Title
The Effect of Zeolite Composition and Grain Size on Gas Sensing Properties of SnO2/Zeolite Sensor.
Abstract
In order to improve the sensing properties of tin dioxide gas sensor, four kinds of different SiO2/Al2O3 ratio, different particle size of MFI type zeolites (ZSM-5) were coated on the SnO2 to prepared zeolite modified gas sensors, and the gas sensing properties were tested. The measurement results showed that the response values of ZSM-5 zeolite (SiO2/Al2O3 = 70, grain size 300 nm) coated SnO2 gas sensors to formaldehyde vapor were increased, and the response to acetone decreased compared with that of SnO2 gas sensor, indicating an improved selectivity property. The other three ZSM-5 zeolites with SiO2/Al2O3 70, 150 and 470, respectively, and grain sizes all around 1 mu m coated SnO2 sensors did not show much difference with SnO2 sensor for the response properties to both formaldehyde and acetone. The sensing mechanism of ZSM-5 modified sensors was briefly analyzed.
Year
DOI
Venue
2018
10.3390/s18020390
SENSORS
Keywords
Field
DocType
gas sensor,zeolite,tin dioxide,selectivity,catalytic property,coating
Acetone,Analytical chemistry,Zeolite,Coating,Tin dioxide,Formaldehyde,Grain size,Particle size,Engineering,Selectivity
Journal
Volume
Issue
ISSN
18
2
1424-8220
Citations 
PageRank 
References 
0
0.34
2
Authors
6
Name
Order
Citations
PageRank
Yanhui Sun100.34
Jing Wang2266.87
Xiaogan Li300.68
Haiying Du411.03
Qingpan Huang500.34
Xiaofeng Wang6410.54