Enclosed hollow tubular ZnO: Controllable synthesis and their high performance cataluminescence gas sensing of H2S

Zeng, Binrong; Zhang, Lichun; Wu, Liqian; Su, Yingying; Lv, Yi

doi:10.1016/j.snb.2016.09.141

Cited by 41 publications

(9 citation statements)

References 52 publications

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“…As shown in Figure 5a, the isotherms of the Co 3 O 4 and Co 3 O 4 /pCNH composite is categorized to type IVaccording to the IUPAC, with the hysteresis loop of H 3 -type [2]. This not only shows that it is categorized typical mesoporous material but it also illustrates the existence of an aggregation of the laminated structure with a narrow slit formed by the pCNH and Co 3 O 4 composites from hysteresis loop of H 3 -type.…”

Section: Resultsmentioning

confidence: 99%

“…In the present study, noble metals (Au, Ag) are sensitive to gas, but they have high price, poor stability [1] (for the increasing particles affected by light, humidity, the accumulating carbonate on the surface of Au particles) and a short lifetime, making their application in gas sensors difficult to apply in industrial production and daily life. Thus, SMOs are widely researched and applied in the gas sensor to detect hazardous and toxic gases owing to their high conductivity, labile features by environment, low cost, and easy preparation, for instance, the ZnO [2,3], SnO 2 [4,5], CuO [6], Co 3 O 4 [7,8], α-Fe 2 O 3 [9], NiO [10], In 2 O 3 [11], and WO 3 [12,13]. SMOs have defects, such as high operating temperature, low sensitivity, and poor selectivity.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Nitride Decorated Ball-Flower like Co3O4 Hybrid Composite: Hydrothermal Synthesis and Ethanol Gas Sensing Application

et al. 2018

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Recently, semiconducting metal oxide (SMO) gas sensors have attracted the attention of researchers for high conductivity, labile features by environment, low cost, easy preparation, etc. However, traditional SMOs have some defects such as higher operating temperature and lower response value, which greatly limit their application in the field of gas sensor. In this work, the carbon nitride decorated ball-flower like Co3O4 composite was successfully synthesized via a facile hydrothermal method, the composition and morphology of the as-synthesized samples were studied by the techniques of X-ray powder diffraction (XRD), Field-emission scanning electron microscopy (FESEM), Transmission electron microscopy (TEM), Fourier transform infrared spectrometer (FT-IR) and N2-sorption. As a consequence, the pure Co3O4 and the carbon nitride decorated Co3O4 both possess ball-flower like structure, and the as-synthesized carbon nitride decorated Co3O4 composite exhibits significant sensing properties to ethanol which is 1.6 times higher than that of pure Co3O4, furthermore, the composite possesses high selectivity and stability towards ethanol detection.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Carbon Nitride Decorated Ball-Flower like Co3O4 Hybrid Composite: Hydrothermal Synthesis and Ethanol Gas Sensing Application

et al. 2018

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“…Due to the improvement of people's life, it is significant to monitor toxic and harmful gases timely and effectively. In recent years, metal oxide semiconductors such as ZnO,, SnO 2 ,, In 2 O 3 ,, WO 3 ,, NiO, Co 3 O 4 , etc. have been widely used for gas monitoring because of their high response, simple synthesis and low cost.…”

Section: Introductionmentioning

confidence: 99%

Investigation on Trimethylamine Sensing Performance of PdO‐Decorated ZnO Flower‐Like Structures Synthesized by One‐ Step Hydrothermal Method

et al. 2019

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ZnO and PdO‐decorated ZnO flower‐like structures have been synthesized using a facile one‐step hydrothermal method followed by subsequent calcination. Then, their structural information and trimethylamine (TMA) sensing performance were investigated. The results exhibited that the diameter of these ZnO flower‐like structures was in the range of 3–7 μm. Its morphology was maintained after introducing PdO nanoparticales. By comparing the sensing properties, it is found that sensors based on PdO‐decorated ZnO flower‐like structures showed higher TMA response than that of pure one. Especially, the sensor fabricated by 1 mol% PdO‐decorated ZnO flower‐like structures displayed superior gas sensing performances including high response, rapid response/recover characteristics, good stability, and high selectivity. Such a superior sensing performance is mainly due to the chemical and electrical sensitization of PdO nanoparticles. This simple synthesis strategy and a desirable TMA sensing performance could be broadly developed other metallic doped metal oxide flower‐like structures as high performance sensing materials.

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“…Generally speaking, CTL-based sensors since their inception have been established mainly for specific gas detection. CTL sensors based on the sensing elements of nanomaterials have broad application for monitoring various VOCs [50] including alcohols [29,[51][52][53][54] , aldehydes [55,56] , ketones [28,[57][58][59][60][61][62] , esters [63] , ethers [64][65][66] , acids [67] , hydrocarbon [47,68,69] , halohydrocarbon [70] , and inorganic small molecule gases [71] , including H 2 S [72][73][74][75][76][77] and CO [21,48,78] , all of which have contributed significantly to environmental monitoring. In addition, the selective detection of some analytes has also functioned to promote medical research and clinical diagnosis.…”

Section: Gas Selective Monitoringmentioning

confidence: 99%

Recent advances in methodologies and applications of cataluminescence sensing

Zhang

et al. 2020

Luminescence

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Cataluminescence (CTL), a kind of chemiluminescence emitted at the gas–solid interface during catalytic oxidation reactions, has been developed for many decades as a novel and promising gas sensing technique. In this review, we introduce the origin, basic principles, and mechanisms of CTL sensing systems and summarize the recent advances in CTL sensing, focusing on methodologies and extended applications such as in gas selective monitoring, recognition of complex mixture, evaluation for catalytic property and use in high‐performance liquid chromatography, capillary electrophoresis and gas chromatography detectors. In addition, development prospects and some challenges facing CTL‐based sensing are also discussed.

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Enclosed hollow tubular ZnO: Controllable synthesis and their high performance cataluminescence gas sensing of H2S

Cited by 41 publications

References 52 publications

Carbon Nitride Decorated Ball-Flower like Co3O4 Hybrid Composite: Hydrothermal Synthesis and Ethanol Gas Sensing Application

Carbon Nitride Decorated Ball-Flower like Co3O4 Hybrid Composite: Hydrothermal Synthesis and Ethanol Gas Sensing Application

Investigation on Trimethylamine Sensing Performance of PdO‐Decorated ZnO Flower‐Like Structures Synthesized by One‐ Step Hydrothermal Method

Recent advances in methodologies and applications of cataluminescence sensing

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