Highly active carbon supported Pd cathode catalysts for direct formic acid fuel cells

A. Mikolajczuk-Zychora , A. Borodziński , P. Kędzierzawski , B. Mierzwa , Marta Mazurkiewicz-Pawlicka , Leszek Stobiński , Ewelina Ciecierska , A. Zimoch , M. Opałło


One of the drawbacks of low-temperature fuel cells is high price of platinum-based catalysts used for the electroreduction of oxygen at the cathode of the fuel cell. The aim of this work is to develop the palladium catalyst that will replace commonly used platinum cathode catalysts. A series of palladium catalysts for oxygen reduction reaction (ORR) were prepared and tested on the cathode of Direct Formic Acid Fuel Cell (DFAFC). Palladium nanoparticles were deposited on the carbon black (Vulcan) and on multiwall carbon nanotubes (MWCNTs) surface by reduction of palladium(II) acetate dissolved in ethanol. Hydrazine was used as a reducing agent. The effect of functionalization of the carbon supports on the catalysts physicochemical properties and the ORR catalytic activity on the cathode of DFAFC was studied. The supports were functionalized by treatment in nitric acid for 4 h at 80 °C. The structure of the prepared catalysts has been characterized by thermogravimetric analysis (TGA), X-ray diffraction (XRD), transmission electron microscope (TEM) and cyclic voltammetry (CV). Hydrophilicity of the catalytic layers was determined by measuring contact angles of water droplets. The performance of the prepared catalysts has been compared with that of the commercial 20 wt.% Pt/C (Premetek) catalyst. The maximum power density obtained for the best palladium catalyst, deposited on the surface of functionalized carbon black, is the same as that for the commercial Pt/C (Premetek). Palladium is cheaper than platinum, therefore the developed cathode catalyst is promising for future applications.
Author A. Mikolajczuk-Zychora - [Institute of Physical Chemistry of the Polish Academy of Sciences]
A. Mikolajczuk-Zychora,,
, A. Borodziński - [Institute of Physical Chemistry of the Polish Academy of Sciences]
A. Borodziński,,
, P. Kędzierzawski - [Institute of Physical Chemistry of the Polish Academy of Sciences]
P. Kędzierzawski,,
, B. Mierzwa - [Institute of Physical Chemistry of the Polish Academy of Sciences]
B. Mierzwa,,
, Marta Mazurkiewicz-Pawlicka (FCPE / GL) - The Faculty of Materials Science and Engineering, WUT (WIM)
Marta Mazurkiewicz-Pawlicka,,
- WUT Grafen Laboratory
, Leszek Stobiński (FCPE / GL) - [Institute of Physical Chemistry Polish Academy of Sciences (IChF PAN) [Polish Academy of Sciences (PAN)]]
Leszek Stobiński,,
- WUT Grafen Laboratory
- Instytut Chemii Fizycznej Polskiej Akademii Nauk
, Ewelina Ciecierska (FMSE / DMD)
Ewelina Ciecierska,,
- Division of Materials Design
, A. Zimoch - [Institute of Physical Chemistry of the Polish Academy of Sciences]
A. Zimoch,,
, M. Opałło - [Institute of Physical Chemistry of the Polish Academy of Sciences]
M. Opałło,,
Journal seriesApplied Surface Science, ISSN 0169-4332
Issue year2016
Publication size in sheets0.5
Conference12th International Symposium on Electrochemical/ Chemical Reactivity of New Materials - „Surface Science - key to understand advanced materials” (ECRNM 12), 15-09-2015 - 18-09-2015, Warszawa, Polska
Keywords in Englishcathode, palladium, direct formic acid fuel cells, electro-reduction of oxygen
ASJC Classification2508 Surfaces, Coatings and Films
URL http://ac.els-cdn.com/S0169433216302343/1-s2.0-S0169433216302343-main.pdf?_tid=18d65800-c056-11e6-b10e-00000aab0f26&acdnat=1481538850_cae5e472d407a594fc61b0fe9a9f7542
Languageen angielski
Mikolajczuk-Zychora A. (i in.) - Highly active carbon....pdf 1.87 MB
Score (nominal)35
Score sourcejournalList
ScoreMinisterial score = 35.0, 04-06-2020, ArticleFromJournalAndMatConfByConferenceseries
Ministerial score (2013-2016) = 35.0, 04-06-2020, ArticleFromJournalAndMatConfByConferenceseries
Publication indicators Scopus Citations = 15; WoS Citations = 18; Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.209; WoS Impact Factor: 2016 = 3.387 (2) - 2016=3.184 (5)
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