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Nano Research

Article Title

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

Authors

Tomasz Szatkowski, Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Poznan 60965, Poland
Kacper Kopczyński, Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan 60965, Poland
Mykhailo Motylenko, Institute of Materials Science, TU Bergakademie Freiberg, Freiberg 09599, Germany
Horst Borrmann, Max Planck Institute for Chemical Physics of Solids, Dresden 01187, Germany
Beata Mania, Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Poznan 60965, Poland
Magorzata Gra, Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan 60965, Poland
Grzegorz Lota, Institute of Chemistry and Technical Electrochemistry, Poznan University of Technology, Poznan 60965, Poland
Vasilii V. Bazhenov, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany European X-Ray Free-Electron Laser Facility (XFEL) GmbH, Schenefeld 22869, Germany
David Rafaja, Institute of Materials Science, TU Bergakademie Freiberg, Freiberg 09599, Germany
Friedrich Roth, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany
Juliane Weise, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany
Enrico Langer, Institute of Semiconductors and Microsystems, Polymere Mikrosysteme, TU Dresden, Dresden 01062, Germany
Marcin Wysokowski, Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Poznan 60965, Poland
Sonia ótowska-Aksamitowska, Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Poznan 60965, Poland
Iaroslav Petrenko, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany
Serguei L. Molodtsov, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany European X-Ray Free-Electron Laser Facility (XFEL) GmbH, Schenefeld 22869, Germany Saint-Petersburg National Research University of Information Technologies, Mechanics and Optics, ITMO University, St. Petersburg 197101, Russia
Jana Hubálková, Institute of Ceramic, Glass and Constructions Materials, TU Bergakademie, Freiberg 09599, Germany
Christos G. Aneziris, Institute of Ceramic, Glass and Constructions Materials, TU Bergakademie, Freiberg 09599, Germany
Yvonne Joseph, Institute of Electronics and Sensor Materials, TU Bergakademie Freiberg, Freiberg 09599, Germany
Allison L. Stelling, Department of Biochemistry, Duke University Medical School, Durham, North Carolina 27708, USA
Hermann Ehrlich, Institute of Experimental Physics, TU Bergakademie Freiberg, Freiberg 09599, Germany
Teofil Jesionowski, Institute of Chemical Technology and Engineering, Faculty of Chemical Technology, Poznan University of Technology, Poznan 60965, Poland

Keywords

nanostructured composite, extreme biomimetics, spongin scaffold, manganese oxide, electrochemistry, supercapacitor

Abstract

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 °C with exclusion of oxygen) and manganese oxide with a defined nanoscale structure under 150 °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.

Graphical Abstract

Publisher

Tsinghua University Press

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