Design and fabrication of zinc oxide-graphene nanocomposite for gas sensing applications

Photaram, Worachote; Liangruksa, Monrudee; Aiempanakit, Montri; Suwanchawalit, Cheewita; Wisitsoraat, Anurat; Sukunta, J.; Laksee, Sakchai; Siriwong, Chawarat

doi:10.1016/j.apsusc.2022.153510

Cited by 13 publications

(6 citation statements)

References 78 publications

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“…The n-type semiconductor ZnO has received attention due to its low cost and fast response speed, which can detect a variety of gases [17,18,127]. Among the recent reports, NiO-and ZnO-combined sensors have the most detection of ethanol.…”

Section: Metal Oxidesmentioning

confidence: 99%

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NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Zeng

2022

Journal of Sensors

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In this review, we summarized the state-of-the-art progress on the ethanol performance of NiO by means of morphology, doping, loading noble metal particles, and forming heterojunctions. We first introduced the effect of modulating NiO morphology on ethanol performance that has been reported in recent years. The morphology with large specific surface area and high porosity was considered to be the one that can bring high gas response. Then, we discussed the enhanced effect of the doping of metal cations and noble metal particle loading on the ethanol-sensitive properties of NiO. Doping ions increased the ground-state resistance and increased the oxygen defect concentration of NiO. The effects of noble metal particles on the performance of NiO included chemical sensitization and electronic sensitization. Finally, the related contents of NiO forming complexes with metal oxides and bimetallic oxides were discussed. In this section, the specific improvement mechanism was discussed first, and then, the related work of researchers in recent years was summarized. At the same time, we presented a reasonable outlook for NiO-based ethanol sensors, imagining future directions.

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Section: Metal Oxidesmentioning

confidence: 99%

“…Metal oxide semiconductors (MOS) have special electrical conductivity, good stability, and high gas response [13][14][15]. ZnO [16][17][18], SnO 2 [19][20][21], NiO [22,23], WO 3 [24][25][26],…”

Section: Introductionmentioning

confidence: 99%

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Zeng

2022

Journal of Sensors

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“…Also, Polypyrrole (PPy) [52] has been explored for the detection of VOCs and CNTs as amino acids detector [53]. Furthermore, the experimental study of zinc oxide-graphene nanocomposite for gas sensing applications was also conducted [54]. Similarly, Salimi m et al [55].…”

Section: Introductionmentioning

confidence: 99%

Pristine and modified silicene based volatile organic compound toxic gas sensor: a first principles study

Showket,

Shah,

Dar

2023

Phys. Scr.

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In this work, we have investigated the sensitivity of two Volatile Organic Compounds (VOCs), formaldehyde (FD) and acetaldehyde (AD) on the surface of two-dimensional (2D) Armchair Silicene Nanoribbon (ASiNR) by analysing the structural, electronic and transport properties using density functional theory (DFT) and non-equilibrium Green's function (NEGF) formalism. Different models of ASiNR have been considered viz; pristine, Al-doped, P-doped, Al/P co-doped and vacancy-defected ASiNR. The findings revealed that the vacancy-defected models shows a significant increase in the adsorption energies for both VOCs compared to other models. Apart from that, in all the models, the current increases with the applied voltage and the maximum value of current was found in Al/P co-doped model at a higher bias voltage of 2 V. The variation of the computed transmission spectrum peaks from -2 to 2 eV of energy values also confirms the sensitivity of the proposed models towards the VOC molecules. Moreover, the projected device density of states (PDDOS) revealed that all the models remain semiconducting before and after adsorption, which completely agrees with the transmission spectrum. Furthermore, Al/P co-doped model shows high sensitivity of 68% and77% towards FD and AD molecules respectively. Thus, it is concluded that the modeled ASiNR VOC gas sensors will aid in sensing cancer.

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“…The results demonstrated that graphene doped with metal atoms owns better response characteristics than that of pristine graphene, and shows better selectivity and gas sensitivity [24–26]. The ZnO‐graphene prepared by Photaram et al possesses high gas sensitive response to ethanol gas, which proves that ZnO‐graphene can be used in the design and manufacture of high sensitivity ethanol gas sensor [27]. Tayyab et al found that by doping Al atom on the surface of graphene, the band‐gap of graphene can be turned to a certain desired level, making graphene a suitable material for such electronic applications where band‐gap is required similar to semiconducting materials [28].…”

Section: Introductionmentioning

confidence: 99%

Gas sensing properties of Mg‐doped graphene for H₂S, SO₂, SOF₂, and SO₂F₂ based on DFT

Xiao

Li²,

Zhao³

et al. 2022

Int J of Quantum Chemistry

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Sulfur hexafluoride decompositions have been studied to analyze their adsorption properties on pristine graphene (PG) and Mg‐doped graphene (MgG). First of all, after calculating the formation energy of three Mg doping sites, the T doping site of Mg‐doped graphene is the most stable one. Then, several characteristic structures with different orientations and positions of the gas molecules have been carried out to adsorb on PG and MgG, respectively. By calculating the adsorption energies and distance, the most stable adsorption structure of each gas molecule is obtained. In addition, transferred charge (Qt), the density of states (DOS), the energy of highest occupied molecular orbital (HOMO) and lowest unoccupied molecular orbital (LUMO) were used to further analyze the conductivity change and chemical stability of each adsorption system. The results indicate that the adsorption interactions of H2S, SO2, SOF2, and SO2F2 on PG are weak. H2S adsorbed on MgG presented physical adsorption, while the adsorption behaviors of SO2, SOF2, and SO2F2 on MgG are chemisorption. And the adsorption strength was SO2F2 > SOF2 > SO2. In short, MgG shows better selectivity and higher sensitivity to SO2, SOF2, and SO2F2 than PG, demonstrating that the MgG material can be used as suitable gas sensing equipment based on SF6 decomposition products detection, which provides a meaningful guide of alkaline earth metal‐doped graphene in the detection of partial discharge and partial overheat in gas‐insulated switchgears (GIS).

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Design and fabrication of zinc oxide-graphene nanocomposite for gas sensing applications

Cited by 13 publications

References 78 publications

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Pristine and modified silicene based volatile organic compound toxic gas sensor: a first principles study

Gas sensing properties of Mg‐doped graphene for H₂S, SO₂, SOF₂, and SO₂F₂ based on DFT

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Design and fabrication of zinc oxide-graphene nanocomposite for gas sensing applications

Cited by 13 publications

References 78 publications

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

NiO-Based Gas Sensors for Ethanol Detection: Recent Progress

Pristine and modified silicene based volatile organic compound toxic gas sensor: a first principles study

Gas sensing properties of Mg‐doped graphene for H2S, SO2, SOF2, and SO2F2 based on DFT

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Product

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Gas sensing properties of Mg‐doped graphene for H₂S, SO₂, SOF₂, and SO₂F₂ based on DFT