Materials Map

Discover the materials research landscape. Find experts, partners, networks.

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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Materials Map under construction

The Materials Map is still under development. In its current state, it is only based on one single data source and, thus, incomplete and contains duplicates. We are working on incorporating new open data sources like ORCID to improve the quality and the timeliness of our data. We will update Materials Map as soon as possible and kindly ask for your patience.

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in Cooperation with on an Cooperation-Score of 37%

Topics

Publications (6/6 displayed)

  • 2022Coarse-Grained Refractory Composite Castables Based on Alumina and Niobium7citations
  • 2020Impact of Surface Functionalization on the Intrinsic Properties of the Resulting Fe-N-C Catalysts for Fuel Cell Applications13citations
  • 2015Molecular characterization of dissolved black nitrogen via electrospray ionization Fourier transform ion cyclotron resonance mass spectrometrycitations
  • 2010Cyclic behavior and microstructural stability of ultrafine-grained AA6060 under strain-controlled fatigue9citations
  • 2000Direct wet printing of polumer solutions for high resolution lithographycitations
  • 2000Offset printing of liquid microstructures for high resolution lithography3citations

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Zienert, T.
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Eusterholz, M.
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Hubalkova, J.
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Kraft, B.
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Heilmaier, Martin
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Weidner, A.
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Boll, T.
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Endler, D.
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Günay, G.
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Biermann, H.
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Paul, S.
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Gomez Villa, E.d.
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Co-Authors (by relevance)

  • Zienert, T.
  • Eusterholz, M.
  • Hubalkova, J.
  • Kraft, B.
  • Heilmaier, Martin
  • Weidner, A.
  • Boll, T.
  • Endler, D.
  • Günay, G.
  • Biermann, H.
  • Gehre, P.
  • Aneziris, C.g.
  • Cremers, C.
  • Paul, S.
  • Weidler, N.
  • Gomez Villa, E.d.
  • Jurzinsky, T.
  • Kramm, U.i.
  • Kübler, M.
  • Jaffé, R.
  • Dittmar, T.
  • Niendorf, Thomas
  • Halle, T.
  • Meyer, L.w.
  • Hockauf, K.
  • Troian, Sm
  • Miller, Sm
  • Darhuber, Aa Anton
  • Miller, S.m.
  • Troian, S.m.
OrganizationsLocationPeople

article

Impact of Surface Functionalization on the Intrinsic Properties of the Resulting Fe-N-C Catalysts for Fuel Cell Applications

  • Cremers, C.
  • Paul, S.
  • Weidler, N.
  • Gomez Villa, E.d.
  • Wagner, S.
  • Jurzinsky, T.
  • Kramm, U.i.
  • Kübler, M.
Abstract

Art. 2000433, 13 S. ; Herein, Fe-N-C catalysts are prepared from surface functionalized carbon nanotubes (CNTs) in combination with iron acetate and phenanthroline. An improved performance and structural composition is obtained by surface functionalization of the CNTs with indazole or pyridine. Catalyst composition and morphology are characterized by transmission electron microscopy, N2 sorption, photoelectron spectroscopy, and 57Fe transmission Mössbauer spectroscopy. However, activity and selectivity toward oxygen reduction reaction are determined from rotating ring disc electrode (RRDE) experiments. The durability and stability are evaluated by accelerated stress tests (0.0-1.2 V) and differential electrochemical mass spectroscopy (DEMS), respectively. It is shown that surface functionalization with indazole enables the direct attachment of FeN4 centers to CNTs so that no impurity species are detected and a high activity is achieved, that can be attributed to an improved turnover frequency and higher mass‐based site density. Even more striking is the excellent durability and stability of the realized catalyst. While these trends are well pronounced in RRDE and DEMS, challenges in the preparation of membrane electrode assemblies make the trend not as obvious in fuel cells (FCs). ; 8 ; Nr.9

Topics
  • spectroscopy
  • durability
  • surface
  • functionalization
  • density
  • experiment
  • transmission electron microscopy
  • nanotube
  • iron