Effect of Pt and Pd Additives on the Hydrogen Sensitivity of Semiconductor Sensors and Their Catalytic Activity in Oxidation of Hydrogen

We have studied the effect of small additives of Pt and Pd on the hydrogen sensitivity of semiconductor adsorption sensors based on SnO2 and on the catalytic activity of sensor materials of the same composition in oxidation of hydrogen. We have shown that as the amount of Pt or Pd increases, the cat...

Full description

Saved in:
Bibliographic Details
Published in:Theoretical and experimental chemistry 2005-09, Vol.41 (5), p.318-322
Main Authors: Yatsimirskii, V. K., Maksimovich, N. P., Boldyreva, O. Yu, Nikitina, N. V., Telegeeva, A. G.
Format: Article
Language:English
Subjects:
Additives
Catalysis
Catalytic activity
Hydrogen
Oxidation
Palladium
Platinum
Sensitivity
Sensors
Tin dioxide
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We have studied the effect of small additives of Pt and Pd on the hydrogen sensitivity of semiconductor adsorption sensors based on SnO2 and on the catalytic activity of sensor materials of the same composition in oxidation of hydrogen. We have shown that as the amount of Pt or Pd increases, the catalytic activity increases and the sensitivity of the sensors passes through a maximum. The results obtained are explained taking into account the hydrogen spillover phenomenon.
ISSN:0040-5760
1573-935X
DOI:10.1007/s11237-005-0058-0