Koo, Bon.-Ryul
(Program of Materials Science & Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology)
,
Oh, Sung.-Tag
(Department of Materials Science and Engineering, Seoul National University of Science and Technology)
,
Ahn, Hyo.-Jin
(Program of Materials Science & Engineering, Convergence Institute of Biomedical Engineering and Biomaterials, Seoul National University of Science and Technology)
Abstract We fabricated various morphological SnO2 nanofibres (NFs), which are controlled from dense to fibre-in-hollow and hollow nanostructures, by electrospinning with the introduction of camphene. To control the morphologies of the SnO2 NFs, the relative loading amounts of camphene to solvent we...
Abstract We fabricated various morphological SnO2 nanofibres (NFs), which are controlled from dense to fibre-in-hollow and hollow nanostructures, by electrospinning with the introduction of camphene. To control the morphologies of the SnO2 NFs, the relative loading amounts of camphene to solvent were adjusted to be 0, 50, and 125wt%. As a result, the SnO2 NFs formed at 0wt% camphene showed a dense nanostructure due to the shrinkage effect caused by the thermal decomposition of the polyvinylpyrrolidones. For 50wt% camphene, the SnO2 NFs formed the fibre-in-hollow nanostructure because of the occurrence of the Kirkendal effect on the surface of the as-spun SnO2 NFs. For 125wt% camphene, the morphology exhibited a hollow nanostructure because of the occurrence of the Kirkendal effect on the entire area of the as-spun SnO2 NFs. Thus, as the loading amount of camphene was increased, the morphology of the SnO2 NFs changed from dense to fibre-in-hollow and to hollow. Highlights Different morphological SnO2 nanofibres (NFs) synthesized by electrospinning. A study on formation mechanisms for different morphological properties by camphene. Fibre-in-hollow nanostructure formed by Kirkendal effect on surface of as-spun NF. Hollow nanostructure formed by Kirkendal effect on entire area of as-spun NF.
Abstract We fabricated various morphological SnO2 nanofibres (NFs), which are controlled from dense to fibre-in-hollow and hollow nanostructures, by electrospinning with the introduction of camphene. To control the morphologies of the SnO2 NFs, the relative loading amounts of camphene to solvent were adjusted to be 0, 50, and 125wt%. As a result, the SnO2 NFs formed at 0wt% camphene showed a dense nanostructure due to the shrinkage effect caused by the thermal decomposition of the polyvinylpyrrolidones. For 50wt% camphene, the SnO2 NFs formed the fibre-in-hollow nanostructure because of the occurrence of the Kirkendal effect on the surface of the as-spun SnO2 NFs. For 125wt% camphene, the morphology exhibited a hollow nanostructure because of the occurrence of the Kirkendal effect on the entire area of the as-spun SnO2 NFs. Thus, as the loading amount of camphene was increased, the morphology of the SnO2 NFs changed from dense to fibre-in-hollow and to hollow. Highlights Different morphological SnO2 nanofibres (NFs) synthesized by electrospinning. A study on formation mechanisms for different morphological properties by camphene. Fibre-in-hollow nanostructure formed by Kirkendal effect on surface of as-spun NF. Hollow nanostructure formed by Kirkendal effect on entire area of as-spun NF.
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