Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction
A graphene oxide aerogel (GOA) was formed inside a melamine sponge (MS) framework. After reduction with hydrazine at 60 °C, the electrical conductive nitrogen-enriched rGOA-MS composite material with a specific density of 20.1 mg/cm<sup>3</sup> was used to fabricate an electrode, which p...
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| Online Access: | https://www.mdpi.com/1996-1944/14/2/322 |
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| author | Roman A. Manzhos Sergey A. Baskakov Evgeny N. Kabachkov Vitaly I. Korepanov Nadezhda N. Dremova Yulia V. Baskakova Alexander G. Krivenko Yury M. Shulga Gennady L. Gutsev |
| author_facet | Roman A. Manzhos Sergey A. Baskakov Evgeny N. Kabachkov Vitaly I. Korepanov Nadezhda N. Dremova Yulia V. Baskakova Alexander G. Krivenko Yury M. Shulga Gennady L. Gutsev |
| author_sort | Roman A. Manzhos |
| collection | DOAJ |
| description | A graphene oxide aerogel (GOA) was formed inside a melamine sponge (MS) framework. After reduction with hydrazine at 60 °C, the electrical conductive nitrogen-enriched rGOA-MS composite material with a specific density of 20.1 mg/cm<sup>3</sup> was used to fabricate an electrode, which proved to be a promising electrocatalyst for the oxygen reduction reaction. The rGOA-MS composite material was characterized by elemental analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. It was found that nitrogen in the material is presented by different types with the maximum concentration of pyrrole-like nitrogen. By using Raman scattering it was established that the rGOA component of the material is graphene-like carbon with an average size of the sp<sup>2</sup>-domains of 5.7 nm. This explains a quite high conductivity of the composite obtained. |
| first_indexed | 2024-03-09T05:23:16Z |
| format | Article |
| id | doaj.art-773dee2066c54c7abface439e8cddd55 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T05:23:16Z |
| publishDate | 2021-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-773dee2066c54c7abface439e8cddd552023-12-03T12:38:35ZengMDPI AGMaterials1996-19442021-01-0114232210.3390/ma14020322Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction ReactionRoman A. Manzhos0Sergey A. Baskakov1Evgeny N. Kabachkov2Vitaly I. Korepanov3Nadezhda N. Dremova4Yulia V. Baskakova5Alexander G. Krivenko6Yury M. Shulga7Gennady L. Gutsev8Institute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Microelectronics Technology and High Purity Materials, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaInstitute of Problems of Chemical Physics, Russian Academy of Sciences, 142432 Chernogolovka, RussiaDepartment of Physics, Florida A&M University, Tallahassee, FL 32307, USAA graphene oxide aerogel (GOA) was formed inside a melamine sponge (MS) framework. After reduction with hydrazine at 60 °C, the electrical conductive nitrogen-enriched rGOA-MS composite material with a specific density of 20.1 mg/cm<sup>3</sup> was used to fabricate an electrode, which proved to be a promising electrocatalyst for the oxygen reduction reaction. The rGOA-MS composite material was characterized by elemental analysis, scanning electron microscopy, X-ray photoelectron spectroscopy, and Raman spectroscopy. It was found that nitrogen in the material is presented by different types with the maximum concentration of pyrrole-like nitrogen. By using Raman scattering it was established that the rGOA component of the material is graphene-like carbon with an average size of the sp<sup>2</sup>-domains of 5.7 nm. This explains a quite high conductivity of the composite obtained.https://www.mdpi.com/1996-1944/14/2/322reduced graphene oxide aerogelmelamine spongeoxygen reduction reactionlyophilizationcomposite materiallinear sweep voltammetry |
| spellingShingle | Roman A. Manzhos Sergey A. Baskakov Evgeny N. Kabachkov Vitaly I. Korepanov Nadezhda N. Dremova Yulia V. Baskakova Alexander G. Krivenko Yury M. Shulga Gennady L. Gutsev Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction Materials reduced graphene oxide aerogel melamine sponge oxygen reduction reaction lyophilization composite material linear sweep voltammetry |
| title | Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction |
| title_full | Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction |
| title_fullStr | Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction |
| title_full_unstemmed | Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction |
| title_short | Reduced Graphene Oxide Aerogel inside Melamine Sponge as an Electrocatalyst for the Oxygen Reduction Reaction |
| title_sort | reduced graphene oxide aerogel inside melamine sponge as an electrocatalyst for the oxygen reduction reaction |
| topic | reduced graphene oxide aerogel melamine sponge oxygen reduction reaction lyophilization composite material linear sweep voltammetry |
| url | https://www.mdpi.com/1996-1944/14/2/322 |
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