Title :
SnO2 and Ce modified SnO2 mesostructured for selective ethanol detection
Author :
Navarrete, Laura ; Toldra-Reig, Fidel ; Serra, Jose M. ; Somacescu, Simona
Author_Institution :
Inst. de Tecnol. Quim., Univ. Politec. de Valencia, Valencia, Spain
Abstract :
SnO2 and Ce modified SnO2 mesoarchitectured have been prepared using an ionic surfactant (CTAB) as template for sensing applications. The procedure involves a versatile route based on hydrothermal treatment under autogenous pressure for obtaining mesoarchitectures built from nanoparticles. The structural, textural and morphological features of the resultant powders were investigated by scanning electron microscopy (SEM), while the surface chemistry was closely monitored by X-ray photoelectron spectroscopy (XPS). H2, CO and C2H6O responses are studied.
Keywords :
X-ray photoelectron spectra; cerium; chemical sensors; nanoparticles; nanosensors; organic compounds; scanning electron microscopy; surface chemistry; surfactants; tin compounds; CTAB; Ce-SnO2; SEM; SnO2; X-ray photoelectron spectroscopy; XPS; autogenous pressure; hydrothermal treatment; ionic surfactant; modified mesoarchitecture; modified mesostructure; nanoparticle; scanning electron microscopy; selective ethanol detection; surface chemistry; Actuators; Ethanol; Resistance; Surface morphology; Surface treatment; Temperature sensors; Ce3+ Oxidation state; Sensors; SnO2; Surfactant Mesoporous;
Conference_Titel :
SENSORS, 2014 IEEE
Conference_Location :
Valencia
DOI :
10.1109/ICSENS.2014.6984992
