Results 21 to 30 of about 63,913 (348)

Impact of catalyst layer morphology on the operation of high temperature PEM fuel cells

Journal of Power Sources Advances, 2021
Electrochemical impedance spectroscopy (EIS) is a well-established method to analyze a polymer electrolyte membrane fuel cell (PEMFC). However, without further data processing, the impedance spectrum yields only qualitative insight into the mechanism and
N. Bevilacqua, T. Asset, M.A. Schmid, H. Markötter, I. Manke, P. Atanassov, R. Zeis   +6 more
doaj   +1 more source

Ion exchange membranes based upon crosslinked sulfonated polyethersulfone for electrochemical applications [PDF]

, 2013
Synthesis and characterization of new ion exchange membranes made from chlorosulfonated polyethersul- fone (SO2Cl-PES) crosslinked by polyaminated crosslinking reagents have been performed.
FAUVARQUE, J.F, MABROUK, Walid, MATOUSSI, F., OGIER, Lionel, SOLLOGOUB, Cyrille, VIDAL, Serge   +5 more
core   +6 more sources

Synthesis and characterization of sulfonated poly(vinylidene fluoride-co-hexafluoropropylene)/sAl2O3 composites as a novel-alternative electrolyte membranes of Nafion

Heliyon, 2020
Fuel cell membrane of Nafion is commonly used as the electrolyte material of fuel cell which has good mechanical properties, but the hydrophobicity reduce its proton conductivity. Thus, the other polymer is used for the electrolyte membrane.
Iman Rahayu, Akmalia Risalatul Umma, Juliandri, Yoga Trianzar Malik, Muhammad Nasir   +4 more
doaj   +1 more source

Observations on the Parameter Estimation Problem of Polymer Electrolyte Membrane Fuel Cell Polarization Curves

Fuel Cells, 2020
The optimal operation of fuel cells in changing environmental and variable load conditions requires mathematical modeling. The electrochemical behavior of polymer electrolyte membrane fuel cells (PEMFC) is commonly described with a semi‐empirical model ...
M. Ohenoja, K. Leiviskä
semanticscholar   +1 more source

The effect of porosity on performance of phosphoric acid doped polybenzimidazole polymer electrolyte membrane fuel cell

EPJ Web of Conferences, 2016
A polybenzimidazole (PBI) based polymer electrolyte fuel cells, which called high temperature polymer electrolyte fuel cells (HT-PEMS), operate at higher temperatures (120-200°C) than conventional PEM fuel cells.
Celik Muhammet, Genc Gamze, Elden Gulsah, Yapici Huseyin   +3 more
doaj   +1 more source

Influence of SO2 Concentration and Relative Humidity on Electrode Poisoning in Polymer Electrolyte Membrane Fuel Cells

Journal of Thermal Science and Technology, 2012
We investigated influences of SO2 concentration and relative humidity in fuel and air streams on anode and cathode poisoning behaviors under open circuit voltage and load operating conditions in polymer electrolyte membrane fuel cells (PEMFCs).
Shohji TSUSHIMA, Keisuke KANEKO, Hiroyuki MORIOKA, Shuichiro HIRAI   +3 more
doaj   +1 more source

Experimental validation of equilibria in fuel cells with dead-ended anodes [PDF]

, 2013
This paper investigates the nitrogen blanketing front during the dead-ended anode (DEA) operation of a PEM fuel cell. Surprisingly the dynamic evolution of nitrogen and water accumulation in the dead-ended anode (DEA) of a PEM fuel cell arrives to a ...
Chen, Jixin, Matsuura, Toyoaki, Siegel, Jason B., Stefanopoulou, Anna G., Yeşilyurt, Serhat   +4 more
core   +1 more source

Numerical thermal analysis of nanofluid flow through the cooling channels of a polymer electrolyte membrane fuel cell filled with metal foam

International Journal of Energy Research, 2020
Improvement in the cooling system performance by making the temperature distribution uniform is an essential part in design of polymer electrolyte membrane fuel cells. In this paper, we proposed to use water‐CuO nanofluid as the coolant fluid and to fill
Mehdi Saeedan, M. Ziaei-Rad, E. Afshari
semanticscholar   +1 more source

Initial conditioning of a polymer electrolyte fuel cells: The relationship between microstructure development and cell performance, investigated by small-angle neutron scattering

Results in Physics, 2019
Real time in-situ observation by small-angle neutron scattering (SANS) was performed to observe the development of microstructure in a polyelectrolyte membrane packed in a polymer electrolyte fuel cell (PEFC) during initial conditioning. By utilizing the
Satoru Ueda, Satoshi Koizumi, Yasuyuki Tsutsumi   +2 more
doaj   +1 more source

Enhanced Performance of the Solid Alkaline Fuel Cell Using PVA-KOH Membrane

International Journal of Electrochemical Science, 2013
Poly(vinyl alcohol) (PVA) is a polyhydroxy polymer, which is very common in practical applications because of its easy preparation and biodegradability. In this work, the alkaline solid polymer electrolyte membrane, based on potassium hydroxide doped PVA,
Dragana L. Zugic, Ivana M. Perovic, Vladimir M. Nikolic, Sladjana Lj. Maslovara, Milica P. Marceta Kaninski   +4 more
doaj   +1 more source