Performance improvement of MOCVD grown ZnGa2O4 based NO gas sensors using plasma surface treatment

Chang, Shun‐Ping; Singh, Anoop Kumar; Shao, Jhih-Hong; Huang, Chiung‐Yi; Shieh, Jia-Min; Liu, Po−Liang; Horng, Ray−Hua

doi:10.1016/j.apsusc.2023.157929

Cited by 14 publications

(1 citation statement)

References 34 publications

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“…In recent years, a family of transition metal oxides known as spinel oxides, including stannate (M 2+ ) 2 SnO 4 [1], gallate (M 2+ )Ga 2 O 4 [2], aluminate (M 2+ )Al 2 O 4 [3], cobaltite (M 2+ )Co 2 O 4 [4], chromate (M 2+ )Cr 2 O 4 [5], manganite (M 2+ )Mn 2 O 4 [6], ferrite (M 2+ )Fe 2 O 4 [7] has shown significant versatility in various applications. Among these, the (M 2+ )Fe 2 O 4 has demonstrated a significant role across various areas such as electromagnetic interference shielding, energy storage, and photocatalysis.…”

Section: Introductionmentioning

confidence: 99%

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Phan,

Nguyen,

Nguyen

et al. 2024

Adv. Nat. Sci: Nanosci. Nanotechnol.

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The cross-response is a considerable primary challenge of gas sensors based on semiconducting metal oxide (SMO), especially in detecting and classifying gases with comparable properties. In this work, the copper ferrite (CuFe2O4, CFO) nanofibers (NFs)-based sensors were straightforwardly synthesised by electrospinning technique. The morphology of the CFO NFs was observed using scanning electron microscopy (SEM), which revealed a rough surface with a diameter of approximately 80 nm. The composition of the fiber was confirmed by energy dispersive spectroscopy (EDS), which showed the fiber’s chemical elements to include Cu, Fe, and O. The microstructural characteristics of the CFO NFs were analysed using x-ray diffraction (XRD) and Raman spectroscopy, confirming the characteristic peaks of the CFO phase. The gas sensing characteristics of CFO-based sensors have been examined to 25−200 ppm of various gases of (CH3)2CO, CH3CH2OH, NH3, and H2 at a function of working temperature of 350−450 °C. The gas-sensing mechanism of the sensor based on CFO NFs is explained by the surface depletion layer and the grain boundary model. The successful categorisation of these gases into distinct groups was realised, indicating that the issue of cross-response caused by interfering gases was effectively addressed with the aid of an artificial intelligence algorithm.

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Section: Introductionmentioning

confidence: 99%

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Phan,

Nguyen,

Nguyen

et al. 2024

Adv. Nat. Sci: Nanosci. Nanotechnol.

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Selective Detection of H₂ Gas in Gas Mixtures Using NiO‐Shelled Pd‐Decorated ZnO Nanowires

Badie,

Mirzaei,

Lee

et al. 2024

Adv Materials Technologies

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Hydrogen (H2) gas is a green fuel, but its leakage during storage and transportation can lead to disasters due to its explosive nature. Here, a sensitive and selective H2 gas sensor is developed that can detect H2 in H2/CO and H2/NO2 gas mixtures. First, ZnO nanowires (NWs) are grown using vapor–liquid–solid growth. This is followed by atomic layer deposition‐mediated growth of Pd nanoparticles (NPs) on the ZnO NWs and uniform deposition of a thin NiO shell layer (12 nm in thickness) over the Pd‐decorated ZnO NWs. Characterization of the synthesized samples by different methods confirms the desired chemical composition, morphology, and phases. H2 gas sensing studies reveals the highly sensitive and selective response of the optimized gas sensor to H2 at 200 °C. In the presence of H2/CO and H2/NO2 gas mixtures, the NiO‐shelled Pd‐decorated ZnO NW sensor displays good selectivity for H2, but not the Pd‐decorated ZnO NW gas one. The NiO‐shelled Pd‐decorated ZnO NW gas sensor efficiently detected H2 also in the presence of 40% relative humidity and displays good stability even after 1 month. The present results can open the doors to the fabrication of highly selective H2 gas sensors using the described rationale design.

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Design and fabrication of Sm2O3/multi-walled carbon nanotube hybrid sensors for detection of LPG and ethanol gases

Narmatha,

Raja,

Vasanthan

et al. 2023

J Mater Sci: Mater Electron

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Performance improvement of MOCVD grown ZnGa2O4 based NO gas sensors using plasma surface treatment

Cited by 14 publications

References 34 publications

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Selective Detection of H₂ Gas in Gas Mixtures Using NiO‐Shelled Pd‐Decorated ZnO Nanowires

Design and fabrication of Sm2O3/multi-walled carbon nanotube hybrid sensors for detection of LPG and ethanol gases

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Performance improvement of MOCVD grown ZnGa2O4 based NO gas sensors using plasma surface treatment

Cited by 14 publications

References 34 publications

Directly electrospun copper ferrite CuFe2O4 nanofiber-based for gas classification

Directly electrospun copper ferrite CuFe2O4 nanofiber-based for gas classification

Selective Detection of H2 Gas in Gas Mixtures Using NiO‐Shelled Pd‐Decorated ZnO Nanowires

Design and fabrication of Sm2O3/multi-walled carbon nanotube hybrid sensors for detection of LPG and ethanol gases

Contact Info

Product

Resources

About

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Directly electrospun copper ferrite CuFe₂O₄ nanofiber-based for gas classification

Selective Detection of H₂ Gas in Gas Mixtures Using NiO‐Shelled Pd‐Decorated ZnO Nanowires