The Experts below are selected from a list of 9336 Experts worldwide ranked by ideXlab platform
Peng Jun Yao - One of the best experts on this subject based on the ideXlab platform.
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hollow hierarchical sno2 zno composite nanofibers with heterostructure based on Electrospinning Method for detecting methanol
Sensors and Actuators B-chemical, 2014Co-Authors: Wei Tang, Jing Wang, Peng Jun YaoAbstract:Abstract SnO2-ZnO composite nanofibers were synthesized by an Electrospinning Method in this study. The structural composition and morphology were characterized by X-ray diffraction, scanning electron microscopy and N2 physical adsorption. The results indicated that hollow hierarchical SnO2-ZnO composite nanofibers having mesopore structure formed after sintering at 600 °C for 3 h. The gas sensor prepared by the SnO2-ZnO composite nanofibers exhibited good selectivity to methanol in the presence of ethanol, acetone, formaldehyde, ammonia, toluene and benzene at the optimum operating temperature of 350 °C. The response and recovery time to 10 ppm methanol were about 20 s and 40 s, respectively. The growth mechanism of the hollow hierarchical nanofibers was discussed, as well as the methanol adsorption–desorption mechanism.
Mohammad Reza Vaezi - One of the best experts on this subject based on the ideXlab platform.
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synthesis of sno2 zno composite nanofibers by Electrospinning Method and study of its ethanol sensing properties
Applied Surface Science, 2011Co-Authors: Hamed Akbari Khorami, M Keyanpourrad, Mohammad Reza VaeziAbstract:Abstract In this paper, we report the synthesis of SnO 2 /ZnO composite nanofibers via Electrospinning Method. Polyvinyl alcohol (PVA)/zinc acetate/stannous chloride nanofibers were electrospun using a solution containing PVA, zinc acetate and stannous chloride in distilled-water followed by calcination at 650 °C for 2 h, obtaining the related composite nanofibers. The nanofibers were characterized by simultaneous thermal analysis (STA), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared spectroscopy (FTIR). Ethanol sensing of the nanofibers showed a good and desirable sensing behavior such as high sensitivity, quick response and recovery times.
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Synthesis of SnO2/ZnO composite nanofibers by Electrospinning Method and study of its ethanol sensing properties
Applied Surface Science, 2011Co-Authors: Hamed Akbari Khorami, M. Keyanpour-rad, Mohammad Reza VaeziAbstract:Abstract In this paper, we report the synthesis of SnO 2 /ZnO composite nanofibers via Electrospinning Method. Polyvinyl alcohol (PVA)/zinc acetate/stannous chloride nanofibers were electrospun using a solution containing PVA, zinc acetate and stannous chloride in distilled-water followed by calcination at 650 °C for 2 h, obtaining the related composite nanofibers. The nanofibers were characterized by simultaneous thermal analysis (STA), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared spectroscopy (FTIR). Ethanol sensing of the nanofibers showed a good and desirable sensing behavior such as high sensitivity, quick response and recovery times.
Hamed Akbari Khorami - One of the best experts on this subject based on the ideXlab platform.
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synthesis of sno2 zno composite nanofibers by Electrospinning Method and study of its ethanol sensing properties
Applied Surface Science, 2011Co-Authors: Hamed Akbari Khorami, M Keyanpourrad, Mohammad Reza VaeziAbstract:Abstract In this paper, we report the synthesis of SnO 2 /ZnO composite nanofibers via Electrospinning Method. Polyvinyl alcohol (PVA)/zinc acetate/stannous chloride nanofibers were electrospun using a solution containing PVA, zinc acetate and stannous chloride in distilled-water followed by calcination at 650 °C for 2 h, obtaining the related composite nanofibers. The nanofibers were characterized by simultaneous thermal analysis (STA), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared spectroscopy (FTIR). Ethanol sensing of the nanofibers showed a good and desirable sensing behavior such as high sensitivity, quick response and recovery times.
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Synthesis of SnO2/ZnO composite nanofibers by Electrospinning Method and study of its ethanol sensing properties
Applied Surface Science, 2011Co-Authors: Hamed Akbari Khorami, M. Keyanpour-rad, Mohammad Reza VaeziAbstract:Abstract In this paper, we report the synthesis of SnO 2 /ZnO composite nanofibers via Electrospinning Method. Polyvinyl alcohol (PVA)/zinc acetate/stannous chloride nanofibers were electrospun using a solution containing PVA, zinc acetate and stannous chloride in distilled-water followed by calcination at 650 °C for 2 h, obtaining the related composite nanofibers. The nanofibers were characterized by simultaneous thermal analysis (STA), X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDX) and Fourier Transform Infrared spectroscopy (FTIR). Ethanol sensing of the nanofibers showed a good and desirable sensing behavior such as high sensitivity, quick response and recovery times.
Ian T. Ferguson - One of the best experts on this subject based on the ideXlab platform.
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Investigating process-structure relations of ZnO nanofiber via Electrospinning Method
Composites Part B: Engineering, 2017Co-Authors: Ehsan Ghafari, Yining Feng, Yao Liu, Ian T. FergusonAbstract:Abstract 1D ZnO nanofibers were fabricated in this study using the Electrospinning Method through sol-gel approach. The effects of fabrication processing parameters on the nanofibers size have been systematically investigated. The higher concentration of the polymer resulted in a broader distribution of the nanofibers diameter due to non-uniform ejection of the fluid jet. The results indicated that an increase in annealing temperature resulted in a lower diameter size and more uniformity of the nanofiber due to decomposition of PVA. The DSC result confirms that an annealing temperature higher than 480 °C is required to remove the PVA and fully decompose the zinc acetate to form crystalline ZnO nano structure. The presence of a crystal ZnO phase was further confirmed by TGA, XRD, FTIR and PL analysis.
Wei Tang - One of the best experts on this subject based on the ideXlab platform.
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hollow hierarchical sno2 zno composite nanofibers with heterostructure based on Electrospinning Method for detecting methanol
Sensors and Actuators B-chemical, 2014Co-Authors: Wei Tang, Jing Wang, Peng Jun YaoAbstract:Abstract SnO2-ZnO composite nanofibers were synthesized by an Electrospinning Method in this study. The structural composition and morphology were characterized by X-ray diffraction, scanning electron microscopy and N2 physical adsorption. The results indicated that hollow hierarchical SnO2-ZnO composite nanofibers having mesopore structure formed after sintering at 600 °C for 3 h. The gas sensor prepared by the SnO2-ZnO composite nanofibers exhibited good selectivity to methanol in the presence of ethanol, acetone, formaldehyde, ammonia, toluene and benzene at the optimum operating temperature of 350 °C. The response and recovery time to 10 ppm methanol were about 20 s and 40 s, respectively. The growth mechanism of the hollow hierarchical nanofibers was discussed, as well as the methanol adsorption–desorption mechanism.