Institute of Solid State Physics


SS22WS22SS23WS23SS24WS24      Guidelines for Master Students

Novel Approach to measure Fluoride in Fuel Cell Exhaust Water
Mario Steiner
AVL
https://tugraz.webex.com/tugraz/j.php?MTID=md7fb03441eb728c4dbde88ff2a0f3fb2
11:15 - 12:15 Wednesday 18 January 2023 PH 01 150

Fuel cells are a promising technologie so solve the energy problematics of the future and a potential candidate as a new engine technologie in the transport sector. Currently the production costs and their limited lifetime prevents them from wolrdwide application. The fuel cell is prone to chemical degradation involing the decay of the membrane within it. Fluoride is a byproduct of this decay. It is found in the product water of the fuel cell system. Therefore the fluoride concentration correlates 1:1 to the degradation state of the cell. Currently there is no technology on the market to measure the fluoride concentration conitously when running fuel cell tests.
We tried to develop a new device to solve this problematic using a colorimetry approach including a quantitative fluorescence analysis.
The method is established as static measurement method so far, reaching a limit of detection similar to ion-chromatography with significantly faster measuring time.