TY - JOUR
T1 - Photothermal hydrogen sensor
T2 - The technique, experimental process, and physicochemical analysis
AU - Demetriou, Chrysanthi
AU - Nestoros, Marios
AU - Christofides, Constantinos
PY - 2008/8
Y1 - 2008/8
N2 - The kinetics of hydrogen adsorption and desorption on palladium thin films was studied via photomodulated thermoreflectance measurements. The subsequent analysis based on a Langmuirian isothermal model supports dissociative adsorption of hydrogen on palladium followed by molecular desorption. Furthermore, the rate constants of adsorption and desorption were determined and their values are discussed. The response and recovery times of the sensor were measured and their dependence on hydrogen concentration is also explored and discussed.
AB - The kinetics of hydrogen adsorption and desorption on palladium thin films was studied via photomodulated thermoreflectance measurements. The subsequent analysis based on a Langmuirian isothermal model supports dissociative adsorption of hydrogen on palladium followed by molecular desorption. Furthermore, the rate constants of adsorption and desorption were determined and their values are discussed. The response and recovery times of the sensor were measured and their dependence on hydrogen concentration is also explored and discussed.
UR - http://www.scopus.com/inward/record.url?scp=48349088585&partnerID=8YFLogxK
U2 - 10.1007/s00339-008-4596-x
DO - 10.1007/s00339-008-4596-x
M3 - Article
AN - SCOPUS:48349088585
SN - 0947-8396
VL - 92
SP - 651
EP - 658
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 3
ER -