Alexander Dyck
German Aerospace Center
7 Papers
13 Citations
Alexander Dyck is an academic researcher from German Aerospace Center. The author has contributed to research in topics: Proton exchange membrane fuel cell & Catalysis. The author has an hindex of 3, co-authored 7 publications.
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Papers
Relevant Properties of Carbon Support Materials in Successful Fe-N-C Synthesis for the Oxygen Reduction Reaction: Study of Carbon Blacks and Biomass-Based Carbons.
Julia Hülstede,Julia Hülstede,Dana Schonvogel,Henrike Schmies,Peter Wagner,Frank Schröter,Alexander Dyck,Michael Wark +7 more
TL;DR: In this paper, the impact of two carbon blacks and two activated biomass-based carbons on the Fe-N-C synthesis is investigated and crucial support properties are identified, such as carbon support having low portions of amorphous carbon, moderate surface areas (>800 m2/g), and mesopores result in successful incorporation of Fe and N on an atomic level and improved oxygen reduction reaction (ORR) activity.
13
High temperature polymer electrolyte membrane fuel cell degradation provoked by ammonia as ambient air contaminant
Dana Schonvogel,Julian Büsselmann,Henrike Schmies,Hendrik Langnickel,Peter Wagner,Alexander Dyck +5 more
TL;DR: In this article, the impact of NH3-contaminated air on high temperature polymer electrolyte membrane fuel cells (HT-PEMFCs) was studied during 500h of operation.
13
NO/NO2 Contamination of HT-PEM Fuel Cells – A Degradation Study with Evaluation of Regeneration Strategies
Dana Schonvogel,Julian Büsselmann,Peter Wagner,Alexander Dyck +3 more
- 08 Sep 2020
TL;DR: In this article, the performance changes in dependence of several operational modes after cathode feed contamination using 10 ppm of NO or NO2 were analyzed. NO and NO2 contamination resulted in voltage loss rates greater than 350 µV h-1.
4
Efficient Use of Resources in Energy Converting Applications
Nadine Jacobs,Julian Büsselmann,Steffen Theuring,Marco Zobel,Alexander Dyck +4 more
- 31 Aug 2013
TL;DR: The present work deals with testing procedures based on Fuel Cell Testing and Quality Assurance for Proton Exchange Membrane Fuel Cells (PEM FCs) stacks, where parameters like pressure, temperature, humidification and stoichiometry have been varied to improve the efficiency of the stack.
2
Impact of air contamination by NOx on the performance of high temperature PEM fuel cells
Dana Schonvogel,Julian Büsselmann,Henrike Schmies,Hendrik Langnickel,Peter Wagner,Alexander Dyck +5 more
TL;DR: In this paper, the impact of air impurities like NOx on the cell behavior is not completely understood yet, however, the authors provide systematic investigation during 500h of operation in presence of cathode air containing 10ppm NO or NO2.