Pore size dependent gas-sensing selectivity based on ZnO@ZIF nanorod arrays

Zhou, Tingting; Sang, Yutong; Wang, Xiaoxia; Wu, Congyi; Zeng, Dawen; Xie, Changsheng

doi:10.1016/j.snb.2017.12.024

Cited by 150 publications

(70 citation statements)

References 37 publications

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“…7c and d for MOF-coated ZnO nanorods. 181 With ZIF-8 coating (Fig. 7d, yellow bars), most of ammonia and H 2 pass through, giving similar responses to bare sensors (red bars, reduced by o20%).…”

Section: Pore-size Controlmentioning

confidence: 80%

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Highly selective gas sensing enabled by filters

et al. 2021

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Section: Pore-size Controlmentioning

confidence: 80%

“…Arrows indicate if an analyte's diameter is smaller (blue) or larger (red) than the MOF pores. (d) ZnO sensor response without (red) and with ZIF-8 (yellow) or ZIF-71 (green) MOF overlayers 181. (e) Cross-section image of a Pd-doped SnO 2 sensing film on Al 2 O 3 support coated with MFI zeolite.…”

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confidence: 99%

Highly selective gas sensing enabled by filters

et al. 2021

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“…To date, many LD MOF/non-MOF composites have been synthesized, such as cellulose@ZIF-67 nanowires, [111] Ru/Zn-BTC fibers, [222] ZnO@ZIF-8 rods, [223,224] Cu(HBTC)-1/Fe 3 O 4 -AuNPs nanosheets [225] and so on. To date, many LD MOF/non-MOF composites have been synthesized, such as cellulose@ZIF-67 nanowires, [111] Ru/Zn-BTC fibers, [222] ZnO@ZIF-8 rods, [223,224] Cu(HBTC)-1/Fe 3 O 4 -AuNPs nanosheets [225] and so on.…”

Section: Ld Mof/non-mof Compositesmentioning

confidence: 99%

“…In recent years, the integration of 1D and/or 2D MOFs with a variety of functional materials, such as metal oxides, metal NPs, and COFs, has been extensively studied, which combines the merits from all components and eliminates the shortcoming of individual component. To date, many LD MOF/non‐MOF composites have been synthesized, such as cellulose@ZIF‐67 nanowires, Ru/Zn‐BTC fibers, ZnO@ZIF‐8 rods, Cu(HBTC)‐1/Fe 3 O 4 ‐AuNPs nanosheets and so on.…”

Section: Synthetic Strategies For Ld Mof‐based Materialsmentioning

confidence: 99%

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

et al. 2019

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Low‐dimensional metal–organic frameworks (LD MOFs) have attracted increasing attention in recent years, which successfully combine the unique properties of MOFs, e.g., large surface area, tailorable structure, and uniform cavity, with the distinctive physical and chemical properties of LD nanomaterials, e.g., high aspect ratio, abundant accessible active sites, and flexibility. Significant progress has been made in the morphological and structural regulation of LD MOFs in recent years. It is still of great significance to further explore the synthetic principles and dimensional‐dependent properties of LD MOFs. In this review, recent progress in the synthesis of LD MOF‐based materials and their applications are summarized, with an emphasis on the distinctive advantages of LD MOFs over their bulk counterparties. First, the unique physical and chemical properties of LD MOF‐based materials are briefly introduced. Synthetic strategies of various LD MOFs, including 1D MOFs, 2D MOFs, and LD MOF‐based composites, as well as their derivatives, are then summarized. Furthermore, the potential applications of LD MOF‐based materials in catalysis, energy storage, gas adsorption and separation, and sensing are introduced. Finally, challenges and opportunities of this fascinating research field are proposed.

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“…An increasing number of studies have focused on the size-selective sieving properties of MOFs to take up specific guest molecules in gas sensing devices. For instance, the chemically robust and thermally stable zinc-based zeolite imidazole framework (ZIF-8) has been recently used as a membrane in semiconductor metal oxides (SMOs)-based sensors for selective gas sensing [54,55,56,57,58,59,60,61]. Owing to its large cavities (11.6 Å) and small pores apertures (3.4 Å), ZIF-8 allows the selective permeation of gas molecules smaller than the pores aperture while rejecting the penetration of larger gas molecules.…”

Section: Mofs As Nanomembranes To Improve the Selectivity Of Gas Smentioning

confidence: 99%

On the Use of MOFs and ALD Layers as Nanomembranes for the Enhancement of Gas Sensors Selectivity

et al. 2019

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Improving the selectivity of gas sensors is crucial for their further development. One effective route to enhance this key property of sensors is the use of selective nanomembrane materials. This work aims to present how metal-organic frameworks (MOFs) and thin films prepared by atomic layer deposition (ALD) can be applied as nanomembranes to separate different gases, and hence improve the selectivity of gas sensing devices. First, the fundamentals of the mechanisms and configuration of gas sensors will be given. A selected list of studies will then be presented to illustrate how MOFs and ALD materials can be implemented as nanomembranes and how they can be implemented to improve the operational performance of gas sensing devices. This review comprehensively shows the benefits of these novel selective nanomaterials and opens prospects for the sensing community.

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Pore size dependent gas-sensing selectivity based on ZnO@ZIF nanorod arrays

Cited by 150 publications

References 37 publications

Highly selective gas sensing enabled by filters

Highly selective gas sensing enabled by filters

Structural Engineering of Low‐Dimensional Metal–Organic Frameworks: Synthesis, Properties, and Applications

On the Use of MOFs and ALD Layers as Nanomembranes for the Enhancement of Gas Sensors Selectivity

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