Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction

Abstract Nitrogen-doped reduced graphene oxide is successfully synthesized and functionalized with hydroxylated copper ions via one-pot microwave-assisted route. The presence of cationic Cu coordinated to the graphene layer is fully elucidated through a set of experimental characterizations and theo...

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Autores principales:	Nadia Garino, Juqin Zeng, Micaela Castellino, Adriano Sacco, Francesca Risplendi, Michele Re Fiorentin, Katarzyna Bejtka, Angelica Chiodoni, Damien Salomon, Jaime Segura-Ruiz, Candido F. Pirri, Giancarlo Cicero
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
Acceso en línea:	https://doaj.org/article/b38df131564d4af3a8c320262e3c5f17
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spelling	oai:doaj.org-article:b38df131564d4af3a8c320262e3c5f172021-12-02T14:40:26ZFacilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction10.1038/s41699-020-00185-x2397-7132https://doaj.org/article/b38df131564d4af3a8c320262e3c5f172021-01-01T00:00:00Zhttps://doi.org/10.1038/s41699-020-00185-xhttps://doaj.org/toc/2397-7132Abstract Nitrogen-doped reduced graphene oxide is successfully synthesized and functionalized with hydroxylated copper ions via one-pot microwave-assisted route. The presence of cationic Cu coordinated to the graphene layer is fully elucidated through a set of experimental characterizations and theoretical calculations. Thanks to the presence of these hydroxyl-coordinated Cu2+ active sites, the proposed material shows good electrocatalytic performance for the oxygen reduction reaction, as evidenced by an electron transfer number of almost 4 and by high onset and half-wave potentials of 0.91 V and 0.78 V vs. the reversible hydrogen electrode, respectively. In addition, the N-doped Cu-functionalized graphene displays a superior current retention with respect to a commercial Pt/C catalyst during the stability test, implying its potential implementation in high-performance fuel cells and metal-air batteries.Nadia GarinoJuqin ZengMicaela CastellinoAdriano SaccoFrancesca RisplendiMichele Re FiorentinKatarzyna BejtkaAngelica ChiodoniDamien SalomonJaime Segura-RuizCandido F. PirriGiancarlo CiceroNature PortfolioarticleMaterials of engineering and construction. Mechanics of materialsTA401-492ChemistryQD1-999ENnpj 2D Materials and Applications, Vol 5, Iss 1, Pp 1-10 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999
spellingShingle	Materials of engineering and construction. Mechanics of materials TA401-492 Chemistry QD1-999 Nadia Garino Juqin Zeng Micaela Castellino Adriano Sacco Francesca Risplendi Michele Re Fiorentin Katarzyna Bejtka Angelica Chiodoni Damien Salomon Jaime Segura-Ruiz Candido F. Pirri Giancarlo Cicero Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
description	Abstract Nitrogen-doped reduced graphene oxide is successfully synthesized and functionalized with hydroxylated copper ions via one-pot microwave-assisted route. The presence of cationic Cu coordinated to the graphene layer is fully elucidated through a set of experimental characterizations and theoretical calculations. Thanks to the presence of these hydroxyl-coordinated Cu2+ active sites, the proposed material shows good electrocatalytic performance for the oxygen reduction reaction, as evidenced by an electron transfer number of almost 4 and by high onset and half-wave potentials of 0.91 V and 0.78 V vs. the reversible hydrogen electrode, respectively. In addition, the N-doped Cu-functionalized graphene displays a superior current retention with respect to a commercial Pt/C catalyst during the stability test, implying its potential implementation in high-performance fuel cells and metal-air batteries.
format	article
author	Nadia Garino Juqin Zeng Micaela Castellino Adriano Sacco Francesca Risplendi Michele Re Fiorentin Katarzyna Bejtka Angelica Chiodoni Damien Salomon Jaime Segura-Ruiz Candido F. Pirri Giancarlo Cicero
author_facet	Nadia Garino Juqin Zeng Micaela Castellino Adriano Sacco Francesca Risplendi Michele Re Fiorentin Katarzyna Bejtka Angelica Chiodoni Damien Salomon Jaime Segura-Ruiz Candido F. Pirri Giancarlo Cicero
author_sort	Nadia Garino
title	Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
title_short	Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
title_full	Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
title_fullStr	Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
title_full_unstemmed	Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
title_sort	facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/b38df131564d4af3a8c320262e3c5f17
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Facilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reduction

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