Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7716585 | International Journal of Hydrogen Energy | 2015 | 7 Pages |
Abstract
Herein a highly selective real-time hydrogen quantification method based on electrochemical oxidation of hydrogen in a mixture of dry or humid gases is presented. This approach gives more reliable data for any area of research dealing with hydrogen with impurities or in a mixture of various gases especially for dynamic processes. The method itself is tested and verified by employing defined amounts of hydrogen to the electrochemical test cell with a mass flow controller. The limit of quantification is 0.30 ml H2 minâ1 and the maximal hydrogen flow investigated in the test cell is 100 ml H2 minâ1. The method is applied for two processes with highly dynamic hydrogen evolution reactions: the steam iron process and the catalytic hydrolysis of borohydride as chemical hydrogen storage compound. In comparison to state-of-the-art methods it is possible to detect hydrogen selectively and in real-time.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Christoph Grimmer, Stephan Nestl, Jan Senn, Viktor Hacker,