F
Folke Johannes Tölle
Researcher at University of Freiburg
Publications - 16
Citations - 1262
Folke Johannes Tölle is an academic researcher from University of Freiburg. The author has contributed to research in topics: Graphene & Graphite oxide. The author has an hindex of 13, co-authored 16 publications receiving 1072 citations.
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Journal ArticleDOI
Fracture toughness and failure mechanism of graphene based epoxy composites
Swetha Chandrasekaran,Narumichi Sato,Folke Johannes Tölle,Rolf Mülhaupt,Bodo Fiedler,Karl Schulte,Karl Schulte +6 more
TL;DR: In this article, the authors investigated the effect of three different types of nano-fillers on fracture toughness and failure mechanism of epoxy-based polymer nano-composites, including thermally reduced graphene oxide (TRGO), graphite nano-platelets (GNP), and multi-wall carbon nano-tubes (MWCNT).
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Emulsifier‐Free Graphene Dispersions with High Graphene Content for Printed Electronics and Freestanding Graphene Films
TL;DR: In this paper, a novel and highly versatile synthetic route for the production of functionalized graphene dispersions in water, acetone, and isopropanol, which exhibit long-term stability and are easy to scale up, is reported.
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Iron Nanoparticles Supported on Chemically‐Derived Graphene: Catalytic Hydrogenation with Magnetic Catalyst Separation
TL;DR: In this paper, the Fe-NP was used as an effective catalyst for the hydrogenation of alkenes and alkynes, which can be easily separated by magnetic decantation.
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Hydrothermally resistant thermally reduced graphene oxide and multi-wall carbon nanotube based epoxy nanocomposites
Olesja Starkova,Swetha Chandrasekaran,Luis A. S. de A. Prado,Folke Johannes Tölle,Rolf Mülhaupt,Karl Schulte +5 more
TL;DR: In this article, the authors investigated the thermally reduced graphene oxide (TRGO) and multi-wall carbon nanotubes (MWCNT) after exposure of samples to hot distilled water and found that the addition of low contents of TRGO and MWCNT greatly reduced the water sorption capacity of the epoxy polymer and improved its resistance to hydrothermal ageing.
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3D Micro-Extrusion of Graphene-based Active Electrodes: Towards High-Rate AC Line Filtering Performance Electrochemical Capacitors
Teressa Nathan-Walleser,Ion-Matei Lazar,Martin Fabritius,Folke Johannes Tölle,Qi Xia,Bernd Bruchmann,Shyam Sundar Venkataraman,Matthias Schwab,Rolf Mülhaupt +8 more
TL;DR: In this article, a facile one-step printing process by 3D micro-extrusion affording binder-free thermally reduced graphene oxide (TRGO) based electrochemical capacitors (ECs) that display high-rate performance is presented.