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  Extreme biomimetics: A carbonized 3D spongin scaffold as a novel support for nanostructured manganese oxide(IV) and its electrochemical applications

Szatkowski, T., Kopczyński, K., Motylenko, M., Borrmann, H., Mania, B., Graś, M., et al. (2018). Extreme biomimetics: A carbonized 3D spongin scaffold as a novel support for nanostructured manganese oxide(IV) and its electrochemical applications. Nano Research, 11(8), 4199-4214. doi:10.1007/s12274-018-2008-x.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0001-EEF2-2 Version Permalink: http://hdl.handle.net/21.11116/0000-0001-EEF7-D
Genre: Journal Article

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 Creators:
Szatkowski, Tomasz1, Author
Kopczyński, Kacper1, Author
Motylenko, Mykhailo1, Author
Borrmann, Horst2, Author              
Mania, Beata1, Author
Graś, Małgorzata1, Author
Lota, Grzegorz1, Author
Bazhenov, Vasilii V.1, Author
Rafaja, David1, Author
Roth, Friedrich1, Author
Weise, Juliane1, Author
Langer, Enrico1, Author
Wysokowski, Marcin1, Author
Żołtowska-Aksamitowska, Sonia1, Author
Petrenko, Iaroslav1, Author
Molodtsov, Serguei L.1, Author
Hubálková, Jana1, Author
Aneziris, Christos G.1, Author
Joseph, Yvonne1, Author
Stelling, Allison L.1, Author
Ehrlich, Hermann1, AuthorJesionowski, Teofil1, Author more..
Affiliations:
1External Organizations, ou_persistent22              
2Horst Borrmann, Chemical Metal Science, Max Planck Institute for Chemical Physics of Solids, Max Planck Society, ou_1863410              

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 Abstract: Composites containing biological materials with nanostructured architecture have become of great interest in modern materials science, yielding both interesting chemical properties and inspiration for biomimetic research. Herein, we describe the preparation of a novel 3D nanostructured MnO2-based composite developed using a carbonized proteinaceous spongin template by an extreme biomimetics approach. The thermal stability of the spongin-based scaffold facilitated the formation of both carbonized material (at 650 degrees C with exclusion of oxygen) and manganese oxide with a defined nanoscale structure under 150 degrees C. Remarkably, the unique network of spongin fibers was maintained after pyrolysis and hydrothermal processing, yielding a novel porous support. The MnO2-spongin composite shows a bimodal pore distribution, with macropores originating from the spongin network and mesopores from the nanostructured oxidic coating. Interestingly, the composites also showed improved electrochemical properties compared to those of MnO2. Voltammetry cycling demonstrated the good stability of the material over more than 3,000 charging/discharging cycles. Additionally, electrochemical impedance spectroscopy revealed lower charge transfer resistance in the prepared materials. We demonstrate the potential of extreme biomimetics for developing a new generation of nanostructured materials with 3D centimeter-scale architecture for the storage and conversion of energy generated from renewable natural sources.

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Language(s): eng - English
 Dates: 2018-08-012018-08-01
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: -
 Identifiers: ISI: 000440733100022
DOI: 10.1007/s12274-018-2008-x
 Degree: -

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Title: Nano Research
Source Genre: Journal
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Publ. Info: Beijing, China : Tsinghua University Press
Pages: - Volume / Issue: 11 (8) Sequence Number: - Start / End Page: 4199 - 4214 Identifier: ISSN: 1998-0124
CoNE: https://pure.mpg.de/cone/journals/resource/1998-0124