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...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2021-01-01
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| Series: | npj 2D Materials and Applications |
| Online Access: | https://doi.org/10.1038/s41699-020-00185-x |
| _version_ | 1818751910663946240 |
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| 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 |
| collection | DOAJ |
| 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. |
| first_indexed | 2024-12-18T04:43:05Z |
| format | Article |
| id | doaj.art-b38df131564d4af3a8c320262e3c5f17 |
| institution | Directory Open Access Journal |
| issn | 2397-7132 |
| language | English |
| last_indexed | 2024-12-18T04:43:05Z |
| publishDate | 2021-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj 2D Materials and Applications |
| spelling | doaj.art-b38df131564d4af3a8c320262e3c5f172022-12-21T21:20:40ZengNature Portfolionpj 2D Materials and Applications2397-71322021-01-015111010.1038/s41699-020-00185-xFacilely synthesized nitrogen-doped reduced graphene oxide functionalized with copper ions as electrocatalyst for oxygen reductionNadia Garino0Juqin Zeng1Micaela Castellino2Adriano Sacco3Francesca Risplendi4Michele Re Fiorentin5Katarzyna Bejtka6Angelica Chiodoni7Damien Salomon8Jaime Segura-Ruiz9Candido F. Pirri10Giancarlo Cicero11Applied Science and Technology Department, Politecnico di TorinoCenter for Sustainable Future Technologies @Polito, Istituto Italiano di TecnologiaApplied Science and Technology Department, Politecnico di TorinoCenter for Sustainable Future Technologies @Polito, Istituto Italiano di TecnologiaApplied Science and Technology Department, Politecnico di TorinoCenter for Sustainable Future Technologies @Polito, Istituto Italiano di TecnologiaCenter for Sustainable Future Technologies @Polito, Istituto Italiano di TecnologiaCenter for Sustainable Future Technologies @Polito, Istituto Italiano di TecnologiaESRF – The European SynchrotronESRF – The European SynchrotronApplied Science and Technology Department, Politecnico di TorinoApplied Science and Technology Department, Politecnico di TorinoAbstract 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.https://doi.org/10.1038/s41699-020-00185-x |
| spellingShingle | 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 npj 2D Materials and Applications |
| title | 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_short | 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 |
| url | https://doi.org/10.1038/s41699-020-00185-x |
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