Efficient Pt-C MEA for PEMFC with Low Platinum Content Prepared by Magnetron Sputtering
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F18%3A10385986" target="_blank" >RIV/00216208:11320/18:10385986 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/fuce.201700137" target="_blank" >https://doi.org/10.1002/fuce.201700137</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/fuce.201700137" target="_blank" >10.1002/fuce.201700137</a>
Alternative languages
Result language
angličtina
Original language name
Efficient Pt-C MEA for PEMFC with Low Platinum Content Prepared by Magnetron Sputtering
Original language description
The presented research is focused on improvement of platinum utilization in Pt-C composite catalysts for proton exchange membrane fuel cell (PEMFC) applications. A series of 25nm thick nanostructured Pt-C thin films were deposited on carbon paper gas diffusion layer substrates (GDL; Sigracet 29BC) by a single-step magnetron sputtering method. Total Pt loading in the thin films varied in the range 6.7-9.7 mu g cm(-2) as determined by X-ray photoelectron spectroscopy (XPS). These catalysts were examined for their activity in hydrogen oxidation reaction (HOR) and oxygen reduction reaction (ORR), continuously operating for periods exceeding 24 hours. The dependence of cell output power on Pt concentration and on the working pressure in the cell was examined. Membrane electrode assembly (MEA) with both magnetron sputtered electrodes and a total (anode + cathode) Pt loading 16.7 mu g cm(-2) was also examined during an extended 250-hour durability test. A stable power density 0.73W cm(-2) was achieved with cell pressure of 300 kPa. Apart from reasonably small power fluctuations no long-term efficiency loss has been detected.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10305 - Fluids and plasma physics (including surface physics)
Result continuities
Project
<a href="/en/project/LM2015057" target="_blank" >LM2015057: Surface Physics Laboratory – Materials Science Beamline</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Fuel Cells
ISSN
1615-6846
e-ISSN
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Volume of the periodical
18
Issue of the periodical within the volume
1
Country of publishing house
DE - GERMANY
Number of pages
6
Pages from-to
51-56
UT code for WoS article
000426166800007
EID of the result in the Scopus database
2-s2.0-85041671559