Sensitive and selective acetone sensor based on Gd doped WO3/reduced graphene oxide nanocomposite

Kaur, Jasmeet; Anand, Kanika; Kaur, Amanpreet; Singh, Ravi Chand

doi:10.1016/j.snb.2017.11.159

Cited by 90 publications

(25 citation statements)

References 65 publications

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“…[108] When compared with the adsorption by these molecules like CH 3 OH, CH 3 SH, H 2 O, H 2 S, and molecular halogens on the surface of graphene (G), 2S-doped graphene, and S-doped graphene (SG), [109] it has been seen that SG acts as an efficient adsorbent and when compared to other molecules, molecular halogens adsorb better and also the Sn-doped and Ti-doped double vacancy zigzag shaped GNR more sensitive and specific toward H 2 S. [110] Formaldehyde adsorption studies on graphene modified with different doping molecules like N, B, S were used for the detection of formaldehyde and also inferred that vacancy-defected graphene is a wonderful option for the specific sensing of formaldehyde. [111] Other devices for sensing gases like NO 2 sensing, [112,113] NH 3 sensing, [114][115][116][117] volatile organic compounds (NH 3, MeOH, EtOH, and H 2 O), [118] ethanol sensing, [119,120] acetone sensing, [121,122] CO sensing, [123] H 2 S sensing, [124,125] formaldehyde sensing, [126,127] and NO 2 sensing have been reported. [117,[128][129][130] Many reviews have explorated the different gas sensing mechanisms based on graphene oxide.…”

Section: Graphene-based Gas Sensorsmentioning

confidence: 99%

Graphene and Graphene‐Based Materials in Biomedical Science

Swetha

Manisha

Prasad

2018

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Graphene and its composite materials are very important in many disciplines of science and have been used enormously by researchers since their discovery in 2004. These are a new group of compounds, and are also wonderful model systems for quantum behavior studies. Their properties like exceptional conductivity, biocompatibility, surface area, mechanical strength, and thermal properties make them rising stars in the scientific community. Graphene and its composite compounds are utilized widely in different medical applications, for example, biosensing of biological compounds responsible for disease development, bioimaging of various cells, tissues, microorganisms, animal models, etc. In addition, they are used for enhancing and supporting the stem cell differentiation, i.e., regenerative medicine for regeneration studies of various human organs, tissue engineering in biology for the development of carrier materials, as well as in bone reformation. This review focuses on the modification procedure involved in the fabrication of graphene‐based biomaterials for various applications and recent developments in research related to graphene and graphene‐based materials in biosensing, optical sensing, gas sensing, drug, gene, protein delivery, tissue engineering, and bioimaging. In addition, the potential toxicological effects of graphene‐based biomaterials are discussed.

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Section: Graphene-based Gas Sensorsmentioning

confidence: 99%

Graphene and Graphene‐Based Materials in Biomedical Science

Swetha

Manisha

Prasad

2018

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“…Acetone is the preferred chemical reagent in industries for tissue dehydration, paraffin purication, and plastic dissolution. 1 According to the Occupational Safety and Health Administration (OSHA), the human permissible exposure level towards acetone is 1000 ppm as a general industrial standard. 2 The National Institute for Occupational Safety and Health (NIOSH) reported the recommended exposure level of acetone as 250 ppm as a time-weighted average.…”

Section: Introductionmentioning

confidence: 99%

Development of an acetone sensor using nanostructured Co₃O₄ thin films for exhaled breath analysis

et al. 2019

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“…rGO provides more adsorption sites, larger specific areas, and high conductivity to enhance the gas sensing capability. Kaur et al [ 19 ] investigated the influence of temperature on selective detection of hydrogen and acetone based on WO 3 /rGO nanocomposites and found that the introduction of rGO reduced the optimal temperature. Shi et al [ 20 ] investigated H 2 S sensing by employing reduced graphene oxide/hexagonal WO 3 nanosheet composites.…”

Section: Introductionmentioning

confidence: 99%

High Performance Acetylene Sensor with Heterostructure Based on WO3 Nanolamellae/Reduced Graphene Oxide (rGO) Nanosheets Operating at Low Temperature

et al. 2018

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The development of functionalized metal oxide/reduced graphene oxide (rGO) hybrid nanocomposites concerning power equipment failure diagnosis is one of the most recent topics. In this work, WO3 nanolamellae/reduced graphene oxide (rGO) nanocomposites with different contents of GO (0.5 wt %, 1 wt %, 2 wt %, 4 wt %) were synthesized via controlled hydrothermal method. X-ray diffraction (XRD), transmission electron microscopy (TEM), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), thermogravimetric analyses-derivative thermogravimetric analysis-differential scanning calorimetry (TG-DTG-DSC), BET, and photoluminescence (PL) spectroscopy were utilized to investigate morphological characterizations of prepared gas sensing materials and indicated that high quality WO3 nanolamellae were widely distributed among graphene sheets. Experimental ceramic planar gas sensors composing of interdigitated alumina substrates, Au electrodes, and RuO2 heating layer were coated with WO3 nanolamellae/reduced graphene oxide (rGO) films by spin-coating technique and then tested for gas sensing towards multi-concentrations of acetylene (C2H2) gases in a carrier gas with operating temperature ranging from 50 °C to 400 °C. Among four contents of prepared samples, sensing materials with 1 wt % GO nanocomposite exhibited the best C2H2 sensing performance with lower optimal working temperature (150 °C), higher sensor response (15.0 toward 50 ppm), faster response-recovery time (52 s and 27 s), lower detection limitation (1.3 ppm), long-term stability, and excellent repeatability. The gas sensing mechanism for enhanced sensing performance of nanocomposite is possibly attributed to the formation of p-n heterojunction and the active interaction between WO3 nanolamellae and rGO sheets. Besides, the introduction of rGO nanosheets leads to the impurity of synthesized materials, which creates more defects and promotes larger specific area for gas adsorption, outstanding conductivity, and faster carrier transport. The superior gas sensing properties of WO3/rGO based gas sensor may contribute to the development of a high-performance ppm-level gas sensor for the online monitoring of dissolved C2H2 gas in large-scale transformer oil.

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Sensitive and selective acetone sensor based on Gd doped WO3/reduced graphene oxide nanocomposite

Cited by 90 publications

References 65 publications

Graphene and Graphene‐Based Materials in Biomedical Science

Graphene and Graphene‐Based Materials in Biomedical Science

Development of an acetone sensor using nanostructured Co₃O₄ thin films for exhaled breath analysis

High Performance Acetylene Sensor with Heterostructure Based on WO3 Nanolamellae/Reduced Graphene Oxide (rGO) Nanosheets Operating at Low Temperature

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Sensitive and selective acetone sensor based on Gd doped WO3/reduced graphene oxide nanocomposite

Cited by 90 publications

References 65 publications

Graphene and Graphene‐Based Materials in Biomedical Science

Graphene and Graphene‐Based Materials in Biomedical Science

Development of an acetone sensor using nanostructured Co3O4 thin films for exhaled breath analysis

High Performance Acetylene Sensor with Heterostructure Based on WO3 Nanolamellae/Reduced Graphene Oxide (rGO) Nanosheets Operating at Low Temperature

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Development of an acetone sensor using nanostructured Co₃O₄ thin films for exhaled breath analysis