Thermal and chemical activation methods applied to DFAFC anodes prepared by magnetron sputtering

0537675 - FZÚ 2021 RIV US eng J - Journal Article
Bieloshapka, Igor - Jiříček, Petr - Yakovlev, Y. - Hruška, Karel - Tomšík, Elena - Houdková, Jana - Malolepszy, A. - Mazurkiewicz, M. - Lobko, Y. - Lesiak, B.
Thermal and chemical activation methods applied to DFAFC anodes prepared by magnetron sputtering.
International Journal of Hydrogen Energy. Roč. 45, č. 27 (2020), s. 14133-14144. ISSN 0360-3199. E-ISSN 1879-3487
R&D Projects: GA MŠMT(CZ) LM2015088
Institutional support: RVO:68378271 ; RVO:61389013
Keywords : Pd-based catalysts * electro-oxidation reaction * direct formic acid fuel cells (DFAFC) * magnetron sputtering * anode treatment * XPS
OECD category: Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis); Polymer science (UMCH-V)
Impact factor: 5.816, year: 2020
Method of publishing: Limited access
https://doi.org/10.1016/j.ijhydene.2020.03.116

Anodes consisting of Pd and bimetallic PdCu catalysts deposited directly on a carbon cloth by magnetron sputtering have been tested in a direct formic acid fuel cell. Current-voltage measurements showed that a bimetallic Pd-based catalyst temperature-treated to 300° C exhibits the highest catalytic activity. Chemical and structural information from the surface of the catalysts was revealed by X-ray photoelectron spectroscopy (XPS) and by scanning electron microscopy (SEM). Increasing the temperature of the anode together with hydrogen peroxide (H2O2) treatment of the catalyst surface was proposed as an additional treatment method. In this method, the highest catalytic activity was achieved for a monometallic Pd catalyst.
Permanent Link: http://hdl.handle.net/11104/0315538