Hydrogen pump-type impurity sensors for hydrogen fuels
Abstract
A hydrogen pump-type hydrogen sensor cell has been developed for continuously detecting a trace amount of impurities contained in hydrogen fuels, by using the impurity poisoning effect of PEFC-type electrochemical cells. The impurity-sensitive sensor cell was produced by extremely reducing Pt catalyst loading in order to detect even a small amount of impurities. This type of sensors with the stable baseline can detect major hydrogen fuel impurities, CO, H2S, and NH3, with the ppm-level detection limit.
- Publication:
-
International Journal of Hydrogen Energy
- Pub Date:
- February 2017
- DOI:
- 10.1016/j.ijhydene.2016.12.066
- Bibcode:
- 2017IJHE...42.3281N
- Keywords:
-
- Sensor;
- Hydrogen pump;
- Impurity;
- CO;
- H<SUB loc="post">2</SUB>S;
- NH<SUB loc="post">3</SUB>