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나노 구조 물리 연구단
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Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents

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Title
Mesoporous Non-stacked Graphene-receptor Sensor for Detecting Nerve Agents
Author(s)
Hee Min Hwang; Eunhee Hwang; Doyoung Kim; Hyoyoung Lee
Publication Date
2016-09
Journal
SCIENTIFIC REPORTS, v.6, no., pp.33299 -
Publisher
NATURE PUBLISHING GROUP
Abstract
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 © The Author(s) 2016
URI
http://pr.ibs.re.kr/handle/8788114/2870
DOI
10.1038/srep33299
ISSN
2045-2322
Appears in Collections:
Center for Integrated Nanostructure Physics(나노구조물리 연구단) > Journal Papers (저널논문)
Files in This Item:
Mesoporous Non-stacked Graphene receptor Sensor for Detecting Nerve Agentssrep33299 (1).pdfDownload

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