Title :
Induced Pd nanoclustering on SnO2 nanoparticles for the enhancement of gas sensor devices
Author :
Cirera, A. ; Arbiol, J. ; Peiró, F. ; Cornet, A. ; Morante, J.R.
Author_Institution :
EME-CEMIC, Barcelona Univ., Spain
Abstract :
Palladium nanoclusters were observed (HRTEM) on SnO2 nanoparticles modified with high dose of Pd. The electrical performances of the sensors coated with this Pd-nanoclustered sensing material reveal an important improvement of the selectivity for CO and CH4. As result, CO, CH4 and mixtures of them can be distinguished in a wide range of humidity (from 20 to 80%) with a unique sensor working in a pulsed temperature modulation
Keywords :
carbon compounds; gas sensors; humidity; nanostructured materials; organic compounds; palladium; semiconductor materials; tin compounds; transmission electron microscopy; CH4; CO; HRTEM; Pd; Pd-nanoclustered sensing material; SnO2; SnO2 nanoparticles; electrical performances; gas sensor devices; humidity; induced Pd nanoclustering; methane; palladium nanoclusters; pulsed temperature modulation; sensors; Gas detectors; Gases; Humidity; Nanoparticles; Nanoscale devices; Palladium; Semiconductor materials; Sensor phenomena and characterization; Testing; Tin;
Conference_Titel :
Nanotechnology, 2001. IEEE-NANO 2001. Proceedings of the 2001 1st IEEE Conference on
Conference_Location :
Maui, HI
Print_ISBN :
0-7803-7215-8
DOI :
10.1109/NANO.2001.966480
