Graphene-Fe3O4/PIL-PEDOT for the design of sensitive and stable quantum chemo-resistive VOC sensors

Tran Thanh Tung, Mickaël Castro, Isabelle Pillin, Tae Young Kim, Kwang Suck Suh, Jean Francois Feller

Research output: Contribution to journalArticle

42 Citations (Scopus)

Abstract

Quantum chemo-resistive vapour sensors have been synthesised from the assembly of magnetic nanoparticles-decorated reduced graphene oxide (Fe 3O4-RGO) with poly(3,4-ethylene dioxythiophene) (PEDOT) and poly(ionic liquid) (PIL). This new hybrid sensing material demonstrated enhanced sensitivity, selectivity, signal-to-noise ratio and reduced response time compared to its elementary constituents (also sensitive), which suggests that a positive synergy of properties has been reached through the structuring of the conducting architecture by spray layer-by-layer. The Fe3O 4-RGO/PIL-PEDOT sensor exhibited stable and reproducible signals at room temperature for both polar (ethanol, methanol, acetone, water) and non-polar (chloroform, styrene, dichlorobenzene, toluene) volatile organic compounds (VOC), considered as food degradation biomarkers. Since sensor's responses are still well defined at the ppm level (and may be even at the subppm level) as attested by a SNR around 10, an application such smart packaging could be envisaged.

Original languageEnglish
Pages (from-to)104-112
Number of pages9
JournalCarbon
Volume74
DOIs
Publication statusPublished - 2014 Jan 1

Fingerprint

Ionic Liquids
Volatile Organic Compounds
Graphite
Sensors
Styrene
Toluene
Biomarkers
Chloroform
Acetone
Oxides
Methanol
Signal to noise ratio
Packaging
Ethanol
Vapors
Nanoparticles
Degradation
Water
poly(3,4-ethylene dioxythiophene)
Temperature

ASJC Scopus subject areas

  • Chemistry(all)

Cite this

Graphene-Fe3O4/PIL-PEDOT for the design of sensitive and stable quantum chemo-resistive VOC sensors. / Tung, Tran Thanh; Castro, Mickaël; Pillin, Isabelle; Kim, Tae Young; Suh, Kwang Suck; Feller, Jean Francois.

In: Carbon, Vol. 74, 01.01.2014, p. 104-112.

Research output: Contribution to journalArticle

Tung, Tran Thanh ; Castro, Mickaël ; Pillin, Isabelle ; Kim, Tae Young ; Suh, Kwang Suck ; Feller, Jean Francois. / Graphene-Fe3O4/PIL-PEDOT for the design of sensitive and stable quantum chemo-resistive VOC sensors. In: Carbon. 2014 ; Vol. 74. pp. 104-112.
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