Fabrication of ZIF-8 encapsulated ZnO microrods with enhanced sensing properties for H2 detection

Cui, Fang; Chen, Weigen; Jin, Lufan; Zhang, He; Jiang, Zikai; Zhang, Song

doi:10.1007/s10854-018-0095-9

Cited by 27 publications

(26 citation statements)

References 40 publications

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“…Moreover, ZIF-8 presents high thermal stability and mild synthetic conditions which are propitious to the integration of the sensor.T herefore,some groups chose ZIF-8 thin films as the filtration layer to improve the sensing performance. [48] Koo et al [48i] fabricated aH 2 sensor,w here ZIF-8 functioning as af iltration layer was assembled onto Pd nanowires (NWs) (Figure 3c). Thes mall pore size of ZIF-8 allows H 2 to enter, but also screens nitrogen (0.364 nm) and oxygen (0.345 nm) effectively.I nc omparison with the sensing performance of pristine Pd NWs (164 sf or response to 1% H 2 ,2 29 sf or recovery), the Pd NWs with the ZIF-8 film showed only aslightly reduced response to H 2 (DR/R 0 = 3.5 %vs.…”

Section: Filtration Layermentioning

confidence: 99%

The Role of Metal–Organic Frameworks in Electronic Sensors

2021

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H ereceived his Ph.D. in organic chemistry from Fujian Institute of Research on the Structure of Matter under the direction of Prof. Tian-Lu Sheng. His research interests include MOF materials in functional electronic devices. Ye Zhou is an IAS Fellow and group leader in the Institute for Advanced Study,Shenzhen University.H is research interests include flexible and printed electronics, organic/inorganic semiconductors, surface and interface physics, nanostructured materials, and nanoscale devices for technological applications, such as logic circuits, data storage, energy harvesting, photonics, and sensors.

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Section: Filtration Layermentioning

confidence: 99%

The Role of Metal–Organic Frameworks in Electronic Sensors

2021

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“…Therefore, for gas detection, ZIF-8 is usually used to detect smaller gas molecules (e.g., H 2 , formaldehyde, etc.) [80,91], while ZIF-71 is used to detect larger gas molecules (e.g., ethanol, acetone, etc.) [95].…”

Section: Selection Of Composite Materials With Smox and Mofmentioning

confidence: 99%

“…Moreover, it has been shown that energy band bending occurs at the core-shell interface, which promotes spontaneous carrier transfer, so there is no need for higher temperatures to provide a large amount of energy. Its optimal operating temperature is greatly reduced compared to that of pure metal oxide-based gas sensors [91].…”

Section: Selection Of Composite Materials With Smox and Mofmentioning

confidence: 99%

“…The response is reduced compared to the original ZnO sensor, which they attribute to the limitation of H 2 diffusion through ZIF. By increasing the number of pure ZnO nanorods, Cui et al [91] reduced the proportion of insulating ZIF in materials, thus improving the response to H 2 . The synthesized ZnO@ZIF-8 core-shell microrod gas sensor also reduced the optimal operating temperature for detecting H 2 to 125 • C. Although the response is higher, the response-recovery rate remains lower than that of pure ZnO due to the limitation of H 2 diffusion by ZIF-8.…”

Section: Detection Using Molecular Sieve Onlymentioning

confidence: 99%

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Application of Metal-Organic Framework-Based Composites for Gas Sensing and Effects of Synthesis Strategies on Gas-Sensitive Performance

Huang

Zeng

2021

Chemosensors

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Gas sensing materials, such as semiconducting metal oxides (SMOx), carbon-based materials, and polymers have been studied in recent years. Among of them, SMOx-based gas sensors have higher operating temperatures; sensors crafted from carbon-based materials have poor selectivity for gases and longer response times; and polymer gas sensors have poor stability and selectivity, so it is necessary to develop high-performance gas sensors. As a porous material constructed from inorganic nodes and multidentate organic bridging linkers, the metal-organic framework (MOF) shows viable applications in gas sensors due to its inherent large specific surface area and high porosity. Thus, compounding sensor materials with MOFs can create a synergistic effect. Many studies have been conducted on composite MOFs with three materials to control the synergistic effects to improve gas sensing performance. Therefore, this review summarizes the application of MOFs in sensor materials and emphasizes the synthesis progress of MOF composites. The challenges and development prospects of MOF-based composites are also discussed.

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“…Recently, there has been great interest in the creation of various sensors. One of the promising applications of zinc oxide is a creation of gas sensors using arrays of nanocrystals [ 14 , 15 , 16 , 17 , 18 , 19 ], as well as single ZnO nanorods [ 20 , 21 ].…”

Section: Introductionmentioning

confidence: 99%

Ultraviolet Radiation Sensor Based on ZnO Nanorods/La3Ga5SiO14 Microbalance

Рощупкин

Редькин

Емелин

et al. 2021

Sensors

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The possibility of creating resonant ultraviolet (UV) sensors based on the structure of ZnO nanorods/La3Ga5SiO14 microbalance (LCM) has been investigated. The principle of sensor operation is based on the desorption of oxygen from the surface of ZnO nanorods upon irradiation with UV light and an increase in the concentration of charge carriers that leads to an increase in the capacitance of the structure of ZnO nanorods/LCM. It has been shown that UV radiation intensity affects the resonance oscillation frequency of the LCM sensor. After the end of irradiation, the reverse process of oxygen adsorption on the surface of ZnO nanorods occurs, and the resonance frequency of the sensor oscillations returns to the initial value.

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Fabrication of ZIF-8 encapsulated ZnO microrods with enhanced sensing properties for H2 detection

Cited by 27 publications

References 40 publications

The Role of Metal–Organic Frameworks in Electronic Sensors

The Role of Metal–Organic Frameworks in Electronic Sensors

Application of Metal-Organic Framework-Based Composites for Gas Sensing and Effects of Synthesis Strategies on Gas-Sensitive Performance

Ultraviolet Radiation Sensor Based on ZnO Nanorods/La3Ga5SiO14 Microbalance

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