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Sensors based on porous Pd-doped hematite (α-Fe2O 3) for LPG detection

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dc.contributor.author Picasso G. es_PE
dc.contributor.author Sun Kou M.R. es_PE
dc.contributor.author Vargasmachuca O. es_PE
dc.contributor.author Rojas J. es_PE
dc.contributor.author Zavala C. es_PE
dc.contributor.author Lopez A. es_PE
dc.contributor.author Irusta S. es_PE
dc.date.accessioned 2024-05-30T23:13:38Z
dc.date.available 2024-05-30T23:13:38Z
dc.date.issued 2014
dc.description The authors gratefully acknowledge the financial support for this work provided by CONCYTEC (Project 371-2012-CONCYTEC-OAJ),
dc.description.abstract In this work, sensors based on nanoparticles of α-Fe2O3 doped with different amounts of Pd ranging from 0.1 to 1.0 wt.% were prepared by coprecipitation for liquefied petroleum gas (LPG) detection. Solids were characterized by thermogravimetric and differential thermal analysis (TG–DTA), X-ray diffraction (XRD), adsorption–desorption of N2 (BET surface), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Sample tests of Pd-doped sensors showed much higher sensitivity than the undoped one revealing the promotion electronic effect of Pd2+ on the surface reaction. Among all samples, the sensor with 0.75 wt.% Pd presented the highest gas response at 300 °C in all gas tested concentrations, likely due to the highest BET surface, well-defined hematite crystalline structure and best surface contact over Pd surface via electronic mechanism.
dc.description.sponsorship Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica - Concytec
dc.identifier.doi https://doi.org/10.1016/j.micromeso.2013.11.014
dc.identifier.scopus 2-s2.0-84889803714
dc.identifier.uri https://hdl.handle.net/20.500.12390/941
dc.language.iso eng
dc.publisher Elsevier B.V.
dc.rights info:eu-repo/semantics/openAccess
dc.subject Pd-doped α-Fe2O3
dc.subject Gas sensor es_PE
dc.subject LPG detection es_PE
dc.subject.ocde https://purl.org/pe-repo/ocde/ford#1.04.00
dc.title Sensors based on porous Pd-doped hematite (α-Fe2O 3) for LPG detection
dc.type info:eu-repo/semantics/article
dspace.entity.type Publication
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