02/12/2024

InnoCap - Innovative capillary electrolysis for high-efficiency production of green hydrogen

Development of a new, high-efficiency technology for the production of green hydrogen.

Project details

Duration 1 July 2023 - 30 June 2024
Research theme Energy & Resources
Project leader Prof. Ulrich Ulmer
Institute for Applied Hydrogen Research, Electrochemical and Thermochemical Energy Systems (H2OHM)
Faculty of Process Engineering
Funding provided by Staedtler Foundation

Description

Climate change is seen as a global existential threat for our current civilisation. It is primarily driven by the use of fossil fuels which, when combusted, emit large quantities of CO2. Renewable, so-called “green” hydrogen (H2) is a significant component of a future CO2-neutral economy. Technically, green hydrogen is produced in a process of electrolysis with water and green electricity. The resulting waste heat remains unused due to the low temperature levels. This means that a large part of the green electricity is “lost”. A new type of electrolysis, called “capillary electrolysis” was recently presented in the literature. Under laboratory conditions, this method has a measured degree of efficiency of up to 95%.

The aim of the project is to develop a new type of electrolysis where the efficiency level of hydrogen production is significantly increased. The exploitation of the waste heat is also significantly improved due to the higher temperature level in comparison to established, commercial electrolysis methods.

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