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Technical data Generation of hydrogen and oxygen using a PEM electrolyserArticle no: P9516100 ![]()
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Principle The PEM electrolyser consists of a thin, proton-conducting polymer electrolyte membrane (PEM), the two sides of which are each coated with a catalysing material. These coatings form the anode and the cathode. The theoretical decomposition voltage of water is 1.23 V. This voltage is higher in practice, however, because of losses in the electrolyser. It is about 1.55 V in the electrolyser used here. When this voltage is exceeded, water molecules are decomposed and hydrogen and oxygen are generated. Benefits
Tasks How can hydrogen be generated from water? Observe what happens when a voltage is applied to the PEM electrolyser.
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PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
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Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com


