By Topic

Monitoring of hydrogen consumption along a palladium surface by using a scanning light pulse technique

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $31
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Lofdahl, M. ; Laboratory of Applied Physics, Linköping University, S-58183 Linköping, Sweden ; Lundstrom, I.

Your organization might have access to this article on the publisher's site. To check, click on this link: 

The hydrogen concentration over a large palladium surface is studied by using a hydrogen sensitive palladium–oxide–semiconductor device and a scanning light pulse technique. This technique makes it possible to laterally resolve the hydrogen response of the device. Due to the water forming reaction on the catalytic palladium surface, the hydrogen concentration shows a significant decrease in the direction of a gas flow containing a mixture of hydrogen and technical air. A one-dimensional model for the hydrogen consumption in laminar flow is presented and found to compare well to measurements. The results show also that diffusion from regions beside the palladium covered part of the surface affects the response of the device. Furthermore, with the scanning light pulse technique both the local gas concentration and the local sensitivity of the device can be studied and the measurements show that local regions with a deviating sensitivity exist initially. © 1999 American Institute of Physics.

Published in:

Journal of Applied Physics  (Volume:86 ,  Issue: 2 )