Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide
Artículo finalmente publicado en: Venosta, L. F., Bracamonte, M. V., Rodríguez, M. C., Jacobo, S. E. y Bercoff, P. G. (2017). Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free elect...
| Main Authors: | , , , , |
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| Format: | info:eu-repo/semantics/acceptedVersion |
| Language: | eng |
| Published: |
2024
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| Online Access: | http://hdl.handle.net/11086/552232 |
| _version_ | 1802316308050608128 |
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| author | Venosta, Lisandro Francisco Bracamonte, María Victoria Rodríguez, Marcela Cecilia Jacobo, Silvia Elena Bercoff, Paula Gabriela |
| author2 | https://orcid.org/0000-0001-7073-8519 |
| author_facet | https://orcid.org/0000-0001-7073-8519 Venosta, Lisandro Francisco Bracamonte, María Victoria Rodríguez, Marcela Cecilia Jacobo, Silvia Elena Bercoff, Paula Gabriela |
| author_sort | Venosta, Lisandro Francisco |
| collection | Repositorio Digital Universitario |
| description | Artículo finalmente publicado en: Venosta, L. F., Bracamonte, M. V., Rodríguez, M. C., Jacobo, S. E. y Bercoff, P. G. (2017). Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide. Sensors and Actuators B: Chemical, 248, 460-469. https://doi.org/10.1016/j.snb.2017.03.159 |
| format | info:eu-repo/semantics/acceptedVersion |
| id | rdu-unc.552232 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2024 |
| record_format | dspace |
| spelling | rdu-unc.5522322024-06-14T12:44:21Z Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide Venosta, Lisandro Francisco Bracamonte, María Victoria Rodríguez, Marcela Cecilia Jacobo, Silvia Elena Bercoff, Paula Gabriela https://orcid.org/0000-0001-7073-8519 https://orcid.org/0000-0003-1083-1812 https://orcid.org/0000-0002-0606-8407 Magnetite Graphite Hybrid material Hydrogen peroxide Sensor Artículo finalmente publicado en: Venosta, L. F., Bracamonte, M. V., Rodríguez, M. C., Jacobo, S. E. y Bercoff, P. G. (2017). Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide. Sensors and Actuators B: Chemical, 248, 460-469. https://doi.org/10.1016/j.snb.2017.03.159 info:eu-repo/semantics/acceptedVersion Fil: Venosta, Lisandro Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Venosta, Lisandro Francisco. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Venosta, Lisandro Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Bracamonte, María Victoria. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Bracamonte, María Victoria. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Bracamonte, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; Argentina. Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Rodríguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Jacobo, Silvia Elena. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Fil: Jacobo, Silvia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Fil: Jacobo, Silvia Elena. Universidad de Buenos Aires. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Bercoff, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. A simple synthesis procedure was designed to obtain hybrid materials based on graphite structures and magnetite nanoparticles. These new structures were characterized using different techniques. The results show that the graphite structures were densely decorated by spherical Fe₃O₄ nanoparticles. The amount of immobilized magnetite was controlled by the number of defects present in the different pristine graphite materials. The electro-catalytic behavior of modified glassy carbon electrodes, using magnetite-graphite hybrids exhibited an enhanced catalytic ability towards H2O2 reduction. The best response was obtained using graphites with smaller particle sizes (2 μm and 17 μm), modified with nano-magnetite. The performance of the electrode in terms of sensitivity for H2O2 amperometric detection was (1.1 ± 0.1) x 105 μA M-¹ cm-² mg-¹ while the LOD was 0.50 nM at a working potential of -0.200 V. These values are comparable to those obtained using carbon nanotubes and metal or metal-oxide based sensors. The new proposed material appears as a very promising alternative for H2O2 non-enzymatic sensors mainly because its low cost and abundance. Also, the comparison between the different carbon substrates highlights the importance of the close contact between carbon and nano-magnetite, which enhances the catalytic behavior of the material. info:eu-repo/semantics/acceptedVersion Fil: Venosta, Lisandro Francisco. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Venosta, Lisandro Francisco. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Venosta, Lisandro Francisco. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Bracamonte, María Victoria. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Bracamonte, María Victoria. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Bracamonte, María Victoria. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas; Argentina. Fil: Rodríguez, Marcela Cecilia. Universidad Nacional de Córdoba. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Rodríguez, Marcela Cecilia. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Investigaciones en Físico-Química de Córdoba; Argentina. Fil: Jacobo, Silvia Elena. Universidad de Buenos Aires. Facultad de Ingeniería; Argentina. Fil: Jacobo, Silvia Elena. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Fil: Jacobo, Silvia Elena. Universidad de Buenos Aires. Instituto de Tecnologías y Ciencias de la Ingeniería "Hilario Fernández Long"; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Facultad de Matemática, Astronomía, Física y Computación; Argentina. Fil: Bercoff, Paula Gabriela. Universidad Nacional de Córdoba. Instituto de Física Enrique Gaviola; Argentina. Fil: Bercoff, Paula Gabriela. Consejo Nacional de Investigaciones Científicas y Técnicas. Instituto de Física Enrique Gaviola; Argentina. Nano-materiales (producción y propiedades) 2024-06-07T12:44:05Z 2024-06-07T12:44:05Z 2017 article http://hdl.handle.net/11086/552232 eng De la versión publicada: https://doi.org/10.1016/j.snb.2017.03.159 Atribución-NoComercial-SinDerivadas 4.0 Internacional http://creativecommons.org/licenses/by-nc-nd/4.0/deed.es Impreso; Electrónico y/o Digital e-ISSN: 1873-3077 ISSN: 0925-4005 |
| spellingShingle | Magnetite Graphite Hybrid material Hydrogen peroxide Sensor Venosta, Lisandro Francisco Bracamonte, María Victoria Rodríguez, Marcela Cecilia Jacobo, Silvia Elena Bercoff, Paula Gabriela Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title | Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title_full | Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title_fullStr | Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title_full_unstemmed | Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title_short | Comparative studies of hybrid functional materials based on different carbon structures decorated with nano-magnetite. Suitable application as platforms for enzyme-free electrochemical sensing of hydrogen peroxide |
| title_sort | comparative studies of hybrid functional materials based on different carbon structures decorated with nano magnetite suitable application as platforms for enzyme free electrochemical sensing of hydrogen peroxide |
| topic | Magnetite Graphite Hybrid material Hydrogen peroxide Sensor |
| url | http://hdl.handle.net/11086/552232 |
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