Ultrasensitive gas sensor based on Pd/SnS2/SnO2 nanocomposites for rapid detection of H2

Meng, Xiaoning; Bi, Mingshu; Xiao, Qiuping; Gao, Wei

doi:10.1016/j.snb.2022.131612

Cited by 75 publications

(22 citation statements)

References 40 publications

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“…We fabricated the sensors and examined their gas-sensing characteristics by fluctuating gas concentrations of H 2 varying from 5 to 0.1 ppm at RT in extreme humidity (90% RH), as shown in Figure a,b. Considering the real applications of H 2 gas as a marker for various vital applications, ,,, these specific experimental situations are desired to replicate the humid conditions of harsh environments. As shown from Figure a, b, the ZnO@GC-750 sensor shows the maximum gas response.…”

Section: Resultsmentioning

confidence: 99%

“…The ZnO@GC-550 displays a broad D-band peak at 1379 cm −1 , which might be caused by the sp 3 -carbon vibrational mode in the graphite structure. Furthermore, it consists of a wideband at 1570 cm −1 for sp 2 -carbon in graphene. 34,35 As demonstrated in Figure 2d, these vibrational D and G bands are markedly shifted toward the right for the ZnO@GC-650 and ZnO@GC-750 samples.…”

Section: Resultsmentioning

confidence: 99%

“…In recent times, the hydrogen (H 2 ) economy has been on the rise as a potential clean energy alternative to the dominant petroleum product market. Given that it is abundant and renewable and has zero carbon-based combustion, − H 2 power can be part of the solution to dangerous atmospheric deviation issues. Additionally, there is popularity for cutting-edge innovative work in the few fields of H 2 production.…”

Section: Introductionmentioning

confidence: 99%

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Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Sharma

Karuppasamy

Vikraman

et al. 2022

ACS Appl. Mater. Interfaces

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Although they are not as favorable as other influential gas sensors, metal-oxide semiconductor-based chemiresistors ensure minimal surface reactivity, restricting their gas selectivity, gas response, and reaction kinetics, particularly when functioning at room temperature (RT). A hybrid design, which includes metal-oxide/carbon nanostructures and passivation with specific gas filtration layers, can address the concerns of surface reactivity. We present a novel hierarchical nanostructured zinc oxide (ZnO), decorated with graphitic carbon (GC) and synthesized via a wet-chemical strategy, which is then followed by the self-assembly of a zeolitic imidazolate framework (ZIF-8). Because of its large surface area, high porosity, and efficient inspection of other analyte (interfering) gases, the ZnO@GC can provide intensified surface reactivity at RT. In the present study, such a hybrid sensor confirmed extraordinary gas sensing properties, which was characterized by excellent H2 selectivity, fast response, rapid recovery kinetics, and high gas response (ΔR/R 0 ∼ 124.6%@10 ppm), particularly in extremely humid environments. The results reveal that adsorption sites provided by the ZIF-8 template-based ZnO@GC frameworks facilitate the adsorption and desorption of H2.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Sharma

Karuppasamy

Vikraman

et al. 2022

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

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“…When the working temperature is too low, the gas molecules do not have enough heat energy and kinetic energy to react on the In 2 O 3 surface, so the adsorption capacity of the gas is reduced. However, when the operating temperature is too high, the gas molecules adsorbed on the In 2 O 3 surface will have a high activity and escape before the electron carrier transfer, resulting in a reduced response [ 3 , 36 ]. In addition, the response values of different sensors were tested with different concentrations of H 2 (10~1000 ppm) at 275 °C.…”

Section: Resultsmentioning

confidence: 99%

“…Therefore, an effective survey of H 2 has become an important problem to be solved. At present, detection methods of H 2 include gas chromatography, mass spectrometry, gas sensors, and so on [ 3 ]. In the above methods, gas sensors have become the best choice, with the advantages of low cost, simple preparation, and small size [ 4 ].…”

Section: Introductionmentioning

confidence: 99%

Highly Selective Gas Sensor Based on Litchi-like g-C3N4/In2O3 for Rapid Detection of H2

Pan

et al. 2022

Sensors

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Hydrogen (H2) has gradually become a substitute for traditional energy, but its potential danger cannot be ignored. In this study, litchi-like g-C3N4/In2O3 composites were synthesized by a hydrothermal method and used to develop H2 sensors. The morphology characteristics and chemical composition of the samples were characterized to analyze the gas-sensing properties. Meanwhile, a series of sensors were tested to evaluate the gas-sensing performance. Among these sensors, the sensor based on the 3 wt% g-C3N4/In2O3 (the mass ratio of g-C3N4 to In2O3 is 3:100) showeds good response properties to H2, exhibiting fast response/recovery time and excellent selectivity to H2. The improvement in the gas-sensing performance may be related to the special morphology, the oxygen state and the g-C3N4/In2O3 heterojunction. To sum up, a sensor based on 3 wt% g-C3N4/In2O3 exhibits preeminent performance for H2 with high sensitivity, fast response, and excellent selectivity.

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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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Ultrasensitive gas sensor based on Pd/SnS2/SnO2 nanocomposites for rapid detection of H2

Cited by 75 publications

References 40 publications

Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Highly Selective Gas Sensor Based on Litchi-like g-C3N4/In2O3 for Rapid Detection of H2

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

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Ultrasensitive gas sensor based on Pd/SnS2/SnO2 nanocomposites for rapid detection of H2

Cited by 75 publications

References 40 publications

Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Metal Organic Framework-Derived ZnO@GC Nanoarchitecture as an Effective Hydrogen Gas Sensor with Improved Selectivity and Gas Response

Highly Selective Gas Sensor Based on Litchi-like g-C3N4/In2O3 for Rapid Detection of H2

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

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