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Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing
Graphene-based materials are widely studied to enable significant improvements in electroanalytical devices requiring new generations of robust, sensitive and low-cost electrodes. In this paper, we present a direct one-step route to synthetize a functional nitrogen-doped graphene film onto a Ni-cove...
Autores principales: | , , , , , , , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2019
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6416724/ https://www.ncbi.nlm.nih.gov/pubmed/30813395 http://dx.doi.org/10.3390/ma12040666 |
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author | Bourquard, Florent Bleu, Yannick Loir, Anne-Sophie Caja-Munoz, Borja Avila, José Asensio, Maria-Carmen Raimondi, Gaëtan Shokouhi, Maryam Rassas, Ilhem Farre, Carole Chaix, Carole Barnier, Vincent Jaffrezic-Renault, Nicole Garrelie, Florence Donnet, Christophe |
author_facet | Bourquard, Florent Bleu, Yannick Loir, Anne-Sophie Caja-Munoz, Borja Avila, José Asensio, Maria-Carmen Raimondi, Gaëtan Shokouhi, Maryam Rassas, Ilhem Farre, Carole Chaix, Carole Barnier, Vincent Jaffrezic-Renault, Nicole Garrelie, Florence Donnet, Christophe |
author_sort | Bourquard, Florent |
collection | PubMed |
description | Graphene-based materials are widely studied to enable significant improvements in electroanalytical devices requiring new generations of robust, sensitive and low-cost electrodes. In this paper, we present a direct one-step route to synthetize a functional nitrogen-doped graphene film onto a Ni-covered silicon electrode substrate heated at high temperature, by pulsed laser deposition of carbon in the presence of a surrounding nitrogen atmosphere, with no post-deposition transfer of the film. With the ferrocene methanol system, the functionalized electrode exhibits excellent reversibility, close to the theoretical value of 59 mV, and very high sensitivity to hydrogen peroxide oxidation. Our electroanalytical results were correlated with the composition and nanoarchitecture of the N-doped graphene film containing 1.75 at % of nitrogen and identified as a few-layer defected and textured graphene film containing a balanced mixture of graphitic-N and pyrrolic-N chemical functions. The absence of nitrogen dopant in the graphene film considerably degraded some electroanalytical performances. Heat treatment extended beyond the high temperature graphene synthesis did not significantly improve any of the performances. This work contributes to a better understanding of the electrochemical mechanisms of doped graphene-based electrodes obtained by a direct and controlled synthesis process. |
format | Online Article Text |
id | pubmed-6416724 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2019 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-64167242019-03-29 Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing Bourquard, Florent Bleu, Yannick Loir, Anne-Sophie Caja-Munoz, Borja Avila, José Asensio, Maria-Carmen Raimondi, Gaëtan Shokouhi, Maryam Rassas, Ilhem Farre, Carole Chaix, Carole Barnier, Vincent Jaffrezic-Renault, Nicole Garrelie, Florence Donnet, Christophe Materials (Basel) Article Graphene-based materials are widely studied to enable significant improvements in electroanalytical devices requiring new generations of robust, sensitive and low-cost electrodes. In this paper, we present a direct one-step route to synthetize a functional nitrogen-doped graphene film onto a Ni-covered silicon electrode substrate heated at high temperature, by pulsed laser deposition of carbon in the presence of a surrounding nitrogen atmosphere, with no post-deposition transfer of the film. With the ferrocene methanol system, the functionalized electrode exhibits excellent reversibility, close to the theoretical value of 59 mV, and very high sensitivity to hydrogen peroxide oxidation. Our electroanalytical results were correlated with the composition and nanoarchitecture of the N-doped graphene film containing 1.75 at % of nitrogen and identified as a few-layer defected and textured graphene film containing a balanced mixture of graphitic-N and pyrrolic-N chemical functions. The absence of nitrogen dopant in the graphene film considerably degraded some electroanalytical performances. Heat treatment extended beyond the high temperature graphene synthesis did not significantly improve any of the performances. This work contributes to a better understanding of the electrochemical mechanisms of doped graphene-based electrodes obtained by a direct and controlled synthesis process. MDPI 2019-02-23 /pmc/articles/PMC6416724/ /pubmed/30813395 http://dx.doi.org/10.3390/ma12040666 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Bourquard, Florent Bleu, Yannick Loir, Anne-Sophie Caja-Munoz, Borja Avila, José Asensio, Maria-Carmen Raimondi, Gaëtan Shokouhi, Maryam Rassas, Ilhem Farre, Carole Chaix, Carole Barnier, Vincent Jaffrezic-Renault, Nicole Garrelie, Florence Donnet, Christophe Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title | Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title_full | Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title_fullStr | Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title_full_unstemmed | Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title_short | Electroanalytical Performance of Nitrogen-Doped Graphene Films Processed in One Step by Pulsed Laser Deposition Directly Coupled with Thermal Annealing |
title_sort | electroanalytical performance of nitrogen-doped graphene films processed in one step by pulsed laser deposition directly coupled with thermal annealing |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6416724/ https://www.ncbi.nlm.nih.gov/pubmed/30813395 http://dx.doi.org/10.3390/ma12040666 |
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