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In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method

Novel carbon nanostructures, carbon nanobuds and nanoballs in situ grown on graphene, have been synthesized by the electrochemical method in this study. Pristine graphene (GR) sheets were potentiostatic treated with sulfuric acid and were oxidized at 1.4–2.0 V constant potentials to obtain numerous...

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Autores principales: Qin, Qi, Chen, Jing, Wu, Changze, Wang, Yixue, Li, Yunan, Song, Meng
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Royal Society of Chemistry 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9204834/
https://www.ncbi.nlm.nih.gov/pubmed/35800314
http://dx.doi.org/10.1039/d2ra01695h
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author Qin, Qi
Chen, Jing
Wu, Changze
Wang, Yixue
Li, Yunan
Song, Meng
author_facet Qin, Qi
Chen, Jing
Wu, Changze
Wang, Yixue
Li, Yunan
Song, Meng
author_sort Qin, Qi
collection PubMed
description Novel carbon nanostructures, carbon nanobuds and nanoballs in situ grown on graphene, have been synthesized by the electrochemical method in this study. Pristine graphene (GR) sheets were potentiostatic treated with sulfuric acid and were oxidized at 1.4–2.0 V constant potentials to obtain numerous nanobuds and peeled nanoballs. Scanning electron microscopy was used to determine the morphology of electrochemically treated GR nanosheets. Fourier transform infrared, X-ray diffraction analysis, and Raman spectroscopy were used to characterize the structure of samples. The above results indicate that amounts of nanobuds were in situ grown on the surface of GR sheets at a constant potential of 1.4 V was added to the GR electrode. With the constant potential increasing, the nanobuds grew into the nanoballs, exfoliating from the surface of graphene sheets, whereas the peroxidation of graphene sheets occurred at a higher potential of 2.0 V, leading to the formation of a large amount of graphene oxide fragments. Therefore, the optimal processing parameter of the formation of carbon nanoballs was under the constant potential of 1.8 V for 500 s.
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spelling pubmed-92048342022-07-06 In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method Qin, Qi Chen, Jing Wu, Changze Wang, Yixue Li, Yunan Song, Meng RSC Adv Chemistry Novel carbon nanostructures, carbon nanobuds and nanoballs in situ grown on graphene, have been synthesized by the electrochemical method in this study. Pristine graphene (GR) sheets were potentiostatic treated with sulfuric acid and were oxidized at 1.4–2.0 V constant potentials to obtain numerous nanobuds and peeled nanoballs. Scanning electron microscopy was used to determine the morphology of electrochemically treated GR nanosheets. Fourier transform infrared, X-ray diffraction analysis, and Raman spectroscopy were used to characterize the structure of samples. The above results indicate that amounts of nanobuds were in situ grown on the surface of GR sheets at a constant potential of 1.4 V was added to the GR electrode. With the constant potential increasing, the nanobuds grew into the nanoballs, exfoliating from the surface of graphene sheets, whereas the peroxidation of graphene sheets occurred at a higher potential of 2.0 V, leading to the formation of a large amount of graphene oxide fragments. Therefore, the optimal processing parameter of the formation of carbon nanoballs was under the constant potential of 1.8 V for 500 s. The Royal Society of Chemistry 2022-06-17 /pmc/articles/PMC9204834/ /pubmed/35800314 http://dx.doi.org/10.1039/d2ra01695h Text en This journal is © The Royal Society of Chemistry https://creativecommons.org/licenses/by/3.0/
spellingShingle Chemistry
Qin, Qi
Chen, Jing
Wu, Changze
Wang, Yixue
Li, Yunan
Song, Meng
In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title_full In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title_fullStr In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title_full_unstemmed In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title_short In situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
title_sort in situ growth of novel carbon nanobuds and nanoballs on graphene nanosheets by the electrochemical method
topic Chemistry
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9204834/
https://www.ncbi.nlm.nih.gov/pubmed/35800314
http://dx.doi.org/10.1039/d2ra01695h
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