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Glycol-Thermal Continuous Flow Synthesis of Graphene Gel
[Image: see text] Hydrothermal treatment of graphene oxide (GO) aqueous dispersion has been extensively applied to create graphene (a.k.a., chemically modified graphene, or reduced GO) hydrogels, which were dried to yield high-density graphene monoliths and powders with promising potential for elect...
Autores principales: | , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Chemical Society
2021
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Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8319937/ https://www.ncbi.nlm.nih.gov/pubmed/34337205 http://dx.doi.org/10.1021/acsomega.1c02589 |
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author | Prestowitz, Luke C.O. Huang, Jiaxing |
author_facet | Prestowitz, Luke C.O. Huang, Jiaxing |
author_sort | Prestowitz, Luke C.O. |
collection | PubMed |
description | [Image: see text] Hydrothermal treatment of graphene oxide (GO) aqueous dispersion has been extensively applied to create graphene (a.k.a., chemically modified graphene, or reduced GO) hydrogels, which were dried to yield high-density graphene monoliths and powders with promising potential for electrochemical energy storage applications. Here, we demonstrated a glycol-thermal route that allows the preparation of a graphene gel at around 150 °C, which is below the boiling point of ethylene glycol (EG) and thus eliminates the need for a sealed pressurized reaction vessel. As a result, flow synthesis can be achieved by flowing a GO dispersion in EG through a Teflon tube immersed in a preheated oil bath for continuous production of a graphene gel, which, upon drying, shrinks to yield a densified graphene solid. |
format | Online Article Text |
id | pubmed-8319937 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | MEDLINE/PubMed |
spelling | pubmed-83199372021-07-30 Glycol-Thermal Continuous Flow Synthesis of Graphene Gel Prestowitz, Luke C.O. Huang, Jiaxing ACS Omega [Image: see text] Hydrothermal treatment of graphene oxide (GO) aqueous dispersion has been extensively applied to create graphene (a.k.a., chemically modified graphene, or reduced GO) hydrogels, which were dried to yield high-density graphene monoliths and powders with promising potential for electrochemical energy storage applications. Here, we demonstrated a glycol-thermal route that allows the preparation of a graphene gel at around 150 °C, which is below the boiling point of ethylene glycol (EG) and thus eliminates the need for a sealed pressurized reaction vessel. As a result, flow synthesis can be achieved by flowing a GO dispersion in EG through a Teflon tube immersed in a preheated oil bath for continuous production of a graphene gel, which, upon drying, shrinks to yield a densified graphene solid. American Chemical Society 2021-07-14 /pmc/articles/PMC8319937/ /pubmed/34337205 http://dx.doi.org/10.1021/acsomega.1c02589 Text en © 2021 The Authors. Published by American Chemical Society Permits non-commercial access and re-use, provided that author attribution and integrity are maintained; but does not permit creation of adaptations or other derivative works (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
spellingShingle | Prestowitz, Luke C.O. Huang, Jiaxing Glycol-Thermal Continuous Flow Synthesis of Graphene Gel |
title | Glycol-Thermal Continuous Flow Synthesis of Graphene
Gel |
title_full | Glycol-Thermal Continuous Flow Synthesis of Graphene
Gel |
title_fullStr | Glycol-Thermal Continuous Flow Synthesis of Graphene
Gel |
title_full_unstemmed | Glycol-Thermal Continuous Flow Synthesis of Graphene
Gel |
title_short | Glycol-Thermal Continuous Flow Synthesis of Graphene
Gel |
title_sort | glycol-thermal continuous flow synthesis of graphene
gel |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8319937/ https://www.ncbi.nlm.nih.gov/pubmed/34337205 http://dx.doi.org/10.1021/acsomega.1c02589 |
work_keys_str_mv | AT prestowitzlukeco glycolthermalcontinuousflowsynthesisofgraphenegel AT huangjiaxing glycolthermalcontinuousflowsynthesisofgraphenegel |