Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth
The catalytic activity of cobalt and iron nanoparticles for the growth of carbon nanotubes (CNTs) was studied by a specific reproducible and up-scalable fabrication method. Co and Fe catalysts were deposited over SiO<sub>2</sub> nanoparticles by a wet-impregnation method and two differen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-08-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/11/8/986 |
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| author | Tairan da Cunha Alberto Maulu Jérôme Guillot Yves Fleming Benoit Duez Damien Lenoble Didier Arl |
| author_facet | Tairan da Cunha Alberto Maulu Jérôme Guillot Yves Fleming Benoit Duez Damien Lenoble Didier Arl |
| author_sort | Tairan da Cunha |
| collection | DOAJ |
| description | The catalytic activity of cobalt and iron nanoparticles for the growth of carbon nanotubes (CNTs) was studied by a specific reproducible and up-scalable fabrication method. Co and Fe catalysts were deposited over SiO<sub>2</sub> nanoparticles by a wet-impregnation method and two different annealing steps were applied for the catalyst formation/activation. The samples were calcined at an optimal temperature of 450 °C resulting in the formation of metal oxide nano-islands without the detection of silicates. Further reduction treatment (700 °C) under H<sub>2</sub> successfully converted oxide nanoparticles to Co and Fe metallic species. Furthermore, the catalytic efficiency of both supported-metal nanoparticles at 2 and 5% in weight of silica was evaluated through the growth of CNTs. The CNT structure, morphology and size dispersion were tailored according to the metal catalyst concentration. |
| first_indexed | 2024-03-10T08:56:55Z |
| format | Article |
| id | doaj.art-db9a644b004645aba556d72c761e954c |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-10T08:56:55Z |
| publishDate | 2021-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Catalysts |
| spelling | doaj.art-db9a644b004645aba556d72c761e954c2023-11-22T07:07:38ZengMDPI AGCatalysts2073-43442021-08-0111898610.3390/catal11080986Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes GrowthTairan da Cunha0Alberto Maulu1Jérôme Guillot2Yves Fleming3Benoit Duez4Damien Lenoble5Didier Arl6Materials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgMaterials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgMaterials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgMaterials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgGoodyear Innovation Center Luxembourg (GIC*L), Avenue G.T. Smith, L-7750 Colmar-Berg, LuxembourgMaterials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgMaterials Research and Technology Department, Luxembourg Institute of Science and Technology, 41, rue du Brill, L-4422 Sanem, LuxembourgThe catalytic activity of cobalt and iron nanoparticles for the growth of carbon nanotubes (CNTs) was studied by a specific reproducible and up-scalable fabrication method. Co and Fe catalysts were deposited over SiO<sub>2</sub> nanoparticles by a wet-impregnation method and two different annealing steps were applied for the catalyst formation/activation. The samples were calcined at an optimal temperature of 450 °C resulting in the formation of metal oxide nano-islands without the detection of silicates. Further reduction treatment (700 °C) under H<sub>2</sub> successfully converted oxide nanoparticles to Co and Fe metallic species. Furthermore, the catalytic efficiency of both supported-metal nanoparticles at 2 and 5% in weight of silica was evaluated through the growth of CNTs. The CNT structure, morphology and size dispersion were tailored according to the metal catalyst concentration.https://www.mdpi.com/2073-4344/11/8/986wet impregnationmetal acetylacetonatemetal nanocatalystSiO<sub>2</sub> nanoparticlesCNT growth |
| spellingShingle | Tairan da Cunha Alberto Maulu Jérôme Guillot Yves Fleming Benoit Duez Damien Lenoble Didier Arl Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth Catalysts wet impregnation metal acetylacetonate metal nanocatalyst SiO<sub>2</sub> nanoparticles CNT growth |
| title | Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth |
| title_full | Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth |
| title_fullStr | Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth |
| title_full_unstemmed | Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth |
| title_short | Design of Silica Nanoparticles-Supported Metal Catalyst by Wet Impregnation with Catalytic Performance for Tuning Carbon Nanotubes Growth |
| title_sort | design of silica nanoparticles supported metal catalyst by wet impregnation with catalytic performance for tuning carbon nanotubes growth |
| topic | wet impregnation metal acetylacetonate metal nanocatalyst SiO<sub>2</sub> nanoparticles CNT growth |
| url | https://www.mdpi.com/2073-4344/11/8/986 |
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