Matthias Arenz
University of Bern
222 Papers
1K Citations
Matthias Arenz is an academic researcher from University of Bern. The author has contributed to research in topics: Catalysis & Nanoparticle. The author has an hindex of 48, co-authored 197 publications. Previous affiliations of Matthias Arenz include University of California, Berkeley & University of Copenhagen.
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Papers
The influence of electrochemical annealing in CO saturated solution on the catalytic activity of Pt nanoparticles
TL;DR: In this article, the influence of different treatment procedures on the catalytic activity of carbon supported Pt nanoparticles is probed using transmission electron microscopy (IL-TEM) and rotating disk electrode (RDE) measurements.
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On the oxygen reduction reaction in phosphoric acid electrolyte: Evidence of significantly increased inhibition at steady state conditions
TL;DR: In this article, the oxygen reduction reaction (ORR) in half-cell measurements employing different electrolytes was investigated and it was found that the ORR inhibition at the platinum − phosphoric acid electrolyte interface is a relative slow, time dependent process.
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Stabilizing Catalytically Active Nanoparticles by Ligand Linking: Toward Three-Dimensional Networks with High Catalytic Surface Area
Eva Morsbach,Jozsef Speder,Matthias Arenz,E. Brauns,Walter Lang,Sebastian Kunz,Marcus Bäumer +6 more
TL;DR: The stabilizing effect of bifunctional ligands serves as an alternative to the use of inorganic support materials and enables for catalytic applications of ligand-linked NP networks.
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Teaching old precursors new tricks: Fast room temperature synthesis of surfactant-free colloidal platinum nanoparticles
Jonathan Quinson,Jette K. Mathiesen,Johanna Schröder,Alexandra Dworzak,Francesco Bizzotto,Alessandro Zana,Søren Bredmose Simonsen,L. Theil Kuhn,Mehtap Oezaslan,Kirsten M. Ø. Jensen,Matthias Arenz +10 more
TL;DR: X-ray absorption spectroscopy studies and UV-vis measurements show that solutions of H2PtCl6 in methanol age and are reduced to Pt(II) species over time and this species are ideal precursors to significantly reduce the induction period typically observed in colloidal Pt nanoparticle syntheses.
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In‐situ Characterization of Metal/Electrolyte Interfaces: Sulfate Adsorption on Cu(111)
TL;DR: In this article, the formation of the well-known Moire-like structure upon adsorption of sulfate on the Cu(111) surface was studied by means of in-situ electrochemical scanning tunneling microscopy (EC-STM) and IRAS.
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