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PSI_Magazin_02_2017.pdf

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Our Goals

On a global scale, sustainability requires the closing of all materials cycles. A living earth in which circular flows of matter are sustained, requires a contiuous influx of energies driving these cycles. As the sun is the only inexhaustible source of energy on a human time scale, sustainable energy development must aim at utilizing renewable energies (which mostly are derived from solar energy), while at the same time minimizing the production of waste and the use of non-renewable resources.
•Energy and Climate

Enabling the use of Thin Membranes in Water Electrolyzers using a Recombination Catalyst

The conversion efficiency for green hydrogen production in a polymer electrolyte water electrolyzer (PEWE) is strongly influenced by the ohmic cell resistance and therefore the thickness of the membrane used. The use of thin membranes (~50 micron or below) is limited by gas crossover of H2 and O2, which can lead to the formation of explosive gas mixtures. The incorporation of a recombination catalyst provides remedy and allows a more dynamic operating mode.