摘要
In this paper,palladium-silver (Pd-Ag) system was studied for hydrogen sensing.Nanofilm of Pd-Ag was fabricated on a porous ceramic substrate through a combination of microfabrication techniques.The electric resistance of the zigzag-shaped microstructure was measured toward hydrogen concentration change.The sensing element demonstrates high sensitivity,fast response and fast recovery to hydrogen.The Pd-Ag film was characterized by scanning electron microscopy (SEM) equipped with X probe to correlate its physical and chemical properties to its sensing performance.The present sensor is very promising for room temperature hydrogen leakage detection and related applications.The temperature effect on the sensing performance of the metal film was also investigated.
In this paper, palladium-silver （Pd-Ag） system was studied for hydrogen sensing. Nanofilm of Pd-Ag was fabricated on a porous ceramic substrate through a combination of microfabrication techniques. The electric resistance of the zigzag-shaped microstructure was measured toward hydrogen concentration change. The sensing element demonstrates high sensitivity, fast response and fast recovery to hydrogen. The Pd-Ag film was characterized by scanning electron microscopy （SEM） equipped with X probe to correlate its physical and chemical properties to its sensing＇performance. The present sensor is very promising for room temperature hydrogen leakage detection and related applications. The temperature effect on the sensing performance of the metal film was also investigated.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第A03期25-28,共4页
Rare Metal Materials and Engineering
基金
The project is sponsored by the Scientific Research Foundation for the Returned 0verseas Chinese Scholars；State Education Ministry；the Zhejiang Natural Science Foundation under Grant No. Y404325.
