StoRIES Infrastructures: FZJ PORCES

PORCES of Forschungszentrum Jülich GmbH (FZJ) will provide access to its equipment for the characterization of porous catalyst/ electrode structures. This facility comprises two unique instruments: TAP and nano-CT and further on SEM, XRD und BET equipment.

State of the art: The design of electrochemically and chemically active reactors and electrolysers as components in storage systems demands an intensive knowledge in engineering and chemistry. Corresponding screening experiments, kinetic reactor set-ups and catalyst characterization applying a bundle of experimental hardware will support the development of synthesis catalysts and electrochemically active materials.

Services currently offered by the infrastructure: LCC provides a reactor system for the Temporal Analysis of Products (TAP). Temporal Analysis of Products (TAP) is an experimental technique for studying the kinetics of physico-chemical interactions between gases and complex solid materials, primarily heterogeneous catalysts. The TAP methodology is based on short pulse-response experiments at low background pressure, which are used to probe different steps in a catalytic process on the surface of a porous material including diffusion, adsorption, surface reactions, and desorption. The Zeiss Versa 420 nano X-ray computer tomograph allows non-destructive imaging of structures and materials in optically non-transparent objects over four size scales, i.e. 500 nm to ~1 mm. This makes it possible e.g. to examine the porous structures of fuel and electrolysis cells ex- and in-situ. Samples up to a maximum size of 10 x 10 x 10 cm can be investigated (depending on x-ray transmission/ absorption).