Poster

Proton exchange membrane (PEM) water electrolysis is a technology for large-scale hydrogen production as a clean and sustainable energy source.[1] The beginning of operation (BOO) of a running electrolyzer is commonly used as a reference to characterize membrane electrode assembly (MEA) materials and to predict the lifetime under reliable operating conditions.[2,3] However, the performance of the PEM electrolytic cell might be inconsistent during the BOO phase, which raises the demand for an initial processing step (conditioning) to activate the MEA. In short-term operation, an improvement of the cell performance was observed for different conditioning procedures, such as acid treatment and MEA hydration in water at elevated temperatures, by increasing the proton conductivity of PEM and ionomer, and reducing the ohmic resistance of the electrolytic cell.[4]The oxygen evolution reaction (OER) at the MEA anode is the rate determining step dominating the overall cell performance [...]

Proton exchange membrane (PEM) water electrolysis is a technology for large-scale hydrogen production.[1,2] The oxygen evolution reaction (OER) at the membrane electrode assembly (MEA) is the rate determining step dominating the overall cell performance. The choice of the OER catalyst and deposition procedure significantly affect the reaction kinetics, chemical stability and electronic conductivity.[3] To maintain a high and long-term consistent cell performance, manufacturing and performance control of the MEA is indispensable.Electrochemical analysis is a powerful tool for MEA evaluation providing information about catalytic activity, kinetics and electrochemically active surface area (ECSA) [...]

The hippocampal formation (HF) plays a pivotal role in different aspects of memory, with its subdivisions having various functional implications. The hippocampus has been parcellated in different ways both in histological and MRI studies [1, 2]. [...]