TY  - JOUR
AU  - Karaca, Ali
AU  - Galkina, Irina
AU  - Sohn, Yoo Jung
AU  - Wippermann, Klaus
AU  - Scheepers, Fabian
AU  - Glüsen, Andreas
AU  - Shviro, Meital
AU  - Müller, Martin
AU  - Carmo, Marcelo
AU  - Stolten, Detlef
TI  - Self-Standing, Ultrasonic Spray-Deposited Membranes for Fuel Cells
JO  - Membranes
VL  - 13
IS  - 5
SN  - 2077-0375
CY  - Basel
PB  - MDPI
M1  - FZJ-2023-02351
SP  - 522 -
PY  - 2023
AB  - The polymer electrolyte membrane and its contact with electrodes has a significant effect on the performance of fuel and electrolysis cells but the choice of commercially available membranes is limited. In this study, membranes for direct methanol fuel cells (DMFCs) were made by ultrasonic spray deposition from commercial Nafion solution; the effect of the drying temperature and presence of high boiling solvents on the membrane properties was then analyzed. When choosing suitable conditions, membranes with similar conductivity, water uptake, and higher crystallinity than comparable commercial membranes can be obtained. These show similar or superior performance in DMFC operation compared to commercial Nafion 115. Furthermore, they exhibit low permeability for hydrogen, which makes them attractive for electrolysis or hydrogen fuel cells. The findings from our work will allow for the adjustment of membrane properties to the specific requirements of fuel cells or water electrolysis, as well as the inclusion of additional functional components for composite membranes.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000997249200001
DO  - DOI:10.3390/membranes13050522
UR  - https://juser.fz-juelich.de/record/1008451
ER  -