Platinum–Vanadium Oxide Nanotube Hybrids
<p>Abstract</p> <p>The present contribution reports on the features of platinum-based systems supported on vanadium oxide nanotubes. The synthesis of nanotubes was carried out using a commercial vanadium pentoxide via hydrothermal route. The nanostructured hybrid materials were pre...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
SpringerOpen
2010-01-01
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| Series: | Nanoscale Research Letters |
| Subjects: | |
| Online Access: | http://dx.doi.org/10.1007/s11671-010-9596-z |
| _version_ | 1797705248593149952 |
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| author | Hernández EduardoPadrón Mello FilipeLS Costa LídiaOO de Farias AndréaMDuarte Fraga Marco |
| author_facet | Hernández EduardoPadrón Mello FilipeLS Costa LídiaOO de Farias AndréaMDuarte Fraga Marco |
| author_sort | Hernández EduardoPadrón |
| collection | DOAJ |
| description | <p>Abstract</p> <p>The present contribution reports on the features of platinum-based systems supported on vanadium oxide nanotubes. The synthesis of nanotubes was carried out using a commercial vanadium pentoxide via hydrothermal route. The nanostructured hybrid materials were prepared by wet impregnation using two different platinum precursors. The formation of platinum nanoparticles was evaluated by applying distinct reduction procedures. All nanostructured samples were essentially analysed by X-ray diffraction and transmission electron microscopy. After reduction, transmission electron microscopy also made it possible to estimate particle size distribution and mean diameter calculations. It could be seen that all reduction procedures did not affect the nanostructure of the supports and that the formation of metallic nanoparticles is quite efficient with an indistinct distribution along the nanotubes. Nevertheless, the reduction procedure determined the diameter, dispersion and shape of the metallic particles. It could be concluded that the use of H<sub>2</sub>PtCl<sub>6</sub> is more suitable and that the use of hydrogen as reducing agent leads to a nanomaterial with unagglomerated round-shaped metallic particles with mean size of 6–7 nm.</p> |
| first_indexed | 2024-03-12T05:34:18Z |
| format | Article |
| id | doaj.art-47b5366092054aa6aff67ee1daa672ec |
| institution | Directory Open Access Journal |
| issn | 1931-7573 1556-276X |
| language | English |
| last_indexed | 2024-03-12T05:34:18Z |
| publishDate | 2010-01-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | Nanoscale Research Letters |
| spelling | doaj.art-47b5366092054aa6aff67ee1daa672ec2023-09-03T06:33:04ZengSpringerOpenNanoscale Research Letters1931-75731556-276X2010-01-015610021009Platinum–Vanadium Oxide Nanotube HybridsHernández EduardoPadrónMello FilipeLSCosta LídiaOOde Farias AndréaMDuarteFraga Marco<p>Abstract</p> <p>The present contribution reports on the features of platinum-based systems supported on vanadium oxide nanotubes. The synthesis of nanotubes was carried out using a commercial vanadium pentoxide via hydrothermal route. The nanostructured hybrid materials were prepared by wet impregnation using two different platinum precursors. The formation of platinum nanoparticles was evaluated by applying distinct reduction procedures. All nanostructured samples were essentially analysed by X-ray diffraction and transmission electron microscopy. After reduction, transmission electron microscopy also made it possible to estimate particle size distribution and mean diameter calculations. It could be seen that all reduction procedures did not affect the nanostructure of the supports and that the formation of metallic nanoparticles is quite efficient with an indistinct distribution along the nanotubes. Nevertheless, the reduction procedure determined the diameter, dispersion and shape of the metallic particles. It could be concluded that the use of H<sub>2</sub>PtCl<sub>6</sub> is more suitable and that the use of hydrogen as reducing agent leads to a nanomaterial with unagglomerated round-shaped metallic particles with mean size of 6–7 nm.</p>http://dx.doi.org/10.1007/s11671-010-9596-zNanotubesPt nanoparticlesHybrid materialsNanostructured materials |
| spellingShingle | Hernández EduardoPadrón Mello FilipeLS Costa LídiaOO de Farias AndréaMDuarte Fraga Marco Platinum–Vanadium Oxide Nanotube Hybrids Nanoscale Research Letters Nanotubes Pt nanoparticles Hybrid materials Nanostructured materials |
| title | Platinum–Vanadium Oxide Nanotube Hybrids |
| title_full | Platinum–Vanadium Oxide Nanotube Hybrids |
| title_fullStr | Platinum–Vanadium Oxide Nanotube Hybrids |
| title_full_unstemmed | Platinum–Vanadium Oxide Nanotube Hybrids |
| title_short | Platinum–Vanadium Oxide Nanotube Hybrids |
| title_sort | platinum 8211 vanadium oxide nanotube hybrids |
| topic | Nanotubes Pt nanoparticles Hybrid materials Nanostructured materials |
| url | http://dx.doi.org/10.1007/s11671-010-9596-z |
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