Synthesis and analysis of TiO2 nanotubes by electrochemical anodization and machine learning method for hydrogen sensors

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dc.authoridTASYUREK, LUTFI BILAL/0000-0003-0607-648X
dc.authoridIsik, Esme/0000-0002-6179-5746
dc.authoridKILINC, Necmettin/0000-0003-2123-2938
dc.authoridisik, ibrahim/0000-0003-1355-9420
dc.authorwosidTASYUREK, LUTFI BILAL/ABC-1644-2020
dc.authorwosidIsik, Esme/AAG-5927-2019
dc.authorwosidKILINC, Necmettin/AAT-9845-2020
dc.authorwosidisik, ibrahim/AAG-5915-2019
dc.contributor.authorIsik, Esme
dc.contributor.authorTasyurek, Lutfi Bilal
dc.contributor.authorIsik, Ibrahim
dc.contributor.authorKilinc, Necmettin
dc.date.accessioned2024-08-04T20:52:05Z
dc.date.available2024-08-04T20:52:05Z
dc.date.issued2022
dc.departmentİnönü Üniversitesien_US
dc.description.abstractThe conductometric hydrogen gas sensors were used to explore TiO2 nanotubes in this study. TiO2 nanotubes are synthesized by anodization of the titanium foils using a neutral 0.5% and 1% (wt) NH4F in glycerol solution depending on anodization time and anodization voltage at the temperature of 20 degrees C. The amorphous, rutile and anatase phases of TiO2 are observed for as-prepared TiO2 nanotubes, annealed at 700 and 300 degrees C, respectively. The diameters of the nanotubes grow as the anodization time and voltage increase, according to scanning electron microscopy (SEM) images. The inner diameter of nanotubes is changed between similar to 70 nm to similar to 225 nm. Hydrogen sensing properties of Ti/TiO2 nanotubes/Pd device has been tested at room temperature under concertation range from 0.5% to 10% depending on the crystalline phase. The highest sensor response is observed for anatase crystalline TiO2 nanotubes. Typical Schottky-type behavior is observed from the I-V measurement. All the fabricated nanotube diameters are also simulated by using Support Vector Machine and Artificial Neural Network models. And also, some of the nanotube diameters which are not obtained experimentally (anodization voltage of 70 V) are estimated using the Support Vector Machine and Artificial Neural Network models. In addition, an analytical model is also proposed using Jacobi numeric analysis method alternative to the simulation model for the nanotube diameter. Finally, the analytical, simulation, and experimental results are compared, and the best result is obtained using the 1 Hidden Layer Artificial Neural Network model.en_US
dc.description.sponsorshipInonu University Scientific Research Unit of Turkey [FBA-2020-2315]en_US
dc.description.sponsorshipThis study was funded by Inonu University Scientific Research Unit of Turkey (BAP, Project Number: FBA-2020-2315) .en_US
dc.identifier.doi10.1016/j.mee.2022.111834
dc.identifier.issn0167-9317
dc.identifier.issn1873-5568
dc.identifier.scopus2-s2.0-85132850160en_US
dc.identifier.scopusqualityQ2en_US
dc.identifier.urihttps://doi.org/10.1016/j.mee.2022.111834
dc.identifier.urihttps://hdl.handle.net/11616/100745
dc.identifier.volume262en_US
dc.identifier.wosWOS:000829756000005en_US
dc.identifier.wosqualityQ3en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofMicroelectronic Engineeringen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectTitanium dioxideen_US
dc.subjectNanotubesen_US
dc.subjectHydrogen sensoren_US
dc.subjectAnodizationen_US
dc.subjectSupport vector machineen_US
dc.subjectArtificial neural networken_US
dc.titleSynthesis and analysis of TiO2 nanotubes by electrochemical anodization and machine learning method for hydrogen sensorsen_US
dc.typeArticleen_US

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