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  Novel stable 3D stainless steel-based electrodes for efficient water splitting

Zhang, H., de Souza e Silva, J. M., Lu, X., de Oliveira, C. S., Cui, B., Li, X., et al. (2019). Novel stable 3D stainless steel-based electrodes for efficient water splitting. Advanced Materials Interfaces, 6(18): 1900774. doi:10.1002/admi.201900774.

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Item Permalink: https://hdl.handle.net/21.11116/0000-0009-1259-F Version Permalink: https://hdl.handle.net/21.11116/0000-0009-4F6F-4
Genre: Journal Article

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https://doi.org/10.1002/admi.201900774 (Publisher version)
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 Creators:
Zhang, Haojie1, Author
de Souza e Silva, Juliana Ma1, Author
Lu, Xubin1, Author
de Oliveira, Cristine S1, Author
Cui, Bin2, Author
Li, Xiaopeng1, Author
Lin, Chao1, Author
Schweizer, Stefan L.1, Author
Maijenburg, A. Wouter1, Author
Bron, Michael1, Author
Wehrspohn, Ralf B.1, Author
Affiliations:
1External Organizations, ou_persistent22              
2Nano-Systems from Ions, Spins and Electrons, Max Planck Institute of Microstructure Physics, Max Planck Society, Weinberg 2, 06120 Halle, DE, ou_3287476              

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 Abstract: The stability of electrocatalysts grown on substrates is a significant challenge for the construction of 3-dimensional (3D) stainless-steel (SS)-based electrodes for highly efficient water splitting. This paper presents an efficient and universal process to enhance the interfacial interaction between SS and highly active electrocatalysts for the preparation of 3D electrodes through the formation of an interfacial network of carbon nanotubes (CNTs) on the SS. Nanoscale X-ray computed tomography and focused ion beam are used to visualize the interface between CNTs and SS, and 3D structure of CNT/SS electrodes. The strongly interconnected CNTs network increases the surface area of the SS support that benefits the modification of highly active electrocatalysts and also serves as an electron/charge-conductive highway between electrocatalysts and support. The electrocatalysts on CNT/SS further improve hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) performances, respectively, of the 3D electrodes. While compared to the SS-based electrodes reported recently, Pt/OxCNT/SS shows the best HER activity over wide pH range and RuO2/OxCNT/SS exhibits a comparable OER performance in neutral and alkaline electrolyte. An efficient approach is reported to combine highly active electrocatalysts with SS for the preparation of active and stable 3D electrodes that can be further explored in various areas.

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 Dates: 2019-07-24
 Publication Status: Published online
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 Identifiers: BibTex Citekey: P13785
DOI: 10.1002/admi.201900774
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Title: Advanced Materials Interfaces
  Abbreviation : Adv. Mater. Interfaces
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 6 (18) Sequence Number: 1900774 Start / End Page: - Identifier: ISSN: 2196-7350
CoNE: https://pure.mpg.de/cone/journals/resource/2196-7350