Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents

A novel gas sensor consisting of porous, non-stacked reduced graphene oxide (NSrGO)-heaxfluorohydoroxypropanyl benzene (HFHPB) nanosheets was successfully fabricated, allowing the detection of dimethyl methyl phosphonate (DMMP), similar to sarin toxic gas. The HFHPB group was chemically grafted to t...

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Detalles Bibliográficos
Autores principales: Hwang, Hee Min, Hwang, Eunhee, Kim, Doyoung, Lee, Hyoyoung
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2016
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5022036/
https://www.ncbi.nlm.nih.gov/pubmed/27624664
http://dx.doi.org/10.1038/srep33299
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author Hwang, Hee Min
Hwang, Eunhee
Kim, Doyoung
Lee, Hyoyoung
author_facet Hwang, Hee Min
Hwang, Eunhee
Kim, Doyoung
Lee, Hyoyoung
author_sort Hwang, Hee Min
collection PubMed
description A novel gas sensor consisting of porous, non-stacked reduced graphene oxide (NSrGO)-heaxfluorohydoroxypropanyl benzene (HFHPB) nanosheets was successfully fabricated, allowing the detection of dimethyl methyl phosphonate (DMMP), similar to sarin toxic gas. The HFHPB group was chemically grafted to the NSrGO via a diazotization reaction to produce NSrGO-HFHPB. The NSrGO-HFHPB 3D film has a mesoporous structure with a large pore volume and high surface area that can sensitively detect DMMP and concurrently selectively signal the DMMP through the chemically-attached HFHPB. The DMMP uptake of the mesoporous NSrGO-HFHPB was 240.03 Hz, 12 times greater than that of rGO-HFHPB (20.14 Hz). In addition, the response rate of NSrGO-HFHPB was faster than that of rGO-HFHPB, an approximately 3 times more rapid recovery due to the mesoporous structure of the NSrGO-HFHPB. The NSrGO-HFHPB sensor exhibited long-term stability due to the use of robust carbon and resulting high resistance to humidity.
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spelling pubmed-50220362016-09-20 Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents Hwang, Hee Min Hwang, Eunhee Kim, Doyoung Lee, Hyoyoung Sci Rep Article A novel gas sensor consisting of porous, non-stacked reduced graphene oxide (NSrGO)-heaxfluorohydoroxypropanyl benzene (HFHPB) nanosheets was successfully fabricated, allowing the detection of dimethyl methyl phosphonate (DMMP), similar to sarin toxic gas. The HFHPB group was chemically grafted to the NSrGO via a diazotization reaction to produce NSrGO-HFHPB. The NSrGO-HFHPB 3D film has a mesoporous structure with a large pore volume and high surface area that can sensitively detect DMMP and concurrently selectively signal the DMMP through the chemically-attached HFHPB. The DMMP uptake of the mesoporous NSrGO-HFHPB was 240.03 Hz, 12 times greater than that of rGO-HFHPB (20.14 Hz). In addition, the response rate of NSrGO-HFHPB was faster than that of rGO-HFHPB, an approximately 3 times more rapid recovery due to the mesoporous structure of the NSrGO-HFHPB. The NSrGO-HFHPB sensor exhibited long-term stability due to the use of robust carbon and resulting high resistance to humidity. Nature Publishing Group 2016-09-14 /pmc/articles/PMC5022036/ /pubmed/27624664 http://dx.doi.org/10.1038/srep33299 Text en Copyright © 2016, The Author(s) http://creativecommons.org/licenses/by/4.0/ This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
spellingShingle Article
Hwang, Hee Min
Hwang, Eunhee
Kim, Doyoung
Lee, Hyoyoung
Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title_full Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title_fullStr Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title_full_unstemmed Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title_short Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
title_sort mesoporous non-stacked graphene-receptor sensor for detecting nerve agents
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5022036/
https://www.ncbi.nlm.nih.gov/pubmed/27624664
http://dx.doi.org/10.1038/srep33299
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