Fabrication and characterization of a titanium dioxide nanosensor for engine oil applications
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ID: 286963
2019
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Abstract
This study aims to synthesize and characterize titanium dioxide nanomaterials via Horizontal Vapor Phase Growth (HVPG) Technique toward making a sensor for detecting engine oil degradation. In this work, the ramp rate was set at 10℃/min with the variation of the growth temperature at 1000℃, 1100℃, and 1200℃ and baking time at 4hrs, 6hrs, and 8hrs. Scanning Electron Microscope (SEM) and Energy Dispersive X-ray (EDX) were used for analyzing surface morphology and topology and determining the chemical composition, respectively. SEM results showed that various sizes of titanium dioxide nanoparticles were found on the substrate surface in Zone B and Zone C at the different varied growth temperature and baking time. Moreover, EDX results revealed that all of the grown nanoparticles at the varied growth mechanisms had the correct atomic ratio of titanium to oxygen. Furthermore, JMP ANOVA software was utilized to perform the statistical analysis of the grown TiO2 nanoparticle diameters in Zone B and Zone C including studying the effect of the varied growth mechanisms on TiO2 nanoparticles diameter via Graph Builder and expressing the predicted diameter equation in function of growth temperature and baking time and minimizing the nanoparticle diameters thru Fit Model. Results showed that increasing the baking temperature and time led to decrease the nanoparticle diameters. And also, the prediction expression can be utilized to predict the diameter by knowing the specific temperature and baking time within the range of the varied growth mechanisms. Based on the minimized results of both Zone B and Zone C, the best sample was obtained at 1200℃ and 8hrs the diameter of 107.1568nm. However, at the best growth mechanisms, the smallest diameter of the nanoparticles was obtained in Zone B utilized for AFM testing, mechanical properties testing, and sensor testing. Additionally, AFM was used to identify the surface roughness of the grown nanoparticles at the best growth mechanisms. Two scanning spots proceeded during AFM testing. Results presented that different scanning spots of the said nanomaterials had various average surface roughness with scanning spot A of 7.138 nm and scanning spot B of 13.405nm. In addition, UTM test and scratch test were performed to determine the force needed to crack the tubes in the purpose of comparing the stress of the tubes with and without nanomaterials and get the scratched force applied on the glass substrate in the aim of computing the stress of the grown nanomaterials. Results revealed that the
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| Authors | Uon, Leapheng |
| Journal | Malay Journal |
| Year | 2019 |
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| Keywords | Keywords not found |
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