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  Surface states in bulk single crystal of topological semimetal Co3Sn2S2 toward water oxidation

Li, G., Xu, Q., Shi, W., Fu, C., Jiao, L., Kamminga, M. E., et al. (2019). Surface states in bulk single crystal of topological semimetal Co3Sn2S2 toward water oxidation. Science Advances, 5(8): eaaw9867, pp. 1-8. doi:10.1126/sciadv.aaw9867.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0004-8C97-4 Version Permalink: http://hdl.handle.net/21.11116/0000-0004-8CA4-5
Genre: Journal Article

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 Creators:
Li, Guowei1, Author              
Xu, Qiunan1, Author              
Shi, Wujun2, Author
Fu, Chenguang1, Author              
Jiao, Lin3, Author              
Kamminga, Machteld E.2, Author
Yu, Mingquan2, Author
Tüysüz, Harun2, Author
Kumar, Nitesh1, Author              
Süß, Vicky1, Author              
Saha, Rana2, Author
Srivastava, Abhay K.2, Author
Wirth, Steffen4, Author              
Auffermann, Gudrun5, Author              
Gooth, Johannes1, Author              
Parkin, Stuart2, Author
Sun, Yan1, Author              
Liu, Enke2, Author
Felser, Claudia6, Author              
Affiliations:
1Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863425              
2External Organizations, ou_persistent22              
3Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863445              
4Steffen Wirth, Physics of Correlated Matter, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863460              
5Gudrun Auffermann, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863432              
6Claudia Felser, Inorganic Chemistry, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863429              

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 Abstract: The band inversion in topological phase matters bring exotic physical properties such as the topologically protected surface states (TSS). They strongly influence the surface electronic structures of the materials and could serve as a good platform to gain insight into the surface reactions. Here we synthesized high-quality bulk single crystals of Co3Sn2S2 that naturally hosts the band structure of a topological semimetal. This guarantees the existence of robust TSS from the Co atoms. Co3Sn2S2 crystals expose their Kagome lattice that constructed by Co atoms and have high electrical conductivity. They serves as catalytic centers for oxygen evolution process (OER), making bonding and electron transfer more efficient due to the partially filled orbital. The bulk single crystal exhibits outstanding OER catalytic performance, although the surface area is much smaller than that of Co-based nanostructured catalysts. Our findings emphasize the importance of tailoring TSS for the rational design of high-activity electrocatalysts.

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Language(s): eng - English
 Dates: 2019-08-162019-08-16
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: DOI: 10.1126/sciadv.aaw9867
 Degree: -

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Title: Science Advances
  Other : Sci. Adv.
Source Genre: Journal
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Publ. Info: Washington : AAAS
Pages: - Volume / Issue: 5 (8) Sequence Number: eaaw9867 Start / End Page: 1 - 8 Identifier: ISSN: 2375-2548
CoNE: https://pure.mpg.de/cone/journals/resource/2375-2548