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Investigation of Electrocatalysts Produced by a Novel Thermal Spray Deposition Method

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Hetaba,  Walid
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;

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Schlögl,  Robert
Research Department Schlögl, Max Planck Institute for Chemical Energy Conversion, Max Planck Society;
Inorganic Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Hetaba, W., Klyushin, A. Y., Falling, L. J., Shin, D., Mechler, A. K., Willinger, M.-G., et al. (2020). Investigation of Electrocatalysts Produced by a Novel Thermal Spray Deposition Method. Materials, 13(12): 2746. doi:10.3390/ma13122746.


Cite as: http://hdl.handle.net/21.11116/0000-0007-B333-5
Abstract
Common methods to produce supported catalysts include impregnation, precipitation, and thermal spray techniques. Supported electrocatalysts produced by a novel method for thermal spray deposition were investigated with respect to their structural properties, elemental composition, and electrochemical performance. This was done using electron microscopy, X-ray photoelectron spectroscopy, and cyclic voltammetry. Various shapes and sizes of catalyst particles were found. The materials exhibit different activity towards oxidation and reduction of Fe. The results show that this preparation method enables the selection of particle coverage as well as size and shape of the catalyst material. Due to the great variability of support and catalyst materials accessible with this technique, this approach is a useful extension to other preparation methods for electrocatalysts.