palladium black
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Membranes ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 355
Author(s):  
Adrianna Nogalska ◽  
Andreu Bonet Navarro ◽  
Ricard Garcia-Valls

Membrane electrode assemblies (MEAs) with palladium catalysts were successfully prepared by using a home-made manual pressing system with Nafion glue application that contributed to a decrease of additional energy consumption. The catalyst coated membranes were prepared with supported palladium on activated carbon (PdC) and unsupported palladium black (PdB) for comparison. The performance of passive, air breathing, functioning under ambient conditions and with low concentration (1 M) formate/formic acid fuel cell was evaluated. Based on polarization curves, the best result was obtained with carbon supported catalyst and HCOOK fuel, achieving 21.01 mW/mgPd. Still, constant current discharge with PdC showed an energy generation efficiency of 14% with HCOOH over 3% with HCOOK caused by lower potassium ion conductivity and its permeability through the proton exchange membrane. The faradic efficiency of conversion in the cell is equal to the overall energy efficiency and makes the cell self-sufficient.


2007 ◽  
Vol 36 (3) ◽  
pp. 144-151 ◽  
Author(s):  
Libor Červeny ◽  
Ivo Paseka ◽  
Stanislav Tobola ◽  
Vlastimil Ružička
Keyword(s):  

ChemInform ◽  
2007 ◽  
Vol 38 (3) ◽  
Author(s):  
V. Slavinska ◽  
Dz. Sile ◽  
G. Rozenthal ◽  
G. Maurops ◽  
J. Popelis ◽  
...  
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Author(s):  
Tse-Lok Ho ◽  
Mary Fieser ◽  
Louis Fieser
Keyword(s):  

2006 ◽  
Vol 42 (5) ◽  
pp. 570-573 ◽  
Author(s):  
V. Slavinska ◽  
Dz. Sile ◽  
G. Rozenthal ◽  
G. Maurops ◽  
J. Popelis ◽  
...  
Keyword(s):  

ChemInform ◽  
2005 ◽  
Vol 36 (44) ◽  
Author(s):  
Damien Belotti ◽  
Guillaume Cantagrel ◽  
Catherine Combellas ◽  
Janine Cossy ◽  
Frederic Kanoufi ◽  
...  

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