The full water electrolyzer cell allows a real-life simulation of the catalyst’s or cell components’ performance. The single cell consists of a single membrane electrode assembly. Compared to the half-cell, multiple additional effects complicate the actual electrochemical analysis, such as electrical connection, mass transport, membrane degradation, and poisoning by the catalyst. The next step is testing in the whole stacks, which consists of several membrane electrode assemblies and are a further step towards industrialization.
It is the best technique for the catalysts that seem to be promising after the half-cell screening and which are well electrochemically understood. It provides a final confirmation that the catalysts actually work and is an absolutely crucial step to take before any conclusions about the applicability of the catalyst in real electrolyzers.
We offer testing of user-provided proton exchange membrane (PEM) or anion exchange membrane (AEM) catalysts in the form of full membrane electrode assemblies (MEA) and catalyst-coated membranes (CCMs). Catalysts in powder form can also be brought and on-site mixed to ink and pressed to the membrane for in-cell measurements. Additionally, various cell components, such as novel AEM/PEM membranes or anode/cathode gas diffusion layers can be compared with commercial parts using referential catalysts.
All testing stations are equipped with a water flow control system.
All the potentiostat are used with the ECLab software and all available techniques.
The most typical techniques for PEM-WE testing:
We are able to measure the effect of different catalysts or cell components. Users are invited to bring them in various forms.
The accepted form of samples brought by user:
When the user brings only a part of the membrane electrode assembly, we are able to provide the missing component/catalyst to complete the system. We are open to measure other specific components upon agreement (novel PEM/AEM membranes with our catalysts etc.). Do not hesitate to contact us.
In our HTC lab, we offer a range of techniques for coating catalysts onto substrates such as membranes, gas diffusion layers (GDLs), etc. Our methods include:
These techniques allow for precise control over catalyst quantity, catalytic surface area, and catalyst distribution. The selection of the most suitable technique depends on factors such as your specific catalyst requirements, desired coating characteristics, amount of catalysts, the properties of the membranes, ionomers and catalyst materials used.