Search Results - "Derr, Igor"

Degradation Phenomena of Bismuth-Modified Felt Electrodes in VRFB Studied by Electrochemical Impedance Spectroscopy by Schneider, Jonathan, Bulczak, Eduard, El-Nagar, Gumaa, Gebhard, Marcus, Kubella, Paul, Schnucklake, Maike, Fetyan, Abdulmonem, Derr, Igor, Roth, Christina

“…The performance of all-V redox flow batteries (VRFB) will decrease when they are exposed to dynamic electrochemical cycling, but also when they are in…”
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Degradation of all-vanadium redox flow batteries (VRFB) investigated by electrochemical impedance and X-ray photoelectron spectroscopy: Part 2 electrochemical degradation by Derr, Igor, Bruns, Michael, Langner, Joachim, Fetyan, Abdulmonem, Melke, Julia, Roth, Christina

“…Electrochemical degradation (ED) of carbon felt electrodes was investigated by cycling of a flow through all-vanadium redox flow battery (VRFB) and conducting…”
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Electroless chemical aging of carbon felt electrodes for the all-vanadium redox flow battery (VRFB) investigated by Electrochemical Impedance and X-ray Photoelectron Spectroscopy by Derr, Igor, Przyrembel, Daniel, Schweer, Jakob, Fetyan, Abdulmonem, Langner, Joachim, Melke, Julia, Weinelt, Martin, Roth, Christina

“…Electroless chemical aging of commercially available, porous carbon felt electrodes for the all-vanadium redox flow battery (VRFB) was investigated by…”
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Electrochemical analysis of the performance loss in all vanadium redox flow batteries using different cut-off voltages by Derr, Igor, Fetyan, Abdulmonem, Schutjajew, Konstantin, Roth, Christina

“…The performance loss observed in vanadium redox flow batteries over time strongly depends on the material and the cycling conditions. We have chosen 1.65V and…”
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A neodymium oxide nanoparticle-doped carbon felt as promising electrode for vanadium redox flow batteries by Fetyan, Abdulmonem, El-Nagar, Gumaa A., Derr, Igor, Kubella, Paul, Dau, Holger, Roth, Christina

“…Neodymium oxide (Nd2O3) nanoparticles were chemically embedded on a state-of-the art carbon felt (CF) by a precipitation method in non-aqueous solution…”
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One-pot synthesis of a high performance chitosan-nickel oxyhydroxide nanocomposite for glucose fuel cell and electro-sensing applications by El-Nagar, Gumaa A., Derr, Igor, Fetyan, Abdulmonem, Roth, Christina

“…[Display omitted] •A novel and cost-efficient Pt-free catalyst of nano-Chitosan-NiOOH is introduced.•Nano-Chitosan-NiOOH exhibits outstanding electrocatalytic…”
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Electrospun Carbon Nanofibers as Alternative Electrode Materials for Vanadium Redox Flow Batteries by Fetyan, Abdulmonem, Derr, Igor, Kayarkatte, Manoj Krishna, Langner, Joachim, Bernsmeier, Denis, Kraehnert, Ralph, Roth, Christina

“…Non‐woven carbon nanofiber networks were produced by electrospinning. Electrospinning is a process that can easily be up‐scaled, producing carbon fibers that…”
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A combined in-situ XAS–DRIFTS study unraveling adsorbate induced changes on the Pt nanoparticle structure by Brieger, Claudia, Melke, Julia, van der Bosch, Nils, Reinholz, Uwe, Riesemeier, Heinrich, Guilherme Buzanich, Ana, Kayarkatte, Manoj Krishna, Derr, Igor, Schökel, Alexander, Roth, Christina

“…[Display omitted] •New in-situ XAS–DRIFTS cell design for improved background correction.•Adsorbate induced reversible changes in the structure of Platinum…”
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