AAO-Assisted Nanoporous Platinum Films for Hydrogen Sensor Application

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dc.authoridKILINC, Necmettin/0000-0003-2123-2938
dc.authoridSisman, Orhan/0000-0003-4320-2158
dc.authorwosidKILINC, Necmettin/AAT-9845-2020
dc.authorwosidSisman, Orhan/AAX-4010-2020
dc.contributor.authorSener, Melike
dc.contributor.authorSisman, Orhan
dc.contributor.authorKilinc, Necmettin
dc.date.accessioned2024-08-04T20:53:35Z
dc.date.available2024-08-04T20:53:35Z
dc.date.issued2023
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe effects of the porosity and the thickness on the ability of hydrogen sensing is demonstrated through a comparison of compact and nanoporous platinum film sensors. The synthesis of anodic aluminum oxide (AAO) nanotubes with an average pore diameter of less than 100 nm served as the template for the fabrication of nanoporous Pt films using an anodization method. This was achieved by applying a voltage of 40 V in 0.4 M of a phosphoric acid solution at 20 degrees C. To compare the film and nanoporous Pt, layers of approximately 3 nm and 20 nm were coated on both glass substrates and AAO templates using a sputtering technique. FESEM images monitored the formation of nanoporosity by observing the Pt layers covering the upper edges of the AAO nanotubes. Despite their low thickness and the poor long-range order, the EDX and XRD measurements confirmed and uncovered the crystalline properties of the Pt films by comparing the bare and the Pt deposited AAO templates. The nanoporous Pt and Pt thin film sensors were tested in the hydrogen concentration range between 10-50,000 ppm H-2 at room temperature, 50 degrees C, 100 degrees C and 150 degrees C. The results reveal that nanoporous Pt performed higher sensitivity than the Pt thin film and the surface scattering phenomenon can express the hydrogen sensing mechanism of the Pt sensors.en_US
dc.identifier.doi10.3390/catal13030459
dc.identifier.issn2073-4344
dc.identifier.issue3en_US
dc.identifier.scopus2-s2.0-85151935290en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.3390/catal13030459
dc.identifier.urihttps://hdl.handle.net/11616/101278
dc.identifier.volume13en_US
dc.identifier.wosWOS:000954078400001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherMdpien_US
dc.relation.ispartofCatalystsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectplatinumen_US
dc.subjectAAO templateen_US
dc.subjectnanoporousen_US
dc.subjecthydrogen sensoren_US
dc.subjectresistive sensoren_US
dc.titleAAO-Assisted Nanoporous Platinum Films for Hydrogen Sensor Applicationen_US
dc.typeArticleen_US

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