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Fadillah L, Kowalski D, Vincent M, Zhu C, Kitano S, Aoki Y, Habazaki H. Lithiation of Anodic Magnetite-Hematite Nanotubes Formed on Iron. ACS Appl Mater Interfaces 2023. [PMID: 37931031 DOI: 10.1021/acsami.3c12233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2023]
Abstract
Electrochemically active iron oxide nanotubes formed by anodization are of high interest as battery components in various battery systems due to their 1D geometry, offering high volume expansion tolerance and applications without the use of binders and conductive additives. This work takes a step forward toward understanding lithium-ion storage in 1D nanotubes through the analysis of differential capacity plots d(Q - Q0)·dE-1 supported by in situ Raman spectroscopy observations. The iron oxide nanotubes were synthesized by anodizing polycrystalline iron and subsequently modified by thermal treatment in order to control the degree of crystallinity and the ratio of hematite (Fe2O3) to magnetite (Fe3O4). The electrochemical fingerprints revealed a quasi-reversible lithiation/delithiation process through Li2O formation. Significant improvement in electrochemical performance was found to be related to the high degree of crystallinity and the increase of the hematite (Fe2O3) to magnetite (Fe3O4) ratio. In situ mechanistic studies revealed a reversible reduction of iron oxide to metallic iron simultaneously with Li2O formation.
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Affiliation(s)
- Laras Fadillah
- Faculty of Engineering, Hokkaido University, Kita-Ku Kita 13, Jo Nishi 8, Sapporo 060-8628, Hokkaido, Japan
| | - Damian Kowalski
- Faculty of Engineering, Hokkaido University, Kita-Ku Kita 13, Jo Nishi 8, Sapporo 060-8628, Hokkaido, Japan
- Biological and Chemical Research Centre, University of Warsaw, Zwirki i Wigury 101, Warsaw 02-089, Poland
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Mewin Vincent
- Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw 02-093, Poland
| | - Chunyu Zhu
- School of Low-carbon Energy and Power Engineering, China University of Mining and Technology, Xuzhou 221116, China
| | - Sho Kitano
- Faculty of Engineering, Hokkaido University, Kita-Ku Kita 13, Jo Nishi 8, Sapporo 060-8628, Hokkaido, Japan
| | - Yoshitaka Aoki
- Faculty of Engineering, Hokkaido University, Kita-Ku Kita 13, Jo Nishi 8, Sapporo 060-8628, Hokkaido, Japan
| | - Hiroki Habazaki
- Faculty of Engineering, Hokkaido University, Kita-Ku Kita 13, Jo Nishi 8, Sapporo 060-8628, Hokkaido, Japan
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Fadillah L, Kowalski D, Kitano S, Zhu C, Aoki Y, Habazaki H. Highly enhanced photocatalytic activity of nanotubular Fe2O3/Fe2WO6 nanocomposite film formed by anodizing FeW alloy. Electrochem commun 2023. [DOI: 10.1016/j.elecom.2023.107460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2023] Open
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Fadillah L, Takase K, Kobayashi H, Turczyniak-Surdacka S, Strawski M, Kowalski D, Zhu C, Aoki Y, Habazaki H. The role of tungsten species in the transition of anodic nanopores to nanotubes formed on iron alloyed with tungsten. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.03.206] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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