
- 61
- Number
- 8
- Start Page
- 3723
- End Page
- 3729
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/55388
- DOI
- 10.1021/acs.inorgchem.1c03953
- ISSN
- 0020-1669
1520-510X
- Abstract
- Herein, tin(IV) sulfide (SnS2) and multiwalled carbon nanotube (MWCNT) composites are fabricated via a simple solution-mixing method in a hydrothermal reactor. SnS2 is closely coupled to the MWCNT surface, thus forming a coaxial nanostructure. Examination by X-ray photoelectron spectroscopy and scanning transmission electron microscopy indicates that the strong interface between SnS2 and the MWCNTs in the composite material is due to the formation of Sn-O and Sn-S bonds. In addition, an examination of the temperature-dependent thermoelectric (TE) properties demonstrates that the SnS2-MWCNT hybrid composite with 3 wt % MWCNTs exhibits the maximum power factor of ∼91.34 μW/(m·K2) at 500 K, which is ∼50 times larger than that of the pristine SnS2. These results highlight the fabrication and enhanced TE properties of hybrid composites via the coupling of SnS2 and MWCNTs. © 2022 American Chemical Society.
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