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Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors
Preparation of graphene (GR) based electrode materials with excellent capacitive properties is of great importance to supercapacitors. Herein, we report a facile approach to prepare partially reduced graphite oxide (PRG) nanosheets by reducing graphite oxide (GO) using commercial Cu(2)O powder as a...
Autores principales: | , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
The Royal Society of Chemistry
2018
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9084408/ https://www.ncbi.nlm.nih.gov/pubmed/35547985 http://dx.doi.org/10.1039/c8ra04788j |
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author | Zhang, Juncai Deng, Lingjuan Liu, Zong-huai |
author_facet | Zhang, Juncai Deng, Lingjuan Liu, Zong-huai |
author_sort | Zhang, Juncai |
collection | PubMed |
description | Preparation of graphene (GR) based electrode materials with excellent capacitive properties is of great importance to supercapacitors. Herein, we report a facile approach to prepare partially reduced graphite oxide (PRG) nanosheets by reducing graphite oxide (GO) using commercial Cu(2)O powder as a reduction agent, moreover, we demonstrate that the PRG nanosheets can act as building blocks for assembling hydrogels (PRGH) and flexible film (PRGF). The obtained PRGH and PRGF can be directly used as binder-free electrodes for supercapacitors and give high specific capacitance (292 and 273 F g(−1) at a current density of 0.5 A g(−1) in a three-electrode system, respectively) due to the existence of oxygen-containing functional groups in PRG nanosheets. PRG also gives excellent rate ability and cycle stability. This study suggests a facile pathway to produce GR-based materials with excellent capacitive properties and is meaningful for flexible supercapacitors. |
format | Online Article Text |
id | pubmed-9084408 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2018 |
publisher | The Royal Society of Chemistry |
record_format | MEDLINE/PubMed |
spelling | pubmed-90844082022-05-10 Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors Zhang, Juncai Deng, Lingjuan Liu, Zong-huai RSC Adv Chemistry Preparation of graphene (GR) based electrode materials with excellent capacitive properties is of great importance to supercapacitors. Herein, we report a facile approach to prepare partially reduced graphite oxide (PRG) nanosheets by reducing graphite oxide (GO) using commercial Cu(2)O powder as a reduction agent, moreover, we demonstrate that the PRG nanosheets can act as building blocks for assembling hydrogels (PRGH) and flexible film (PRGF). The obtained PRGH and PRGF can be directly used as binder-free electrodes for supercapacitors and give high specific capacitance (292 and 273 F g(−1) at a current density of 0.5 A g(−1) in a three-electrode system, respectively) due to the existence of oxygen-containing functional groups in PRG nanosheets. PRG also gives excellent rate ability and cycle stability. This study suggests a facile pathway to produce GR-based materials with excellent capacitive properties and is meaningful for flexible supercapacitors. The Royal Society of Chemistry 2018-08-14 /pmc/articles/PMC9084408/ /pubmed/35547985 http://dx.doi.org/10.1039/c8ra04788j Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by-nc/3.0/ |
spellingShingle | Chemistry Zhang, Juncai Deng, Lingjuan Liu, Zong-huai Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title | Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title_full | Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title_fullStr | Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title_full_unstemmed | Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title_short | Facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
title_sort | facile preparation of partially reduced graphite oxide nanosheets as a binder-free electrode for supercapacitors |
topic | Chemistry |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9084408/ https://www.ncbi.nlm.nih.gov/pubmed/35547985 http://dx.doi.org/10.1039/c8ra04788j |
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