Ultrathin 2D Zirconium Metal–Organic Framework Nanosheets: Preparation and Application in Photocatalysis

He, Ting; Ni, Bing; Zhang, Simin; Gong, Yue; Wang, Haiqing; Gu, Lin; Zhuang, Jing; Hu, Wenping; Wang, Xun

doi:10.1002/smll.201703929

Cited by 195 publications

(155 citation statements)

References 38 publications

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“…[148] Copyright 2010, Springer Nature. Besides, pseudoassembly-disassembly strategy [79] and chemically selective cleavage strategy [199] have also been developed to prepare 2D MOF nanosheets. Reproduced with permission.…”

Section: Other Synthetic Methodsmentioning

confidence: 99%

“…[78][79][80] As demonstrated by Wang and co-workers, the ultrathin 2D Zr-TCPP(Ni) nanosheets showed much higher catalytic activity than their bulk counterparts in the photocatalytic oxidation of 1,5-dihydroxynaphthalene to juglone. On the one hand, the enlarged accessible surface area for LD MOFs can shorten the diffusion distances of reactants and/or products.…”

Section: Distinctive Advantages Of Ld Mofsmentioning

confidence: 95%

“…Relying on this synthetic strategy, a number of 2D MOF nanosheets have been successfully achieved, such as ultrathin Zr-TCPP(Ni) nanosheets (thickness about 1.48 nm), [79] Zr-BPY nanosheets (thickness about 1.2 nm) [177] and Hf-4′-(4-benzoate)-(2,2′,2′′-terpyridine)-5,5′′-dicarboxylate) (TPY) nanosheets (thickness about 1.2 nm). Relying on this synthetic strategy, a number of 2D MOF nanosheets have been successfully achieved, such as ultrathin Zr-TCPP(Ni) nanosheets (thickness about 1.48 nm), [79] Zr-BPY nanosheets (thickness about 1.2 nm) [177] and Hf-4′-(4-benzoate)-(2,2′,2′′-terpyridine)-5,5′′-dicarboxylate) (TPY) nanosheets (thickness about 1.2 nm).…”

Section: Bulk Solution Preparationmentioning

confidence: 99%

“…[53] By comparing the catalytic activities of 1D and 3D Cu-MOF for the CH activation of diphenylmethane, Wang and co-workers demonstrated that 1D structure accelerates the catalytic process, due to possessing more accessible active sites. [79] In addition to directly acting as catalysts, LD MOFs have been also investigated as support materials for the other catalytically active materials. For instance, the Lewis acid centers in Co-BDC nanosheets can catalyze the cycloaddition of CO 2 with epoxides under normal pressure.…”

Section: Other Catalysismentioning

confidence: 99%

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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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Section: Other Synthetic Methodsmentioning

confidence: 99%

Section: Distinctive Advantages Of Ld Mofsmentioning

confidence: 95%

Section: Bulk Solution Preparationmentioning

confidence: 99%

Section: Other Catalysismentioning

confidence: 99%

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

et al. 2019

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“…The BET method can be used for the characterization of various types of microporous materials including zeolites, photocatalysts, polymers, and photoelectrodes . Since MOFs can contain different sizes of micropores, from “ultramicropores” (below 7 Å) to bigger “super‐micropores” (between 7 and 20 Å) or even mesopores (above 20 Å), the obtained BET surface areas can potentially be inaccurate.…”

Section: The Agreement Between Different Types Of Bet Surface Areasmentioning

confidence: 99%

Evaluation of the BET Theory for the Characterization of Meso and Microporous MOFs

et al. 2018

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Surface area determination with the Brunauer–Emmett–Teller (BET) method is a widely used characterization technique for metal–organic frameworks (MOFs). Since these materials are highly porous, the use of the BET theory can be problematic. Several researchers have evaluated the BET method to gain insights into the usefulness of the obtained results and interestingly, their findings are not always consistent. In this review, the suitability of the BET method is discussed for MOFs that have a diverse range of pore widths below the diameters of N2 or Ar and above 20 Å. In addition, the surface area of MOFs that are obtained by implementing different approaches, such as grand canonical Monte Carlo simulations, calculations from the crystal structures or based on experimental N2, Ar, or CO2 adsorption isotherms, are compared and evaluated. Inconsistencies in the state‐of‐the‐art are also noted. Based on the current literature, an overview is provided of how the BET method can give useful estimations of the surface areas for the majority of MOFs, but there are some crucial and specific exceptions which are highlighted in this review.

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2D Metal–Organic Framework Nanosheets with Time‐Dependent and Multilevel Memristive Switching

Ding

Wang

Zhang

et al. 2018

Adv Funct Materials

107

134

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Metal-organic framework (MOF) nanosheets have attracted significant interests for sensing, electrochemical, and catalytic applications. Most significantly, 2D MOF with highly accessible sites on the surface is expected to be applicable in data storage. Here, the memory device is first demonstrated by employing M-TCPP (TCPP: tetrakis(4-carboxyphenyl) porphyrin, M: metal) as resistive switching (RS) layer. The as-fabricated resistive random access memory (RRAM) devices exhibit a typical electroforming free bipolar switching characteristic with on/off ratio of 10 3 , superior retention, and reliability performance. Furthermore, the time-dependent RS behaviors under constant voltage stress of 2D M-TCPP-based RRAMs are systematically investigated. The properties of the percolated conducting paths are revealed by the Weibull distribution by collecting the measured turn-on time. The multilevel information storage state can be gotten by setting a series of compliance current. The charge trapping assisted hopping is proposed as operation principle of the MOF-based RRAMs which is further confirmed by atomic force microscopy at electrical modes. The research is highly relevant for practical operation of 2D MOF nanosheet-based RRAM, since the time widths, magnitudes of pulses, and multilevel-data storage can be potentially set.

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Ultrathin 2D Zirconium Metal–Organic Framework Nanosheets: Preparation and Application in Photocatalysis

Cited by 195 publications

References 38 publications

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

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

Evaluation of the BET Theory for the Characterization of Meso and Microporous MOFs

2D Metal–Organic Framework Nanosheets with Time‐Dependent and Multilevel Memristive Switching

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