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Erschienen in:
2018 | OriginalPaper | Buchkapitel
2. Electrolysis—Fundamental Technologies, Requirements and Current Status
verfasst von : Alexander Tremel
Erschienen in: Electricity-based Fuels
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Abstract
The first and most important conversion step for the production of electricity-based fuels is the electrolysis of water to produce hydrogen. Alkaline electrolyzers have dominated the market and account for almost all installed electrolysis capacity worldwide. However, Proton-Exchange-Membrane (PEM) and solid oxide electrolyzers have a much higher potential for future cost reduction and efficiency improvements. PEM electrolyzers are particularly interesting as they enable the highest operational range to directly follow renewable power generation profiles.